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Dimas [21]
3 years ago
12

Rebecca but one goldfish for $32 and one starfish for $12 . She spends the rest of her money on guppy fish. She starts with $80.

Each guppy costs $6. Right and inequality for the number of guppies she can purchase.
Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
3 0
She can buy 5more guppies because she spent $50 in total because 32+12+6= 50 dollars.So she has $30 dollars left $6 per guppy × 5 guppies = $30 so she can buy 5 more
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In ∆ABC, AC = 15 centimeters, m B = 68°, and m C = 24°. What is BC to two decimal places?
Ahat [919]

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Explanation:

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Step-by-step explanation:

4 0
3 years ago
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When Cullen cleaned behind his dresser, he found 73 cents, all in nickels and pennies. There were 25 coins. How many were nickel
Georgia [21]
Let n = number of nickels, and p = number of pennies.
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n + p = 25

The value of the coins is 0.05 per nickel, and 0.01 per penny.
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Now you have a system of equations.

n + p = 25
0.05n + 0.01p = 0.73

Solve the first equation for n:
n = 25 - p

Now substitute into the second equation.

0.05(25 - p) + 0.01p = 0.73

1.25 - 0.05p + 0.01p = 0.73

-0.04p = -0.52

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There were 13 pennies.
Now we substitute 13 for p in n + p = 25 to find out the number of nickels.

n + 13 = 25
n = 12

There are 13 pennies and 12 nickels.

Check: 13 pennies and 12 nickels does total 25 coins.
13 * 0.01 + 12 * 0.05 = 0.13 + 0.60 = 0.73
The value is $0.73.
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