Answer:
27+63=90
9(3+7) is the same as 27+ 63
distance left to run = total distance - distance already run
= 3 miles - (13/7) miles
= 21/7 miles - 13/7 miles = 8/7 miles
Answer:
11.5 m
Step-by-step explanation:
This problem involves distance, which is a positive quantity in every case.
From the 10 m platform to water surface: 10 m
From water surface to a depth of 1.5 m: 1.5 m
Total distance traveled: 10 m + 1.5 m = 11.5 m
Answer:
75000
Step-by-step explanation:
We can use ratios to solve. Put the scale length over the real length
1 15
------------ = ----------------
5000 x
Using cross products
1x = 15*5000
x =75000
Answer:
Both methods give 1/(12x + 32)
Step-by-step explanation:
Given 1/4(x + 2x + 16 - 8)
First Method.
Summing the like terms of the quantities in the denominator we are building, then multipying the root by 4.
Adding like terms in the denominator
1/4(x + 2x + 16 - 8) = 1/4(3x + 8)
Multiply denominator byv4
= 1/(12x + 32)
Second Method.
Multiply the quantities in the denominator by 4, and add the like terms together.
Multiplying denominator by 4.
1/4(x + 2x + 16 - 8) = 1/(4x + 8x + 64 - 32)
Adding like terms in denominator.
= 1/(12x + 32)