Answer:
a
Step-by-step explanation:
just did it
B is the answer
the formula is :
which r stands for radius
and h stands for height
the diameter is 16
so the radius is
hope you understand it
2 sides are 6 x 5, 6 x 5 = 30, 30 x 2 = 60
2 sides are 4 x 5, 4 x 5 = 20, 20 x 2 = 40
2 sides are 6 x 4, 6 x 4 = 24, 24 x 2 = 48
total = 60 +40 + 48 = 148 square inches
Answer:
15 nickels and 8 dimes
Step-by-step explanation:
Create a system of equations where d is the number of dimes and n is the number of nickels:
0.1d + 0.05n = 1.55
n = d + 7
Solve with substitution by plugging in d + 7 as n:
0.1d + 0.05(d + 7) = 1.55
0.1d + 0.05d + 0.35= 1.55
0.15d + 0.35 = 1.55
0.15d= 1.2
d = 8
Plug in 8 as d to find n:
n = d + 7
n = 8 + 7
n = 15
So, there are 15 nickels and 8 dimes
Answer:
x = 19
Step-by-step explanation:
3x - 3 = [6 (x - 10)]
3x - 3 = 6x - 60
3x - 6x = - 60 + 3
- 3x = - 57
- x = - 57/3
- x = - 19
x = 19