Answer:
sum of angles in a triangle = 180°
180-(90+21)
= 69
pls am I correct
Answer:
y = 22
Step-by-step explanation:
Given
Slope m = (+ 11 / 5) cm/min
If P(10, y)
we can use the relation
11 / 5 = y / 10 ⇒ y = 10*11/5
⇒ y = 22
Given:

First, let's move the -1 to the right side. When we add
, we get
.

Now we can cross multiply, multiply (3n)(8) and (7)(9)

Simplify the left side.

Simplify the right side.

Divide both sides by 24 to isolate n.

Simplify.

3t/4=2p/5 solve for p
p=15t/8
p=1.875 tons of sand