If you multiply 399 and 0.2 (because it's 0.2 out of 1) then you get 79.8. So you subtract 79.8 from 299 and get 319.2 dollars. I hope this helps! Please mark brainliest! <3

8 0

3 years ago

Read 2 more answers

Sonja [21]

Answer:

Volume: 1135.82 yd³

Surface Area: 657.12 yd²

Step-by-step explanation:

V = whl

12.2 · 9.8 · 9.5

1135.82

A = 2(wl + hl + hw)

2 · (12.2 · 9.5 + 9.8 · 9.5 + 9.8 · 12.2)

657.12

3 0

3 years ago

Help me plz find the value of x for which QR is parallel to RS

erik [133]

Given:

QR is parallel to RS.

To find:

The value of x.

Solution:

In the given figure, we have,

$PR=12$

$RT=2x-2
$

$QS=21$

$ST=3x-1$

Using basic proportionality theorem (BPT), we get

$\dfrac{PR}{RT}=\dfrac{QS}{ST}$

$\dfrac{12}{2x-2}=\dfrac{21}{3x-1}$

On cross multiplication, we get

$12(3x-1)=21(2x-2)$

$36x-12=42x-42$

$36x-42x=12-42$

$-6x=-30$

Divide both sides by -6.

$x=\dfrac{-30}{-6}$

$x=5$

Therefore, the value of x is 5.

6 0

3 years ago