Answer:
The cost for each television costs $60
Step-by-step explanation:
30*18 = 540
1620 - 540 = 1080
1080 / 18 = 60
I need help please, not very good at math
Answer:
the answer is 19.2 I think
PLEASE HELP (image attached)
Answer:
1: 3 choice 2: choice 1
Step-by-step explanation:
6x+9+5x-20 = 11x -11
x-8 - 3x - 3 = -2x-11
Ilyas has a $50 online gift voucher. He plans to buy as many books as he can with it. The cost of each book is $4. There is also a single shipping charge of $7.50. How many books can he afford without spending more than his gift voucher amount?
Answer:
10
Step-by-step explanation:
Set up an inequality
4x + 7.50 [tex]\leq[/tex] 50
4x [tex]\leq[/tex] 42.50
x [tex]\leq[/tex] 10.625
So the answer is 10 because you can't buy .625 of a book
Answer:
10 books
Step-by-step explanation:
50-7.50=42.5
42.5÷4=10.625
but that means it is only 10 books as there is no 10 and a half book
:)
1. Heaven hasn markers. Miley has marker fewer than twice the number of
markers Heaven has. Write and simplify an expression for the total number of
markers they have.
Answer:
hey are you new i love this app so much a get my answers right evarytime but i dont have any folowers but thats okay its the thaught that counts wright
Jada walks up to a tank of water that can hold up to 10 gallons. When it is active, a drain
empties water from the tank at a constant rate, When Jada first sees the tank, it contains 7 gallons of water. Three minutes later, the tank contains 5 gallons of water.
A. At what rate is the amount of water in the tank changing? Use a signed number, and
include the unit of measurement in your answer.
B. How many more minutes will it take for the tank to drain completely?
C. How many minutes before Jada arrived was the water tank completely full?
Answer:
Part A)The amount of water in the tank is changing at -2/3 gallons per minute.
Part B) it will take 7.5 minutes for the tank to drain completely.
Part C) The water tank was completely full 4.5 minutes before Jada arrived.
Step-by-step explanation:
Information fetching:
Tank of water can hold up-to 10 gallons.
When it is active, a drain empties water from the tank at a constant rate.
7 gallons of water present in the tank when Jade first saw
5 gallons of water left after 3 minutes
Part A) At what rate is the amount of water in the tank changing?
As the gallons were decreased from 7 to 5 in three minutes. It means in three minutes, 2 gallons were decreased.
So, gallons per minute change would be -2/3 gallons per minute. Hence, the amount of water in the tank is changing at -2/3 gallons per minute.
Note: negative sign indicates the number of gallons of water are decreasing.
Part B) How many more minutes will it take for the tank to drain completely.
Let 'm' be the number of minutes will it take for the tank to drain completely.
As,
(2/3 gallons per minute) (m minutes) = 5 gallons
So,
m = 5 (3/2)
= 15/2
= 7.5 minutes
So, it will take 7.5 minutes for the tank to drain completely.
Part C) How many minutes before Jada arrived was the water tank completely full
As tank of water can hold up to 10 gallons. So, the tank of water is full when there is 10 gallons of water. So, this is 3 gallons of water more than the total 7 number of gallons at the time when Jada arrived.
As Jada arrived when the tank had left 7 gallons.
Let 'm' be the number of minutes before Jada arrived when the water tank was completely full.
So,
(2/3) (m) = 3
m = 3(3/2) = 9/2
= 4.5 minutes
So, the water tank was completely full 4.5 minutes before Jada arrived.
Work out, giving your answer in its simplest form:
32 + 2
응
help
Step-by-step:
[tex]3\frac{1}{2}+2\frac{3}{5} = \frac{7}{2} + \frac{13}{5} = \frac{35}{10}+\frac{26}{10} = \frac{61}{10}.[/tex]
Explaination:
Use [tex]a\frac{x}{y} = \frac{a.y+x}{y}[/tex] to convert a mixed number to a fraction.
Use [tex]\frac{a}{b} +\frac{x}{y} = \frac{a.y}{b.y}+\frac{b.x}{b.y} = \frac{a.y+b.x}{b.y}[/tex] to calculate the sum of two fractions with different denominators.
Hope this help!
How much simple interest does $12,000
earn in 30 months at an interest rate
Of 2.75?
Answer:
9,900
Step-by-step explanation:
I=PRT
I=12,000*2.75*30=9,900
100
My question is in the attachment.
Answer: The answer is c
Step-by-step explanation:
cause common sense
Simplify to create an equivalent expression.
3n + 2(-2n-1)
Answer: -n -2
Step-by-step explanation:
distribute the 2
3n+ -4n-2
combine like terms
-n -2
Solution:
3n + 2(-2n - 1)=> 3n + (-4n - 2)=> 3n - 4n - 2=> -n - 2The simplified expression is -n - 2.
Find the area of the polygon
A) 59 square units
B) 65 square units
C) 72 square units
D) 83 square units
Answer:
B) 65 square units
Step-by-step explanation:
Triangle[SUT]=4.8/2=16
Trapezoid [SUQR]=(8+6).7/2=49
16+49=65
HELP HELP HELP HELP help pls help
Answer:
supplementary
Step-by-step explanation:
angles that are over 90° that over all equal to 180° are supplementary. 156° is over 90° and adding 24° is simple math, meaning 156+24=180
hope this helps
Please Help Me Quickly As Soon As Possible, I Have A Test. I Will Give Out Brainly.
The equation to show the depreciation at the end of x years is
[tex]f(x) = 1500 - 200x[/tex]
Data;
cost of machine = 1500annual depreciation value = xLinear EquationThis is an equation written to represent a word problem into mathematical statement and this is easier to solve.
To write a linear depreciation model for this machine would be
For number of years, the cost of the machine would become
[tex]1500 - 200x[/tex]
This is properly written as
[tex]f(x) = 1500 - 200x[/tex]
where x represents the number of years.
For example, after 5 years, the value of the machine would become
[tex]f(x) = 1500 - 200x\\f(5) = 1500 - 200(5)\\f(5) = 1500 - 1000\\f(5) = 500[/tex]
The value of the machine would be $500 at the end of the fifth year.
From the above, the equation to show the depreciation at the end of x years is f(x) = 1500 - 200x
Learn more on linear equations here;
https://brainly.com/question/4074386
Solve the equation. − 12 + ( − 32 ) =
Answer: -44
Step-by-step explanation: First you do add -32 to both sides of the equation, then yo add it all together... Hope this helped :)
Answer:
-12+(-32)= -44
Step-by-step explanation:
negative numbers plus a negative number would result in a smaller negative number. So -12 + -32 would be -44.
Sara sells bracelets at a farmer's market. For each bracelet she sells, she spends $5 on beads and hardware. She also pays 10$ per day to rent a booth.
Write a Simplified Expression that represents Sara's total expenses for selling x bracelets per day in 4 days.
Answer:
20x+40
Step-by-step explanation:
x is the no of bracelets/per day
constant expense for a day = 10$
rent charge for 4 days = 40$
expense for beads/hardware for 4 days = 5X*4= 20x
exp = 20x+40
Nancy bought chicken and a bag of potatoes for dinner. The total cost of the
chicken was 4 times as much as the cost of the potatoes and the total cost of
the chicken was $12. How much did the potatoes cost?
Answer:
3$
Step-by-step explanation:
If the chicken was 4 times the amount of potatoes you would have to divide 12 by 4 to get you answer which would be 3$
12/4 = 3
potato's = 3$
to check you answer you would do 3 times 4 and if it gives you the cost of chicken (12) then it is correct.
Answer: $3
Step-by-step explanation:
If the chicken is 4 times as much, you can divide the cost of the chicken, which is $12. So, 12 divided by 4 is 3. The potatoes cost 3 dollars.
What is 4 4/7 reciprocal or if it has one
Answer:
7/32
Step-by-step explanation:
The reciprocal of a value is simply the inverse of it. That is, if a value n is any value in the number spectrum, the reciprocal would be 1/n.
