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3 years ago

In a survey, 250 adults and children were asked whether they know how to

Mathematics

2 answers:

Andreas93 [3]3 years ago

8 0

Hello, I'm Eric. I'll be trying my best to assist you on your question today.

0.12 is 12 percent.

We also have the 0.06 percent which would just be 6 percent

We need to add up those percentages to get 18 percent, for the people surveyed that cannot swim would be 18 percent.

Our final answer is D.

Not the right answer or confused? Reply to this question for help.

Enjoy your day - Eric

Artist 52 [7]3 years ago

7 0

Answer:

Step-by-step explanation:

B because .06 + .12 = .18 which is 18% out of 250 people

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At the movie theatre, child admission is $6.30 and adult admission is $9.90 . On Monday, 159 tickets were sold for a total sales

frez [133]

C = child tickets
a = adult tickets

Solve this with the substitution method.
Make two equations:

6.30c + 9.90a = 1,246.50
c + a = 159

Solve for c.
Subtract 9.90a from both sides.

6.30c = 1,246.50 - 9.90a
Divide both sides by 6.30.

c = 197.86 - 1.57a (rounded to hundredths)
Plug c into second equation.

197.86 - 1.57a + a = 159
Combine like terms.

197.86 - 0.57a = 159
Subtract 197.86 from both sides.

-0.57a = -38.86
Divide both sides by -0.57.

a = 68.18
round up to ones: 68

 $\boxed {68~adult~tickets}$ were sold.

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3 years ago

What is the answer i need help 2*2+7+10*8-3=?

Ray Of Light [21]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

Medical students compared two types of knee surgery to determine if patients were able to return to their active lifestyles. The

sweet [91]

Answer:

Option A

Step-by-step explanation:

The response variable is the dependent variable whose variation depends on other variables and in this case it is the type of surgery either total knee replacement or partial knee replacement.

While the explanatory variable which is the independent variable manipulated by the researcher for the given experimental study is the amount of activity the patients were able to do after their respective surgeries.

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3 years ago

How is the distributive property used to expand expressions? provide an example

Pepsi [2]

Yes the distributive property is used to expand expressions, but it is also used to make it simpler.
For an example

3(x+4) + 3(y-8)
This is the same thing as
3x + 12 + 3y -8

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3 years ago

Holly wants to make a frame for a painting. The painting is square and has an area of 225 square inches. a. Write an equation to

nalin [4]

Answer:

a) area = side²

225 in² = side²

side = √225 = 15 inches

b) 15 inches per side x 4 sides x $1.35 per inch = $81.00

Step-by-step explanation:

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2 years ago