Answer:
A = 1725 ft^2
Step-by-step explanation:
A = <u>a + b</u> * h
2
A = area
a = top
b = base
h = height
A = <u>a + b</u> * h
2
A = <u>65 + 50</u> * 30
2
A = 57.5 * 30
A = 1725 ft^2
Answer:
4
Step-by-step explanation:
This situation has two unknowns - the total number of half dollars and the total number of quarters. Because we have two unknowns, we will write a system of equations with two equations using the two unknowns.
- h+q=31 is an equation representing the total number of coins
- 0.50h+0.25q=11 is an equation representing the total value in money based on the number of coin. 0.50 and 0.25 come from the value of a half dollar and quarter individually.
We write the first equation in terms of q by subtracting it across the equal sign to get h=31-q. We now substitute this for h in the second equation.
0.50(31-q)+0.25q=11
15.5-0.50q+0.25q=11
15.5-0.25q=11
After simplifying, we subtract 15.5 across and divide by the coefficient of q.
-0.25q=-4.5
q=4
We now know of the 31 coins that 4 are quarters.
Answer
42.025
Step-by-step explanation:
8
90.425
- 48.400
= 42.025
You substitute the 9 to an 8
Hope this helps ._.
1/5 - 5/6 = -19/30, so the answer is Y ≤ 19/30
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Hope this helps!
==jding713==
Answer: 3/2y - 5
Step-by-step explanation:
