Answer:
75
Step-by-step explanation:
Let x represent the 5th score. Then:
70 + 80 + 85 + 90 + x
---------------------------------- = 80
5
Then:
150 + 175 + x 325 + x
-------------------- = 80 => ------------- = 80
5 5
so that: 325 + x = 400
Thus, x = 75.
If Josh earns a 75 on his 5th quiz, his 5-quiz average will be 80.
12/2=6.
6X0.5=3
so the scale drawing is 3 inches long
10/2=5
5X0.5=2.5
so the width of the scale drawing is 2.5 inches
3+3+2.5+2.5=11
Answer:
86 square inches
86 in^2
Step-by-step explanation:
Base: 3 × 10 = 30
Rectangle Sides: 2.5 × 10 = 25 (×2 = 50)
Triangle Sides: 2 × 3 = 6 (÷2 ×2 = 6)
Add: 30 + 50 + 6 = 86
If the 0 is in the numerator, the value is 0
if the 0 is in the denominator, the value is undefined
so 0/8 = 0
and 3/0 = undefined
