3 years ago

Estimate the sum by rounding the numbers to the nearest hundred and then adding: 539 + 221

Mathematics

1 answer:

Zina [86]3 years ago

5 0

Answer:

700

Step-by-step explanation:

539 rounded to 500

221 rounded to 200

500 plus 200 is 700

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The function y=60+25sin(pi/6)t, where t is in months and t=0 corresponds to April 15, models the average high temperature in deg

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Answer:

The maximum temperature will be of 85 degrees, on July 15.

Step-by-step explanation:

Sine function:

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When will it occur?

First we find the value of t for which the value inside the function sine is $\frac{\pi}{2}$ . So

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$2t = 6$

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3 years ago

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Mrs. Blanda's truck holds 19.7 gallons of gas. She used 4 full tanks fo gas last month and paid $3 for each gallon. How much did

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Answer:

$236.40

Step-by-step explanation:

Mrs. Blanda's truck holds 19.7 gallons of gas. She used 4 full tanks of gas last month.

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4 full tank = 78.8 gallons of gas used last month

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We need to find the amount she paid for 78.8 gallons

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Mrs. Blanda spend on gas last month = $236.40

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3 years ago