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3 years ago

HELP PLS HELP!!! Do parts a and b

Mathematics

2 answers:

Crank3 years ago

7 0

Those are alternate interior angles and are equal. B.5x=80 x=16.

hammer [34]3 years ago

3 0

Part A should be Acute, and Acute

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25% of what number is 15. Can u please explain how you solved it. Thanks :)

Ilya [14]

60.
let x be the number you're trying to solve.
(x/100)25 = 15
x/4 = 15
x = 15(4)
x = 60

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3 years ago

A fitness club requires a one -time free of $100 and dies of $20 every month .write an expression for the total cost of membersh

nydimaria [60]

The expression would be 20n + 100.

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2 years ago

Read 2 more answers

For 98 points:I just need this

svp [43]

Answer:

1. You can tell because every y value divided by its corresponding 3 value is 1/3, except 0 because 0 divided by 0 is 0.

2. Samuel is incorrect because when his sister's age is divided by his age, it differs every year.

(Example: 5/10 ≠ 10/15)

7 0

2 years ago

What is the common ratio of the geometric sequence 16, 24, 36, 54, ...? 1 8

timurjin [86]

The common ratio in the geometric sequences 2
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5 0

2 years ago

skelet666 [1.2K]

Answer:

option D. 126 cm

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

In this problem

Triangles PQR and XYZ are similar by AA Similarity Theorem

$\frac{XY}{PQ}=\frac{YZ}{QR}=\frac{XZ}{PR}$

Let

z ---> the scale factor

$z=\frac{XY}{PQ}$

substitute the given values

$z=\frac{30}{5}=6$

step 2

Find the perimeter of triangle XYZ

we know that

If two figures are similar, then the ratio of its perimeters is equal to the scale factor

Let

z ----> the scale factor

p_1 ----> the perimeter of triangle XYZ

p_2 ---> the perimeter of triangle PQR

$z=\frac{p_1}{p_2}$

The perimeter of triangle PQR is

$p_2=5+10+6=21\ cm$

we have

$z=6\\p_2=21\ cm$

substitute

$6=\frac{p_1}{21}$

$p_1=6(21)=126\ cm$

therefore

The perimeter of triangle XYZ is 126 cm

5 0

3 years ago