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Sonbull [250]
3 years ago
11

Area of Circles - Item 20636

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
7 0
12.7388535, so about 13 would be the radius
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Jeff divided his 1,200 stamps equally among 7 stamp albums. Were there any stamps left over?
user100 [1]

Answer:

<u>3 stamps were left over</u>

Step-by-step explanation:

<u>Division</u>

When a number m divides evenly by n the remainder is 0. For example, 120 divides exactly by 30 because 120/30=4 and the remainder is 0.

But 120 does not divide exactly by 50 because 120/50 = 2 and leaves a remainder of 20.

Jeff divided his 1,200 stamps equally among 7 stamp albums. If the division of 1,200 by 7 was exact, there won't be any stamp left over. Let's test it.

1,200/7 is 171.4, obviously is not exact, thus There were stamps left over.

How many?

Multiply the lower integer of division 171 by 7 to get: 171*7 =1,197. This means that 1,200-1,197= 3 stamps were left over

5 0
3 years ago
Evaluate 5-44• (-0.75) - 18 ÷ 2/3 • 0.8 + (-4/5)​
Marianna [84]

Answer:

15.6.

Step-by-step explanation:

5-44• (-0.75) - 18 ÷ 2/3 • 0.8 + (-4/5)

= 5 + 33 - 27*0.8 - 0.8

= 5 + 33 -21.6 - 0.8

= 15.6.

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3 years ago
Which slope and y-intercept correspond with the graph?
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Your answer is D. You have to find where the lines are in the middle so your answer is D.
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Solve each system of equations using substitution
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I did the first question as reference. Pretty simple once you get it!

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given the equation y=4/5x+1, identify the slope and the y-intercept of the equation. Then graph the equation
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The slope is 4/5 and the y intercept is 1. To graph the equation start at 1 because that is where the graph crosses the y axis and go up 4 and over to the right 5 since the slope is positive.
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