Answer:
6
Step-by-step explanation:
H is proportionate to L, meaning that they can be represented as a ratio, 
.
If we know that L in the same ratio is 20, we can set these ratio's equal to each other to find H.
.
To find x, we can cross multiply.
So 
, meaning that when 
, 
.
Hope this helped!
Hello there!
4x² = 100
We wanna start by dividing both sides by 4
4x²/4 = 100/4
x² = 25
Now we can take square root
x = +/-√25
x = 5 or x = -5
As always, it is my pleasure to help students like you!
24 cents.
11/66= 6
4/x= 6
4•6= 24
(proportions)
hope this is clear :))
Answer:
17
Step-by-step explanation:
given
2f + 4f + 2 - 3 ← simplify by collecting like terms
= 6f - 1 ← substitute f = 3 into the expression
= (6 × 3) - 1 = 18 - 1 = 17
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