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andrey2020 [161]
3 years ago
10

This is Simple Interest Ration and percent 7 grade please help

Mathematics
1 answer:
Scrat [10]3 years ago
3 0
The total to be paid is 909.5.
You must do 7% of 850 which is 59.5 and add it to 850 which is 909.5
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If the sales tax rate is 7.25% in California, then how much tax should a merchant charge in San Francisco for the sale of a $15
Semmy [17]
$15 x .0725 = 1.0875 which we have to round to $1.09
Notice how I changed the  7.25% to a decimal .0725 by moving it back two places.
7 0
3 years ago
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Solve 3/5=8/y. Round to the nearest tenth. 15.2 9.8 13.3 18.8
Sidana [21]
3/5 = 3/y
40 = 3y
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4 0
3 years ago
The surface area of a sphere is 576pi square units. Which choice represents the volume of the sphere?
Leona [35]

Answer:

\large\boxed{V=2304\pi}

Step-by-step explanation:

The formula of a surface area of a sphere:

S.A.=4\pi R^2

R - radius

We have

S.A.=576\pi

Substitute and solve for R:

4\pi R^2=576\pi         <em>divide both sides by π</em>

4R^2=576          <em>divide both sides by 4</em>

R^2=144\to R=\sqrt{144}\\\\R=12

The formula of a volume of a sphere:

V+\dfrac{4}{3}\pi R^3

Substitute:

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3 0
3 years ago
Z is..? The problem is attached as a png!
VikaD [51]

Answer:

Step-by-step explanation:

What i would do is multiply both sides by 2z + 1

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5 0
3 years ago
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Find the cost per visit to the nearest cent: Health and Heart Club, $259 per year, 3 visits per week. a. $1.66 b. $7.19 c. $156
vagabundo [1.1K]

Answer:

a. $1.66

Step-by-step explanation:

We have been given that Health and Heart Club charges $259 per year. A person has 3 visits per week. We are asked to find the cost of per visit to Health and Heart Club.

We know that there are 52 weeks in one year. So total visits in one year would be 3 times 52 that 156 visits.

Now, we will divide total cost by 156 to find cost per visit.

\text{Cost per visit}=\frac{\$259}{156}

\text{Cost per visit}=\$1.660256

Rounding to nearest hundredths, we will get:

\text{Cost per visit}\approx \$1.66

Therefore, the cost per visit is $1.66 and option 'a' is the correct choice.

5 0
3 years ago
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