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Margaret [11]
3 years ago
13

Show away to count from 668to900 using ones,ten,and hundred

Mathematics
1 answer:
sweet [91]3 years ago
5 0
Not sure what you mean, exactly, but Ill try.

668, using 2 ones, go to 670. Using 3 tens, go to 700. Using 2 hundreds get to 900. Hope this helped :)
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a board game that normally costs $30is on sale for 25 percent off. what is the sale price of the game
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22.5

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What is the solution of |2x| = –4?
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A person is skateboarding to their local skate shop to pick up some sick rims. They skate at 8 miles per hour. The store is 2.5
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Answer: 0.3125 hours

Step-by-step explanation:

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3 0
2 years ago
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.
The number of coins is 25, so we get this equation.
n + p = 25

The value of the coins is 0.05 per nickel, and 0.01 per penny.
0.05n + 0.01p = 0.73

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.

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There are 13 pennies and 12 nickels.

Check: 13 pennies and 12 nickels does total 25 coins.
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The value is $0.73.
Our answer is correct.
5 0
3 years ago
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