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podryga [215]
3 years ago
9

Can someone answer these 3 problems. (7+7-4)x5 4+1(2-1) (4+2) + ((5+1) x 2) +1

Mathematics
1 answer:
bagirrra123 [75]3 years ago
5 0

Answer:

1. 50

2. 5

3.19

Step-by-step explanation:

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Chloe drives from her house to her Grandma's house 48 miles away in an hour and 12 minutes. How fast was she driving on average?
Lera25 [3.4K]

To find a speed in miles per hour, we need to divide a number of miles by a number of hours.

We are given 48 miles, so we already have a number of miles.

We are given the time as 1 hour and 12 minutes. We need to convert this time into hours.

1 hour + 12 minutes = 1 hour + 12/60 hour = 1.2 hours

speed = distance/time = 48 miles / 1.2 hours = 40 mph

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3 years ago
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Whats the best expansion for (x+5a+5b)(x+a-b) ​
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Answer:

x² + 6ax + 4bx + 5a² - 5b²

Step-by-step explanation:

(x+5a+5b )(x+a-b) ​

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3 years ago
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anyanavicka [17]
The answer would be 1/3 of the population is children. All you need to do to solve this problem is divide the portion of the population (in this case, children) by the total of the population. Therefore, you have 1342/4026 which reduces to 1/3. If you would like to represent this as a percent, it would be approximately 33.33%
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4 years ago
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A Trapezoid has an area of 150 square feet. the Bases are 14 feet and 16 feet. write an equation to determine the height of the
JulsSmile [24]
Given:
Area = 150 square feet
Bases = 14 feet and 16 feet

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Let us use the formula of finding the Area of a trapezoid to get the value of its height.

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3 years ago
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Mashcka [7]

Answer:

<h2>Q9. C.</h2><h2>Q10. B.</h2>

Step-by-step explanation:

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\bold{Q10.}\\\\\text{The scientific notation:}\ a\times10^k,\ \text{where}\ 1\leq a

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