Answer:
d
Step-by-step explanation:
Michells aim to swim a total of 23 miles in 4 weeks. The table below shows the number of miles she swam in the first 3 weeks. How many more miles does Michelle have to swim in week 4 to reach her target?
Answer:
c
Step-by-step explanation:
I said so and I did maths
Help me please I'm so stuck lol 15 pts.!!
Answer:
r = 0.1
Step-by-step explanation:
Constant proportionality or slope(rate of change) is found by Y divided by X.
1.4(y) ÷ 14(x) = 0.1(slope)
1.6(y) ÷ 16(x) = 0.1(slope)
2.1(y) ÷ 21(x) = 0.1(slope)
Check Work:
14 x 0.1 = 1.4
16 x 0.1 = 1.6
21 x 0.1 = 2.1
Answer:
1/10.
Step-by-step explanation:
The proportionality equation is given to you: [tex]y = rx[/tex]
Next, plug in the given [tex]x[/tex] and [tex]y[/tex] variables into the equation:
When: [tex]x = 14[/tex] & [tex]y = 1.4[/tex]
[tex]1.4 = r(14)\\1.4 = 14r\\(1.4)/14 = (14r)/14\\1.4/14 = r\\r = 0.1[/tex]
When: [tex]x = 16[/tex] & [tex]y = 1.6[/tex]
[tex]1.6 = r(16)\\1.6 = 16r\\(1.6)/16 = (16r)/16\\r = 1.6/16\\r = 0.1[/tex]
When: [tex]x = 21[/tex] & [tex]y = 2.1[/tex]
[tex]2.1 = r(21)\\[/tex]
[tex]21r = 2.1\\(21r)/21 = (2.1)/21\\r = 2.1/21\\r = 0.1[/tex]
r = 0.1 in all of the given, ∴ 0.1 is your answer. Change the decimal into a fraction:
0.1 = 1/10
1/10 is your answer.
~
Evaluate the expression 2n - 6 if n = 16.
Answer:
[tex]26[/tex]
Step-by-step explanation:
[tex]2n-6[/tex]
Given that:
[tex]n=16[/tex]
To evaluate the expression, we must simply substitute the given value of [tex]n[/tex], which is [tex]16[/tex], for [tex]n[/tex]:
[tex]2(16)-6[/tex]
Multiply:
[tex]32-6[/tex]
Subtract:
[tex]26[/tex]
-
To check your work, simply set the given expression equal to our solution, [tex]26[/tex]:
[tex]2n-6=26[/tex]
Add [tex]6[/tex] to both sides of the equation:
[tex]2n=32[/tex]
Divide both sides of the equation by the coefficient of [tex]n[/tex], which is [tex]2[/tex]:
[tex]n=16[/tex]
Since it matches the given value of [tex]n[/tex], our solution is correct!
Answer:
26
Step-by-step explanation:
This is the answer because:
1) First, we have to substitue the value that stand for n into the equation:
2(16) - 6
2) Next, we have to follow the order of operations in order to find the answer:
1. 2 x 16 = 32
2. 32 - 6 = 26
Therefore, the answer is 26.
Hope this helps! :D
PLEASE HELP!!! The population of a town was 780 in 1970. The population has been growing at a rate of 26% each year. What is the population of the town in the year 1995? Round your answer to the nearest whole number.
Can you help me with these questions on the bottom plz?
Answer:
13) 140
14)180
15)100
Step-by-step explanation:
13) a line is 180 and dgf is 80, the other one is 40, so 120 -180 is 60. add hat to 80, and you get 140
14) a line is 180
15) a line is 180 bgd is 40, dgf is 80, so egb is 60, add 60 and 40, and you get 100
4х – у = 5
3х + y = 9
A table saw is on clearance for 20% off. If the sale price of the table saw is $380, what was the original price? Justify your solution. Round to the nearest cent if necessary.
20% off means it is selling for 80% of the original price ( 100% - 20% =80%)
Divide the sale price by 80% as a decimal:
380/0.80 = 475
The original price was $475
Justify:
Multiply the original price by 20% and subtract:
475 x 0.20 = 95
475-95 = $380 which is the sale price.
Answer:
Step-by-step explanation:
20% off means it is selling for 80% of the original price ( 100% - 20% =80%)
Divide the sale price by 80% as a decimal:
380/0.80 = 475
The original price was $475
Justify:
Multiply the original price by 20% and subtract:
475 x 0.20 = 95
475-95 = $380 which is the sale price.
