Answer:
35 girls, 42 boys
Step-by-step explanation:
Guess and check.
Hope this helps
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Answer:
B
Step-by-step explanation:
27 = 3^3
3 = 4x + 1
2 = 4x
x = 1/2
The exact formula for surface area for a rectangular prism is 2lw+2lh+2wh. Where l=length. W=width.h=height.
A.3x+5=65
-5 -5
subtract 5 from 5, subtract 5 from 65 to get 3x=60
B. 3x=60
divide 3x by 3,divide 60 by 3 to get x by itself
x=20
Answer:
252
Step-by-step explanation:
Types of main courses available = 9
Types of drinks offered = 7
Types of deserts = 4
Number of different meals consisting of a main course, a drink and a desert offered
Using the combination rule :
9C1 * 7C1 * 4C1
nCr = n! ÷ (n-r)!r!
So using calculator we obtain :
9 * 7 * 4 = 252
