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kobusy [5.1K]
3 years ago
9

Jordan earned $200 this month delivering newspapers. His mom said he must put 20% into his savings account. He wants to buy head

phones that cost $ 99.95 and two shirts that cost \$17 each. He also has to pay 7% sales tax on his purchases . Jordan said, "No problem. I will put 20% into savings , buy the things I want, and still have about $10 left." Use estimation to determine if Jordan's calculation is reasonable. Show your work.
Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
6 0

Answer:

Yes, his calculation is reasonable. He will have about $16.67 left.

Step-by-step explanation:

200 - (200 * .2) = $160 <em>Subtract money for savings</em>

99.95 + (99.95 * .07) + (17*2) + (17 * .07) + (17 * .07) = $143.33 <em>Add taxes</em>

160 - 143.33 = $16.67 <em>Subtract money for purchases from money left after savings</em>

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Mort bought his house in 2004 for $279,000. it was recently appraised at $186,000. What is the approximate percent of decrease i
Natalka [10]

Answer:

33.3%

Step-by-step explanation:

(279,000 - 186,000) / 279,000 = 0.33333333333

0.33333333333*100= 33.3333333333

Formula used:

V_{2} -V_{1} / V_{2} × 100

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7 0
3 years ago
The equation of the line that is parallel<br> to 4x+2 and passing through (5,15)
Mila [183]

Answer:

y=4x-5.

Step-by-step explanation:

slop-interception form of the required line is y=kx+b, where k - slop, b - intercept;

1) to find value of k:

if the required line is parallel to the given line, then slop of the given line = slop of the required line, it means k=4 and the required line is y=4x+b;

2) to find the value of 'b':

if to substitute the given coordinates into the equation of the given line, then:

15=4*5+b, b= -5.

3) finally, y=4x-5

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2 years ago
matt can buy an 8-ounce jar of salsa for $2.79 or a 15-ounce jar os salsa for $5.54. which jar has the best unit rate?
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hope this helps
7 0
3 years ago
How do you write 1 over 100 as a power of 10 with a negative exponent?
vaieri [72.5K]
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3 years ago
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i think with is the correct ansuer


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