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AfilCa [17]
3 years ago
15

Brooke has to set up 70 chairs equal rows for the class talent show. but there is not room for more than 20 rows. what are the p

ossible numbers of rows that Brooke could set up
Mathematics
1 answer:
makkiz [27]3 years ago
8 0
7 rows of 10; 10 rows of 7; 5 rows of 14; or 14 rows of 5
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Find the solution of x and y
Hunter-Best [27]

Answer:

x = 1.25, y = 1.75

Step-by-step explanation:

The smaller and larger triangles are similar triangles. (the 2 triangles have the same angles).

We know that the smaller triangle has length 8 for it's bottom side when the larger triangle has length 10. This means the scale factor between the 2 is 10 / 8 which is 1.25. Therefore by multiplying the side lengths of the smaller triangle by 1.25 we get the side lengths of the larger triangle.

5 * 1.25 = 6.25

7 * 1.25 = 8.75

However we don't want the whole side lengths we want x and y, We need to subtract 5 and 7 respectively from the lengths of the larger triangles.

Therefore the lengths must be: 6.25 - 5 = 1.25

and 8.75 - 7 = 1.75

Therefore x and y equal 1.25 and 1.75

5 0
3 years ago
Which of the coordinate points below will fall on a line where the constant of proportionality is 1/4? Select all that apply. A)
kompoz [17]

Answer:

A) (4,1)  C) (12,3) D) (20,5)

Step-by-step explanation:

Required

Which has a constant of proportionality of 1/4

To solve this, we make use of:

y = kx

Where k is the constant of proportionality.

Solve for x

k = y/x

<u>Testing the given options</u>

A) (4,1)

k = y/x

k =1/4

B) (8,12)

k = y/x

k =12/8

k =3/2

C) (12,3)

k = y/x

k = 3/12

k = 1/4

D) (20,5)

k = y/x

k = 5/20

k = 1/4

E) (12,6)

k = y/x

k =6/12

k =1/2

4 0
3 years ago
Joel wrote a number that is 100 times more than the 6 in 4,586,909. Which numbers below could Joel have written. Circle all that
Drupady [299]
In the number 4,586,909, the 6 is in the 4th place to the left of the decimal point which is the thousands place.
For a six to be 100 times more than in the thousands place, it must be in the hundred-thousands place. That is the 6th place to the left of the decimal point.
The answers are B. and D.
3 0
4 years ago
Danny had $116 to spend on nine books. After buying them he had $72 left. How much did each book cost?
alexdok [17]
$4.89
- First subtract 116-72
-then divide that answer by nine
-round 
8 0
3 years ago
Read 2 more answers
SOMEONE, PLEASE HELP ME!!!!!!
wlad13 [49]

Answer:

B

Step-by-step explanation:

a is base edge

h is height or To find the volume of a square-based pyramid, use the formula V = A(h/3), where V is the volume and A is the area of the base.

8 0
4 years ago
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