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Katarina [22]
2 years ago
6

Carlos made 32 of his 40 serve attempts over the net. What percent of his

Mathematics
1 answer:
ddd [48]2 years ago
5 0
80% because you would do 32 divided by 40 *100 to get 80%
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The sum of 45% of a number and 55% of the same number is 200. what is the number?
Ymorist [56]

.45x+.55x=200
Combine like terms
1x=200
So x is 100

Or you can do 45%+55%=100%
And 100% of 200 is 200
8 0
3 years ago
What is -7+p=3 please give me a step by step explanation.
ozzi

Answer:

p=10

Step-by-step explanation:

1.add 7 on each side to cancel -7

2.add 7 and 3 together to get ten

5 0
3 years ago
Read 2 more answers
How many gallons of a 20% acid solution should be mixed with 30 gallons of a 40% solution, to obtain a mixture of 30% acid solut
Alexeev081 [22]

Answer:

30 gallons of 20% acid solution should be mixed.

Step-by-step explanation:

Let x gallons of a 20% acid solution was mixed with 30 gallons of a 40% solution, to obtain a mixture of 30% acid solution.

Therefore, final volume of the solution will be (x + 30) gallons.

Now concept to solve this question is

20%.(x) + 40%.(30) = 30%.(x + 30)

0.20(x) + 0.40(30) = 0.30(x + 30)

0.20x + 12 = 0.30x + 9

0.30x - 0.20x = 12 - 9

.10x = 3

x = \frac{3}{0.1}

x = 30 gallons

Therefore, 30 gallons of the 20% acid solution should be mixed.

4 0
3 years ago
Find y if the line through (-2,4) and (6,y) has a slope of -2
Mnenie [13.5K]
-2=y-4/6+2
-16=y-4
Y=-12
5 0
2 years ago
Please help. Calculate the area of the shaded region in each figure use 3.14 for π and round to the nearest 10th if necessary​
denpristay [2]
Answer: See below

Explanation:

Find the area of circle:

A = 3.14 x 5^2
A = 3.14 x 25
A = 78.5 cm^2

Find the area of rectangle:

A = 3 x 4
A = 12

Find area of shaded region:

A(shaded) = A(circle) - A(rectangle)
A = 78.5 - 12 = 66.5 cm^2
5 0
2 years ago
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