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Amiraneli [1.4K]
3 years ago
7

Sean runs 3 miles in 21 minutes , Gwen runs 4 miles in 32 minutes ,Marc runs 5 miles in 30 minutes. Who has the fastest average

speed,in miles per minute?
Mathematics
1 answer:
hodyreva [135]3 years ago
7 0
Marc has the fastest average speed in miles per minute as he ran a mile in 6 minutes.
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The factory used to produce 126 articles a day. As a result of retooling, production increased to 189 articles a day. What was t
NARA [144]

Answer: The answer is 50%.


Step-by-step explanation:  Given that the factory produces 126 articles in a day. After retooling, the production of the articles increased and they started producing 189 articles in a day. We need to calculate the percent increase in labour productivity.

We have,

Percent Increase in labour productivity will be equal to the percent increase in the number of articles.

Increase in the number of articles after retooling = 189 - 126 = 63.

Therefore, percent increase in the number of articles is given by

p=\dfrac{63}{126}\times 100\%=\dfrac{100}{2}\%=50\%.

Thus, the labour productivity increased by 50%.

8 0
3 years ago
Solve the system of linear equations by elimination.<br><br> 9x−2y=349x−2y=34<br> 5x+2y=−6
stealth61 [152]
So combine all the x and the Y on the left side and the coefficients on the right and then multiply the variable (x or Y) by the number needed for both. and then whichever variable you have left (x or y) will equal the coefficient and then divide by the coefficient
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3 years ago
Consider the 6 x 9 inch rectangular cake that is 2 inches deep. If you cover the cake with frosting excluding the bottom, what i
Olenka [21]

Total area of the ends: 2(2")(6") = 24 in^2

Total area of the sides: 2(2")(9") = 36 in^2

Are of the bottom : 1(6")(9") = 54 in^2


Total surface area to be covered = (24+36+54) in^2

7 0
3 years ago
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Estimate the measure of
Lelu [443]

Answer:

148°

Step-by-step explanation:

it is very close to the 150 line and the option closest to 150 is 148

8 0
3 years ago
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PLEASE! An item costs 410 before tax, and the sales tax is 32.80.
Norma-Jean [14]

Divide the amount of the tax by the cost of the item:

32.80 / 410 = 0.08

Multiply by 100:

0.08 x 100 = 8%

Answer: 8%

8 0
2 years ago
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