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abruzzese [7]
2 years ago
12

Estimate 5171 / 17 by first rounding each number so that it has only 1 nonzero digit.

Mathematics
2 answers:
padilas [110]2 years ago
8 0

Answer:

250

Step-by-step explanation:

5171/17

Estimate: 5000/20 = 500/2 = 250

german2 years ago
7 0

Answer:

250

Step-by-step explanation:

round first to 5000/20 = 250

please give a brainiest

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8.40

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3 years ago
What is 35% of 98? I need Help with this problem?
elena55 [62]
35% of 98 is 34.3

Change the percentage (35) into a decimal by dividing over 100:

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8 0
3 years ago
15. Before oil is added to a certain road surface material, the other ingredients are mixed. The mixture contains
mojhsa [17]

Answer:

sand = 3450 pounds

3/4 inch stones =6750 pounds

1 inch stones =4800 pounds.

Step-by-step explanation:

The mixture composition is :

45% three-quarter inch stones

32% inch stones and

sand for balance

The percent here is by mass of material used.

Weight of mixture is 15,000 pounds before oil addition.

Use the percent by weight for the two types of stones and calculate real values in pounds

Formula to apply is:

Mass percent = (mass of a material/ total mass of mixture) * 100

For 3/4 inch stones it will be:

0.45= \frac{x}{15000} *100\\\\0.45=\frac{x}{150} \\0.45*150=x\\x=6750

The 3/4 inch stones weigh 6750 pounds

The 1 inch stones will be

32/100 * 15000 =4800

The 1 inch stones weigh = 4800 pounds

Total for the two items : 4800+6750 =11550 pounds

The sand used weighs : 15000 - 11550 = 3450 pounds

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4 years ago
6. In the quadratic equation x2 + 8x - 2 = 0, what are the values of a, b, and c?
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Step-by-step explanation:

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3 years ago
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