Caitlin has 27 $5 bills and 54 $10 bills.
Step-by-step explanation:
Given,
Worth of $5 and $10 bills = $675
Let,
Number of $5 bills = x
Number of $10 bills = y
According to given statement;
5x+10y=675 Eqn 1
She has twice as many $10 bills as $5 bills.
y=2x Eqn 2
Putting value of y from Eqn 2 in Eqn 1
Dividing both sides by 25
Putting x=27 in Eqn 2
Caitlin has 27 $5 bills and 54 $10 bills.
Keywords: linear equation, substitution method
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Answer:
slope = 2
Step-by-step explanation:
To calculate the slope m use the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (1, - 2) and (x₂, y₂ ) = (3, 2) ← 2 points on the line
m = =
= 2
Answer:
5%
Step-by-step explanation:
Percent of error = × 100%
= 5%
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Lexi and Ann went shopping. Ann wondered how much tax she would have to pay on her purchase of $76. Lexi said, "They just charged me $17 in taxes when I bought these outfits for $200." How much will Ann pay in taxes?
Ann's taxes = × $76
= $6.46
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Every week Roseanne gets paid $100 plus a 5% commission on all of her sales. If she has $5,000 in sales, how much is her pay for the week?
5% commission = × $5000
= $250
Total pay = $250 + $100
= $350
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Every week Kabore gets paid $100 plus 5% of his sales. How much does he need to sell if he wants to make $700 this week?
Amount of commission paid = $700 - $100
= $600
5% of sales = $600
100% of sales = × $600
= $12 000
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Get-It-Done Depot has an ad for piping that reads:
“15 inches of pipe - only $2.00
Get 15% off the total when you buy more than 3 feet”
Mike needs 4 feet of piping. How much will it cost him?
4 feet = 48 inches
48 inches - × $2.00 = $6.40
Total after 15% off (since 4 feet is more than 3 feet so the discount is legible) - × $6.40 = $5.44