8. What expression is equivalent to 3y – 21?

Mathematics

1 answer:

disa [49]3 years ago

3 0

3(y-7)

use distributive property

You might be interested in

What is the volume of the cone?

Ne4ueva [31]

Volume = 3.14xradius squared x height so it’s 3.14 x 6x6 x8 = 904.32

6 0

2 years ago

Which sentence states the author’s point of view of microloans?

irina [24]

Answer:

Step-by-step explanation:

It is right

5 0

3 years ago

How Would I Find The Answer ?

jek_recluse [69]

Answer: B. 34°

<u>Step-by-step explanation:</u>

∠RQS + ∠SQT = ∠RQT

$\bigg(\dfrac{1}{2}x+4\bigg)+\bigg(\dfrac{3}{4}x-6\bigg)=2x-47\\\\\\.\qquad\qquad\qquad\dfrac{5}{4}x-2=2x-47\\\\\\.\qquad\qquad\qquad\quad -2=\dfrac{3}{4}x-47\\\\\\.\qquad\qquad\qquad\qquad 45=\dfrac{3}{4}x\\\\\\.\qquad\qquad\qquad\qquad 180=3x\\\\\\.\qquad\qquad\qquad\qquad 60=x$

$\angle RQS=\dfrac{1}{2}x+4\\\\.\qquad=\dfrac{1}{2}(60)+4\\\\.\qquad=30+4\\\\.\qquad=34$

7 0

3 years ago

Pensé dos números. Si los sumo obtengo 20. Si al doble del primer número le sumo 35 obtengo el segundo. ¿ qué número pensé?

SpyIntel [72]

For this case, the first thing we must do is define variables:
x: first number
y: second number
We now write the system of equations:
x + y = 20
y = 2x + 35
Solving the system we have:
x = -5
y = 25
Answer:
The numbers are:
x = -5
y = 25

4 0

3 years ago

Jake went on a riverboat tour. After returning from the tour, he was curious to know the speed at which the boat was going. Duri

atroni [7]

I'm sorry I'm too lazy to read all of that. However, I did get the main point. The river was going at 3 mph. Since he wanted to travel 10 miles upstream and downstream, you would have to subtract 20 by 3. This would mean he was going at a speed of 17 mph.

4 0

3 years ago