The answer is 41.25
hope this helps
I'm pretty sure its the 3rd one
Answer:
x=0
Step-by-step explanation:
"y varies directly as x," means that when one increases/decreases, the other does the same thing
so when y decreses by 4 from 16 to 12, x decreases by 4 too
4-4=0
Step-by-step explanation:
by Pythagoras :
H²= B²+ P²
(7+x)²= x²+ 9²
49 + 14x + x² = x²+81
14x = x² -x²+81 - 49
14x = 32
x = 32/14 = 16/7 = 2.28 cm = 2.30 cm
<em>plz </em><em>mark</em><em> my</em><em> answer</em><em> as</em><em> brainlist</em><em> plzzzz</em><em>.</em>
<em>hope</em><em> this</em><em> will</em><em> be</em><em> helpful</em><em> to</em><em> you</em><em> </em><em>.</em>
Answer:
y = 52x + 400
Step-by-step explanation:
A linear model has the form y = mx + b
There are two variables: the <em>volume (y) of water </em>and the <em>number (x) of minutes</em> the pool has been filling. The volume of water depends on how long the pool is filling.
m = (y₂-y₁)/(x₂ -x₁)
x₁ = 0; y₁ = 400
x₂ = 8; y₂ = 816
m = (816 - 400)/(8 - 0)
m = 416/8
m = 52 gal/min
The initial value (b) is the volume at time zero.
b = 400 gal
The linear function is
y = 52x + 400
===============
<em>Volume after 20 min
</em>
y = 52×20 + 400
y = 1040 + 400
y = 1440 gal
The pool will contain 1440 gal in 20 min.