Answer:
60
Step-by-step explanation:
Sum the parts of the ratio, 5 + 9 + 13 = 27 parts
Divide the amount of concrete by 27 to find the value of one part of the ratio.
324 ÷ 27 = 12 ← value of 1 part of the ratio , thus
5 parts = 5 × 12 = 60 ← cement
9 parts = 9 × 12 = 108 ← sand
13 parts = 13 × 12 = 156 ← gravel
Answer:
The answer is 4.
Step-by-step explanation:
100 x -5to the second power which is 25 so 100/25 which is 4.
-7 replaces the t so it would be
w(-7) = -2(-7)+1
= 14+1
= 15
If you mean 1637.984 then it is 1638.
Answer:
Step-by-step explanation: Let x = number of $5 bills
Let y = number of $10 bills
Use these variables to set up equations to represent total deposit and number of bills.
x + y = 38 eq1 ----> total number of bills
5x + 10y = 220 eq2 -----> total deposit
