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blagie [28]
3 years ago
6

harmaine spent a total of $20 at the grocery store. Of this amount, $9 she spent on fruit. What percentage of the total did she

spend on fruit?
Mathematics
1 answer:
zheka24 [161]3 years ago
8 0

Answer:

45%

Step-by-step explanation:

First, let's set up a fraction of how much money she spent for fruit out of the total amount of money she spent.

\frac{9}{20}

For a percentage, we need a fraction out of 100. To do this, we can multiply  the fraction by 5/5 (5*20=100). Notice we can only do this since 5/5 is equivalent to 1, so you are technically multiplying the fraction by 1.

\frac{9}{20}*\frac{5}{5}=\frac{45}{100}

A percentage is just the numerator of a number over 100 therefore it is equal to...

45%

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7 0
3 years ago
Can someone answer these??
hoa [83]

Use the substitution method

Answers :

g(x)= -3x+1

a. g(10)= -3(10)+1

Mutiply first = -30

-30+1= -29

<em>g(10)= -29</em>

b. g(-2)= -3(-2)+1

Negative sign and negative sign = positive sign

-3(-2)= 6

6+1= 7

<em>g(-2)= 7</em>

a.

f(x)=x^2+7

f(3)= 3^ 2+7

3*3 because of the exponent. 3*3= 9

9+7= 16

<em>f(3)= 16</em>

d.

f(a)= a^2+7

a*a= a^2

a^2+7

<em>f(a)= a^2+7</em>

7 0
3 years ago
Alex is paid $30/hr at full rate, and $20/hr at a reduced rate. The hours of work are paid at a ratio of 2:1, full rate : reduce
Roman55 [17]

Answer:

  $106.67

Step-by-step explanation:

Using the example, for 3 hours work, Alex would be paid ...

  (2 hr)($30/hr) +(1 hr)($20/hr) = $60 +$20 = $80

At the same rate of pay, for 4 hours work, the pay would be ...

  pay/(4 hr) = $80/(3 hr)

  pay = $80(4/3) ≈ $106.67

Alex's pay for 4 hours of work is $106.67.

4 0
4 years ago
Easy 5th grade math help me :&gt;
mariarad [96]

Answer:

52

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is the produc in scientific notation?
arlik [135]

Answer:

It's either 35 x10^(-13) or 3.5 x10^(-13)

Step-by-step explanation:

35 x 10^(-13) = 3•5 x 10 x 10^(-13)

3•5 x 10 x 10^(-13) = 3•5 x 10^(-12)

Hope I'm correct

8 0
3 years ago
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