Which is the best deal?
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2 points
$25 for 5 pizzas
$32.48 for 7 pizza
$27.45 for 3 pizzas
$28.74 for 4 pizzas
To find out how much you will make in 8 hours, we can set up a proportion using the information given.
Let x be the amount you will make in 8 hours.
Using the proportion, we have:
5 hours / $42.50 = 8 hours / x
Cross multiplying, we get:
5 * x = 8 * $42.50
5x = $340
To isolate x, divide both sides of the equation by 5:
(5x) / 5 = $340 / 5
x = $68
Therefore, you will make $68 in 8 hours of babysitting.
To determine the best deal, we need to calculate the cost per pizza for each option.
$25 for 5 pizzas: $25 ÷ 5 = $5 per pizza
$32.48 for 7 pizzas: $32.48 ÷ 7 ≈ $4.64 per pizza
$27.45 for 3 pizzas: $27.45 ÷ 3 ≈ $9.15 per pizza
$28.74 for 4 pizzas: $28.74 ÷ 4 ≈ $7.18 per pizza
The best deal is $32.48 for 7 pizzas, as it has the lowest cost per pizza at approximately $4.64.
Pick one of the answers
The best deal is $32.48 for 7 pizzas.
Use cross products to determine which ratio forms a proportion with 9/4
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2 points
5/3
27/12
36/20
18/4
To use cross products to determine which ratio forms a proportion with 9/4, we need to check if the cross products of each ratio are equal to each other.
Cross product of 5/3:
(5 * 4) = 20
(3 * 9) = 27
Cross product of 27/12:
(27 * 4) = 108
(12 * 9) = 108
Cross product of 36/20:
(36 * 4) = 144
(20 * 9) = 180
Cross product of 18/4:
(18 * 4) = 72
(4 * 9) = 36
Out of the given ratios, only 27/12 has the cross products equal to each other, which means it forms a proportion with 9/4.
So, the ratio that forms a proportion with 9/4 is 27/12.
Solve the proportion x/8=30/40
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2 points
x=4
x=2
x=3
x=6
To solve the proportion x/8 = 30/40, we can cross multiply:
40 * x = 30 * 8
Simplifying:
40x = 240
To isolate x, divide both sides of the equation by 40:
(40x)/40 = 240/40
x = 6
Therefore, the solution to the proportion x/8 = 30/40 is x = 6.
You make $42.50 babysitting for 5 hours. How much will you make in 8 hours?
Tampa is about 275 miles from Tallahassee. How far about would they be on a map with a scale of 1 in. = 15 mi?
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2 points
20 inches
20.25 inches
19.24 inches
18.33 inches