Select the correct answer.
Consider these functions:
f(x) = x + 1
g(x)=1
Which polynomial is equivalent to (f.g)(x)?
A.
2
I + 1
21 + 2
OB.
oc. 2 + 1
OD.
2
I2 + I
Answer:
2/x+1
Step-by-step explanation:
nghgjffhgfbcggfd
In the first quadrant, you start at (1,3) and move 2 units right What point will you end up on?
Answer:3,3
Step-by-step explanation:
The point on which we will end up on is (3,3).
We are given that;
The starting point (1,3)
Number of units= 2
Now,
Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
To find the point where you end up after moving 2 units right from (1,3), you need to add 2 to the x-coordinate of (1,3) and keep the y-coordinate the same.
This is because moving right along a horizontal line does not change the y-value, but increases the x-value by the amount of units moved.
(1 + 2, 3) = (3, 3)
Therefore, by algebra the answer will be (3,3).
More about the Algebra link is given below.
brainly.com/question/953809
#SPJ2
Is it legal to keep monkeys in a refrigerator in the United States?
Answer:
I don't really know but I think it is.
Step-by-step explanation:
A rectangular page is to contain 36 square inches of print. The margins on each side are 1 inch. Find the dimensions of the page such that the least amount of paper is used.
Given :
A rectangular page is to contain 36 square inches of print.
The margins on each side are 1 inch.
To Find :
The dimensions of the page such that the least amount of paper is used.
Solution :
Let, length and breadth of paper are x and y respectively.
Area is given by :
Area = xy ....1)
xy = 36 inch²
Now, it is given than the margins on each side is 1 inch.
So, area of paper is :
A = ( x + 2 )( y + 2 )
We want area to be minimum.
Putting value of x from 1 , we get :
A = ( 36/y + 2 )( y + 2 )
Now, differentiating above equation and equating with 0 :
[tex]3 - \dfrac{108}{y^2}=0\\\\y = \pm 6[/tex]
Now, we know dimension cannot be negative.
So, y = 6 and x = 6 .
Therefore, length and breadth are 6 and 6 inch respectively.
The length are breadth is x = 6 and y = 6 inch respectively.
Given;
Each rectangular page is to contain 36 square inches of print.
The margins on each side are 1 inch.
We have to find ;
The dimensions of the page such that the least amount of paper is used.
Therefore,
Let, length and breadth of paper are x and y respectively.
Area is given by :
Area = xy
xy = 36 inch²
Now, it is given than the margins on each side is 1 inch.
So, Area of paper is : A = ( x + 2 )( y + 2 )
We want area to be minimum.
Putting value of x from 1 , we get :
A = ( [tex]\frac{36}{y}[/tex] + 2 )( y + 2 )
Now, Differentiating above equation and equating with 0 :
[tex]3 -\frac{108}{y^{2} } = 0[/tex]
[tex]\frac{3y^{2} - 108 }{y^{2} } = 0[/tex]
[tex]3y^{2} - 108 = 0 \\3y^{2} = 108\\y^{2} = \frac{108}{3} \\y^{2} = 36\\y = 6[/tex]
then; xy = 36
6x = 36
x =[tex]\frac{36}{6}[/tex]
x = 6inches
Now, we know dimension cannot be negative.
So, y = 6 and x = 6 .
Therefore, length and breadth are 6 and 6 inch respectively.
For more information about the Area of dimension click the link given below.
https://brainly.in/question/12894735
What was the difference in the starting temperature and the ending temperature
Answer:
You subtract the final temperature from the starting temperature to find the difference. So if something starts at 50 degrees Celsius and finishes at 75 degrees C, then the change in temperature is 75 degrees C – 50 degrees C = 25 degrees C. For decreases in temperature, the result is negative.
Step-by-step explanation: really not sure how to explain but in my understood thats my answer
ABCD is a rectangle, where A (1, 2), B (6, 0), C (10,10) and D (x, y) is unknown. Find the coordinates of the fourth vertex Point D. Verify that ABCD is a rectangle providing evidence related to the sides and angles. 2. Find the perimeter and area
Answer:
So find the what?
Step-by-step explanation:
Which of these units would be best to measure the length of our classroom?
