Answer:
28.26658805 (I included every digit in case your teacher needs you to round)
Step-by-step explanation:
In order to find x, we need to isolate x by subtracting 15^2 and taking the square root of both sides.
Thus, we have:
Answer:
You have to use 20 pounds of blackberries
Step-by-step explanation:
To start, we are going to make two equations, one that represents the amount of pounds and another that represents the prices
a = blueberries
m = blackberries
a + m = 30
a * 2$ + m * $3.50 = 30 * $3
let's clear in the first equation
a + m = 30
a = 30 - m
we replace in the second equation a by (30 - m)
a * $2 + m * $3.50 = 30 * $3
(30 - m) * 2 + m * 3.50 = 30 * 3
60 - 2m + 3.5m = 90
-2m + 3.5m = 90 - 60
1.5m = 30
m = 30/1.5
m = 20
we replace m with its value in the first equation
a = 30 - m
a = 30 - 20
a = 10
15 - 2m = how much she has left.
so 15 minus 2 times the cost per book will tell you how much she has left.
One yard is 0.0005 miles,
548 * 0.0005 = 0.274,
So the answer is 0.274 miles.
Hope this helps.
Answer:
Step-by-step explanation:
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