In this case, 4 4/7 can be written as 32/7 as an improper fraction. Now the reciprocal of that would be to flip the numerators and the denominators. (1 / 32/7 is basically 1 * 7/32).
The reciprocal of 4 4/7 is 7/32.
Out of 50 students in a class, 10 students like Maths but not Science and 15 students like Science but not Maths. If 10 students like neither of both subjects;
(i) show the above information in a Venn-diagram
(ii)find the ratio of the students who like Maths to the students who like Science.
Answer:
ok so if we made a venn diagram it would look like this
math neither science
10 | 10 | 15
the ration math to science liking kids is
10:15 or 2:3
Hope This Helps!!!
The ratio of the students who like Maths to the students who like Science is 5:6.
What is the Venn diagram?A Venn diagram is a diagram that helps us visualize the logical relationship between sets and their elements and helps us solve examples based on these sets. A Venn diagram typically uses intersecting and non-intersecting circles (although other closed figures like squares may be used) to denote the relationship between sets.
(i) Given that, n(U)=50, n(S)=15, n(M)=10 and n(S∪M)=10
Let us take the students who like both subjects n(S∩M)=x
Now, 50=10+x+15+10
50=x+35
x=15
(ii) The number of students who like maths
=n(M)+n(S∩M)
= 10+15=25
The number of students who like Science
= n(S)+n(S∩M)
= 15+15=30
So, ratio is 25:30
= 5:6
Therefore, the ratio of the students who like Maths to the students who like Science is 5:6.
To learn more about the Venn diagram visit:
https://brainly.com/question/28060706.
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Which statement correctly describes this expression? 2m^3 -11
Answer:
Option A is the correct answer
Step-by-step explanation:
A. The difference of twice the cube of a number and 11
A school needs 1,800 notebooks for next year. If the notebooks come in packages of 90, how many packages should the school buy?
Answer:
20 packages
Step-by-step explanation:
the school needs 1800 notebooks, since the notebooks come in packages of 90 each. there will be a total of 20 packages.
formula
1800/90
= 20
Answer:
20
Step-by-step explanation:
Let x be the number of packs the school should buy.
1800[tex]\geq[/tex]90x
/90 /90
20[tex]\geq[/tex]x
If d-6c=4 and 2d-9c=20, find the value of d/c
Answer:
7
Step-by-step explanation:
You get the value of c and d as follow
c=4
d=28
now,
d/c=28/4=7
so,
the value of d/c here is 7
Is triangle ABC= triangle DEF?
Answer:
cannot be determined
Step-by-step explanation:
you know they are similar triangles because their angles are congruent, but you cannot determine if they are the same because you are not given that any of their sides are congruent
The table shows the scores of two teams at the end of the first half of a trivia challenge.
How many more points did the Huskies score than the Bobcats?
Answer: [tex]3x-4[/tex]
Step-by-step explanation:
Difference = Huskies - Bobcats
Hence,
[tex](5x-3)-(2x-7)\\=5x-3-2x+7\\=3x+4[/tex]
How many solutions does this equation have?
–6 − 4m = 3 − 4m
Find value of x when y = 1
Answer:
x = 3.2
Explanation:
when y = 1
1 = x²-2x-3
x²-2x-3-1 = 0
x²-2x-4 = 0
using the formula: [tex]x = \frac{ -b \pm \sqrt{b^2 - 4ac}}{2a}[/tex][tex]x = \frac{ 2 \pm \sqrt{(-2)^2 - 4(1)(-4)}}{2*1}[/tex]
[tex]x = 1 + \sqrt{5}[/tex]
x = 3.236
x = 3.24 in 2 decimal places
x = 3.2 in nearest tenth
40 POINTS
please answer me this question with an explanation
Answer:
(16/3,-4)
Step-by-step explanation:
y=-3/4x & y=3/2x -12then solve for x which means -3/4x=3/2x-12then the value of x=16/3put the x value in one equation y=3/4(16/3)then the value of y=-4Answer:
T(5 1/3, - 4)Step-by-step explanation:
You need to solve the system of linear equations to find the intersection:
y = - 3/4xy = 3/2x - 12Substitute and solve for x:
- 3/4x = 3/2x - 12- 3x = 6x - 486x + 3x = 489x = 48x = 48/9x = 5 1/3Find y:
y = -3/4 * 48/9 = - 4I need help can I have how to do it and some work so I can do it.
Answer:
(-1,-2) OR x = -1 and y = -2
Step-by-step explanation:
y = 3x + 1
y = -x -3
so you would first multiply everything on y = -x -3 by 3 and get 3y = -3x -9
so then you would add 3y = -3x -9 to y = 3x + 1 ( to eliminate the x )which would be 4y = -8 then divide by 4 and get y = -2
then you plug in y = -2 into any one of the equations but to make it easier i am going to plug it into y = -x -3 so now it would be -2 = -x - 3 then, add 2 to both sides which would be 0 = -x -1 then add 1 to both side 1 = -x then multiply both sides by -1 and get x = -1
SO your answer would be (-1,-2) OR x = -1 and y = -2 ( both of them are correct but it depends on what the teacher taught you)
My sister and ate some of a chocolate bar she had 1/4 and I had 5/8 how much of the chocolate bar did we eat
Answer:
7/8
Step-by-step explanation:
1/4 times 2/2 = 2/8. you would have to do this because the only way you can add fractions is if they have the same denominator. so 2/8 + 5/8= 7/8
Answer:
You ate 7/8 of the chocolate bar.
Step-by-step explanation:
First, we need to change 1/4 and 5/8 so that they have the same denominators (bottom numbers).
There's a common multiple of 8.
What you do to the bottom needs to be done to the top.
1 x 8 = 8
1 x 5 = 5
5/8
Your amount of chocolate stays the same.
4 x 2 = 8
1 x 2 = 2
2/8 is how much the sister had,
Finally, add the two fractions together.
2/8 + 5/8 = 7/8
You ate 7/8 of the chocolate bar.
Hope this helps, have a good day! :D
A total feet of snow falls over three days. On the first day, 1/6 of the total snow falls. One the second day, 7/12 of the total snow falls. Complete the table to list the amount of snow of snow, in inches, that falls each day. Use paper to show your thinking. Plzzzzzzzzzzzz help plz
Answer:
If it wants to know the total on day 3, then the answer is 3/12, or 1/4 (fully simplified).
Step-by-step explanation:
1/6 + 7/12 = 3/4
This means that you would need 1/4 more inches of snow. 3/12 is the answer before simplification, and 1/4 is the fully simplified answer.
Please help out, i cant risk failing this test. :(
Which rule maps figure 1 onto figure 2?
A. (x,y)→(x-5, y-11)
B. (x,y)→(x-5, y+11)
C. (x,y)→(x+5, y-11)
D. (x,y)→(x+5, y+11)
Answer:
b
Step-by-step explanation:
just move the shape with cordinantes of b
The rule that maps figure 1 onto figure 2 is B. (x,y)→(x-5, y+11)
What is a function?Function is a type of relation, or rule, that maps one input to specific single output.
In mathematics, a function is an expression, rule, or law that describes the relationship between one variable (the independent variable) and another variable (the dependent variable) (the dependent variable).
If the original function is y = f(x), assuming horizontal axis is input axis and vertical is for outputs, therefore,
Horizontal shift (also called phase shift):
Left shift by c units:
y=f(x+c) (same output, but c units earlier)
Right shift by c units:
y=f(x-c)(same output, but c units late)
The correct option is B.
(x,y)→(x-5, y+11)
Learn more about function here:
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Evaluate the following expressions for x = 2. –9. 2(4 – x) –9. 2(4 – (2)) –9. 2(2) Evaluate the following expression for x = 2. -36. 8 9. 2x.
Answer:
Evaluate the following expressions for x = 2. –9. 2(4 – x) –9. 2(4 – (2)) –9. 2(2)
= -18.4
Evaluate the following expression for x = 2. -36. 8 9. 2x.
= -18.4
Answer:
Both are -18.4
Step-by-step explanation:
