Answer:
x+y=28
70x+140y=3360
8 cats, 20 dogs were sold
Step-by-step explanation:
Let x=cats y=dogs
We know that a total of 28 pets were sold which means that
x+y=28
We also know that they made 3360 which means that
70x+140y=3360
It doesn't really say if you need to solve this but I will anyways
We use the first equation (x+y=28) and subtract 28 and y from both sides to get
x-28= -y we can then divide both sides by -1 so y can be a positive
-x+28=y
This is what y equals in terms of x and so we can plug this in for y in the second equation
70x+140(-x+28)=3360
Distribute the 140 and get
70x-140x+3920=3360
Add like terms and subtract 3920 to get
-70x=-560
divide both sides by -70 and get
x=8
We now know that 8 cats were sold and can plug this value into any equation to solve for y ( I will be using the first one because that's easiest)
8+y=28
subtract 8 and get
y=20
A system of equations that matches the situation is:
1) d + c = 28.................Equation 1
2)140d + 70c = 3360............Equation 2
This question has to do with Algebraic equations.
Let's represent
Number of dogs = d
Number of cats = c
A pet store is selling dogs for $140 and cats for $70. If 28 pets were sold and they made $3,360.
We have two algebraic systems of equations for the above statements
1) d + c = 28.................Equation 1
2) $140 x d + $70 x c = $3,360
140d + 70c = 3360............Equation 2
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The quotient of 2 and x is greater than 4\
Answer:
7
Step-by-step explanation:
Answer:
x is greater that 8
Step-by-step explanation:
this is because if the quotient of 2 and x has to be greater that 4 then 2 divided by 8 (8 being x) is 4 so anything substituting x has to be greater that 8.
1a) Sara sells a car that was priced at $8,500.00. If she makes a commission of 6.5%, how much will she make? *
Answer:
$552.50
Step-by-step explanation:
To find how much she will make, find 6.5% of 8500
8500(0.065)
= 552.5
So, she will make $552.50
Answer:
$552.50
Step-by-step explanation:
The formula we'll use for this is the simple interest formula, or:
[tex]I=P*R[/tex]
Where:
P is the principal amount, $8500.00.
R is the interest rate, 6.5% per year, or in decimal form, 6.5/100=0.065.
To find the simple interest, we multiply 8500 × 0.065 to get that:
The interest is: $552.50
In which set of points is y a function of x? A. {(1, -2), (0, 1), (1, 1), (1, 2)} B.{(1, 2), (0, 1), (1, 2), (1, 1)} C.{(2, 1), (0, 1), (1, 0), (2, 1)} D.{2, 2), (1, 1), (0, 1), (-1, -1)}
Answer:
D
Step-by-step explanation:
There is no repeated x
The required set of points is y a function of x is C.{(2, 1), (0, 1), (1, 0), (2, 1)}. Option C is correct.
What is set?Sets are an orderly collection of items in mathematics that can be expressed in set-builder or roster form.
A function is a set of ordered pairs where each value of x has only one corresponding value of y. In other words, for a function, there can be only one value of y for each value of x.
So, among the sets of points given, set D, A, and C is not a function of x because the value x=1 has two corresponding values of y.
Therefore, the set of points in which y is a function of x is set C.{(2, 1), (0, 1), (1, 0), (2, 1)} because, for each value of x, there is only one corresponding value of y.
Learn more about sets here:
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Fill in the blanks to complete the steps of this word problem: Moby can use his jetpack to travel 240 miles in 4 hours. How far can he travel in 10 hours?
Answer:
Well 240 divided by 4 equals 60 which is how many miles he can travel in 1 hour.
Step-by-step explanation:
So 60 multiplied by 10 equals 600.
That means Moby can travel 600 miles on his jetpack in 10 hours
Hope this helps :)
In triangle bcd if bc =bd angle b = 13x-35 angle c =5x-19 and angled d = 2x+14 find x and the measure of each angle
Answer:
<b = 108 degrees
<c = 36 degrees
<d = 36 degrees
Step-by-step explanation:
The sum of angle in a triangle is 180 degrees
Hence <b + <c + <d = 180
13x-35 + 5x - 19 + 2x + 14 = 180
13x+5x+2x-35-19+14 = 180
20x-40 = 180
20x = 180 + 40
20 x = 220
x = 220/20
x = 11
Get <b
<b = 13x-35
<b = 13(11) - 35
<b = 143-35
<b = 108 degrees
Get <c
c =5x-19
<c = 5(11)-19
<c = 55-19
<c = 36degrees
Get <d
<d = 2x+14
<d = 2(11) + 14
<d = 22+14
<d = 36 degrees
What is the value of z?
Answer:
68°
Step-by-step explanation:
Every figure must sum 180°(Sides-2) degrees
Example: For a triangle (3 sides) 180°(3-2) => 180°(1) =>180°
In this case: 5 sides 180°(5-2) => 540°
So all the angles (5) must sum 540°
Mathematically expressed as:
[tex](119)+(z)+(2z)+(70)+(2z)+(11)=540\\119+z+2z+70+2z+11=540\\200+5z=540\\5z=540-200\\5z=340\\z=\frac{340}{5}\\z=68'[/tex]
Lets see changing every Z by 68...
119+68+2(68)+70+2(68)+11
119+68+136+70+136+11=540°
please help its math will mark brainliest
Answer:
11 yards.
Step-by-step explanation:
4 + 5 + 2 = 11
Hope this helps : )
Answer:
19, 360
Step-by-step explanation:
1 mile = 1760
1760 × 11 = 19360
Which description is paired with its correct expression?
Four less than the quotient of a number cubed and seven 4 - n3/7 + 3
Five times the difference of a number squared and six 5(6 - n2)
Nine more than the quotient of six and a number cubed decreased by 4 9 + n3/6 - 4
Twice the difference of nine and a number squared 2(9 - n2)
I think it’s D
Please help
Answer:
D.
Step-by-step explanation:
Hi there! You’re correct.
Twice the difference of nine and a number squared would look like
[tex]2(9-n^2)[/tex]
I hope this helped! :)
There are 32 females cast in the school play. The ratio of male roles to female roles is 3:8. Therefore, there are males cast in the school play.
Answer:
12
Step-by-step explanation:
There are 32 female casts in a school play
The ratio of male to the female role is 3:8
Therefore the number of male casts in the school play can be calculated as follows
3/8= x/32
Cross multiply
8x = 32×3
8x= 96
x= 96/8
= 12
Hence there are 12 male casts in the school play
Rectangle ABCD is shown on the coordinate grid below.
Which sequence of reflections will map rectangle ABCD onto itself?
A. a reflection over the −axis followed by a reflection over the −axis
B. a reflection over the −axis followed by another reflection over the −axis
C. a reflection over the line = 2 followed by a reflection over the line = 2
D. a reflection over the line = 4 followed by a reflection over the line = −4
Answer:
Step-by-step explanation:
It’s B I did the test
Option {C} : a reflection over the y - axis followed by another reflection over the y - axis is the correct alternative of the given ones.
What is reflection of graph?Reflections of graphs involve reflecting a graph over a specific line.Reflecting functions are functions whose graphs are reflections of each otherGiven is a Rectangle ABCD as shown on the coordinate grid.
In order to map the rectangle ABCD onto itself, we will reflect it over the y − axis followed by another reflection over the same y − axis.
Therefore, option {C} : a reflection over the y - axis followed by another reflection over the y - axis is the correct alternative of the given ones.
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Consider the expression below. 26 ÷ 10 3
Answer:
2.5
Step-by-step explanation:
if rounded would be 3
Plz help! I will do anything
Oliver streams movies through a company that charges $4.99 per month and $1.99 per
movie, m. Write an equation to represent the total cost, t, per month.
Dependent variable:
Independent variable:
Equation:
Use your equation to determine the monthly cost if Oliver watched 5 movies.
Answer:
4.99 + 1.99m = T. Dependent Variable = T (Total Cost), Independent Variable = M (Movies) Now, for the equation we have to input 5 for the m because he watched 5 movies. So, 4.99 + 1.99(5) = T Well, 1.99 x 5 is 9.95 so our next step is this 4.99 + 9.95 = T and that added up together would be 14.94 dollars. $14.94 = T
Step-by-step explanation: I hope that this helps you!