1. meters
2. centimeters
3. liters
4. kilometers
5. millimeters
Answer:
1. meters
Step-by-step explanation:
The smallest unit given in the choice is millimeters. Then comes the centimeters, then meters, and the kilometers.
Liters is used to measure the volume of a liquid. For example we get 1 liters of milk but not 1 kilometers of milk.
The kilometers has a 1000 meters and
1m= 100 cm
1cm = 10mm
The kilometers is quite a large space and usually long distances such as length between 2 towns is measured in kilometers.
The area of the room or length is usually measured in feet but since feet is not given here.
1 feet = 0.3048 m
so the most suitable selection would be meters.
The millimeters is very small. 1 cm has 10 mm. A foot consists of 30.48 cm.
So meters is used.
Max ran 8 miles on Thursday. One mile is equal to 5,280 feet. Which
proportion can be used to determine how many feet, x, Max ran on
Thursday?
Answer:
5280x=y
Step-by-step explanation:
5280(8) = 42240
x^2y-7xy^2 + 5x +y^6
The degree of the polynomial is
Answer:
6
Step-by-step explanation:
What percent is represented by the shaded portion on this 10 × 10 grid? A grid model has 100 squares. 76 squares are shaded. StartFraction 7.5 Over 100 EndFraction percent StartFraction 75 Over 100 EndFraction percent 7.5% 75%
Answer:
either b or d
Step-by-step explanation:
Answer:
75%
Step-by-step explanation:
PLS HELP WILL GIVE BRANLIEST PLUS 15 POINTS
What is 10% of 60? Explain how you calculated your answer
Answer:
6
Step-by-step explanation:
10 percent decimal form = 0.10
60 * 0.10 = 6
Which related equations are in the same fact family as the following equation?
3+6=n
Select ALL correct answers.
A.6+3=n
B.n−3=6
C.3−6=n
D.n−6=3
E.n+6=3
(help )
Answer:
A, B and D
Step-by-step explanation:
Because all of these are true
HELLPPP PLEASE!!!!
What is the meaning of the the point (4, 22)?
and am I wrong for the first one?
Answer:
The meaning of (4,22) is Magi had run 4 mike's in 22.5 mins
Have a nice Day , Hope this helped you I would appreciate it if you could mark my answer brainliest
Answer:
No, you are correct for the first one. The meaning of the point (4, 22) is that Magi took 22 minutes to run 4 miles.
Step-by-step explanation:
(4, 22) is written as (x, y) where x is the number of miles Magi ran and y is the number of minutes Magi took.
Thus, when Magi ran 4 miles, she took 22 minutes.
What are the coordinates of the center and the
length of the radius of the circle whose equation is
(x + 1)² + (y – 5) = 16?
1) (1,-5) and 16
2) (-1,5) and 16
3) (1,-5) and 4
4) (-1,5) and 4
Answer:
I think 3 not sure don't angry if wrong
Plz, Help me with this question.
Answer:
first option
Step-by-step explanation:
Given
area = 15x - 9 ← factor out 3 from each term
= 3(5x - 3)
Thus the dimensions are 3 by (5x - 3)
pls help this is for math ill give a brainly
Answer: The last one - 5 1/3 divided by 1/6
Step-by-step explanation:
since you are trying to figure out how much she runs a day, u divide
Hope this helps :)
Lines A, B, and C show proportional relationships. Which line has a constant of proportionality between y and x of 2/3?
Answer:
Line C
Step-by-step explanation:
slope
Answer:line c
Step-by-step explanation:
John bought an old motor bike for $ 5675 and spent $ 453 on its repair. Then he sold it in $ 7265, find out the profit he made.
Answer:
1137
Step-by-step explanation:
5675+453
6128
Now
7265-6128
1137
does anyone know how to tell the difference between rational and irrational numbers?
Answer:
Rational numbers refers to a number that can be expressed in a ratio of two integers. An irrational number is one which can't be written as a ratio of two integers. Expressed in fraction, where denominator ≠ 0. Cannot be expressed in fraction.
Step-by-step explanation:
done
can I please have help
Answer:
15a+12ac+6ab
Step-by-step explanation:
3a(5 + 4c + 2b)
5*3a = 15a
4c*3a = 12ac
2b*3a = 6ab
Will mark brainliest!
Answer:
1.49103082= 1.49
Step-by-step explanation:
How do I do the work?
