Answer:
let the number be y
4(y-7)=48
y-7=48/4
y-7=12
y=12+7=19
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Answer:
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Step-by-step explanation:
Answer:21
Step-by-step explanation:12 times three is 36 and 7 times 3 is 21
Answer:
The expression of h as function of x is h = 
Step-by-step explanation:
Given as :
The distance of blimp (AB) = 5500 feet
The slanted distance to the pagoda (BC) = d feet
The horizontal distance (AC) = h
Let the angle made between slanted distance and horizontal distance be Ф
So , cos Ф =
= 
And sin Ф =
= 
∵, cos²Ф = 1 - sin²Ф
So,
= 
Or,
=
Or, h² = d² - 5500²
∴ h = 
Or, h = 
Hence The expression of h as function of x is h =
Answer
1. -48v-5/45 2.44-r/2 3. x=2