Area of a circle: pi r^2
R: radius = half of diameter
Pi: 3.14
^2: squared
3.14^2 * 13 = 530.93
Answer: 1/2
Step-by-step explanation:
B² - 16a + 6
(7)² - 16(1/2) + 5
49 - 8 + 5
49 -13
36
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3b - 2a - 9
3(7) - 2(1/2) - 9
21 -1 - 9
20 - 9
11
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16a - b
16(1/2) - 7
8 - 7
1
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3(7) - 2(1/2) - 9
21 -1 - 9
20 - 9
11
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6(1/2)(7)
3(7)
21
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Answer:
E: x = 13
F: x = 1.5 or 3/2
Step-by-step explanation:
This is for E:
x + 2/3 = 5
All you do is first multiply 5 * 3
and you will get 15
x + 2 = 15
Then you subtract from 15
15 - 2 = 13
So x = 13
This is for F:
10(x - 1) = 5
So all you do is distribute the 100 with x -1
10 * x = 100x
10 * -1 = 100
10x - 10 = 5
Then you add 10 to 15 because the number is -10
5 + 10 = 15
10x = 15
Now you divide by 10 on both sides
10x/10 = 15/10
10x/10 = x
15/10 = 3/2
So the answer for F is 3/2 or 1.5
the price per pound of the second type of the candy is 2.9 .
<u>Step-by-step explanation:</u>
Here we have , After mixing two types of candies, the price became $3.40 per lb. The quantity of the first type of candy was 5/12 of the quantity of the second type. If the price of the first type of candy is $4.60 per lb,We need to find what is the price per pound of the second type of the candy . Let's find out:
The quantity of the first type of candy was 5/12 of the quantity of the second type i.e. Quantity of candy A = 5x quantity of candy B = 12x
We need to calculate the weighted average of the price of candies.
price of mixture = quantity of A (price of A ) + quantity of B (price of B)
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Therefor , the price per pound of the second type of the candy is 2.9 .