I need help
With this question ASAP PLS
There are 47 photos in the blue album the blue album has 32 more photos than the red album. How many photos are in the blue album?
Answer:
15
Step-by-step explanation:
There are 47 photos in the blue album
The blue album has 32 nore photos than the red album
Therefore the number of photos in the red album can be calculated as follows
= 47-32
= 15
Hence there are 15 photos in the red album
PLEASE QUICKLY!
find x:
-5x^2=1.8
Answer:
The answer and explanation is on the picture.
Tim has 3 blue shirts and 2 red shirts in a drawer. He randomly picks one shirt, puts it back, and then picks another shirt. What is the
probability that Tim picked up a blue shirt first and then a red shirt?
A. 5/25
B. 6/10
C. 5/10
D. 6/25
Answer:
D-6/25
Step-by-step explanation:
Will give brainliest ty
Answer:
B
Step-by-step explanation:
Sorry if it is incorrect
Look at the diagram. Which of the following is another name 22?
с.
А
D
1/2
B
Answer:
i think another name for angel 2 is CBD or DBC i ain't sure
Step-by-step explanation:
pls help me!! thank you!!
Answer:
4
Step-by-step explanation:
Solve x and y 3x-4y=18,9x+2y=12
Answer:
please follow me
stay safe and healthy
6[x+1]=-2[3x+9] please show work will give brainlist
Answer:
Step-by-step explanation:
6(x+1) = -2(3x+9)
6x+6 = -6x-18
6x+6x+6-6 = -6x+6x-18-6
12x=-24
x= -2
Find the value of X. Giving brainliest if correct!
Answer:
X=24
Step-by-step explanation:
I did this when I was a freshman and I was always really good at it
A peep increased by 25% is a pop. A pop decreased by 40% is a slug, and a slug increased by 100% is a slap. What percent of a peep is a slap
Answer:
A slap is 120% of a peep
Step-by-step explanation:
We shall make use of values here
Let a peep be value of 100
A pop is 100 + 25% of 100
= 100 + 0.25(100) = 125
Pop = 125
A slug is pop deceased by 40%
= 125 - (40% of 125)
= 125-(50) = 75
A slap is a slug increased by 100%
= 75 + (100% of 75)
= 75 + 75 = 150
So now, we want to calculate percent of peep is a slap
That will be;
150/125 * 100%
= 120%
in a congregation of 300 members, 130 have hymn books, 90 have bibles and 100 have neither. How many have both hymn book and bible
Answer:
20 members have both hymn books and bibles.
Step-by-step explanation:
Sets
There are two sets of people. One is made up of members who have hymn books, the other one is made up of members who have bibles. From the total members of the congregation, some have neither.
The congregation has 300 members out of which 100 don't have bibles either hymn books. This means that 300-100= 200 members have bibles or hymn books. Since 130 have hymns books and 90 have bibles, there are 90+130=220 members who have either.
The difference of 220 - 200 = 20 is the number of members who have both hymn books and bibles.
I'm solving for UW. And we're using pythagorean theorem.
Answer:
6^2+x^2 = 9^2x^2 = 9^2-6^2 = 81-36 = 45
x = √45
UW = √45 ft
What Is the area of the trlangle? Enter the answer in the box.
square units
Answer: right
Step-by-step explanation:
A cement mixer can hold up to 681 kilograms of cement. How many 100-pound bags of cement can be put into the mixer at one time?
Answer:
15 bags
Step-by-step explanation:
Given that :
Capacity of mixer = 681 kg
Pounds per bag of cement = 100 pounds
Number of bags mixer can hold =?
Converting the capacity of mixer to pounds :
1kg = 2.205 pounds
681 kg = (681 * 2.205) pounds = 1501.605 pounds
Number of 100 pound bag of cement :
Capacity in pounds / 100 pounds
1501.605 / 100
= 15.016
= 15 bags of 100 pound cement
Can someone help me plz I will give the brainliest I promise
Answer:
He should play Pacman instead
What is the slope of line a?
• -4
• 4
• -1/4
• 1/4
Answer:
-1/4 is the correct answer
Step-by-step explanation:
you’re going down 1 and over 4 :)
