2 years ago

When a number is written in scientific notation how can you tell right away whether or not it is greater than or equal to 1

Mathematics

1 answer:

dem82 [27]2 years ago

3 0

If the exponent of the 10^(A NUMBER) part is positive, then it is greater than one.

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Solve -np-80<60 for n. Show your work.<br><br> Solve 2a-5d=30 for d. Show your work.

xz_007 [3.2K]

$-np-80 < 60\qquad\text{change the signs}\\\\np+80$

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$2a-5d=30\qquad\text{subtract 2a from both sides}\\\\-5d=-2a+30\qquad\text{change the signs}\\\\5d=2a-30\qquad\text{divide both sides by 5}\\\\d=0.4a-6$

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2 years ago

dan can clean an attic in 13 hours. Imani can clean the same attic in 14 hours. Find how long it would take them if they worked

monitta

13.5

14+13=27
27÷2=13.5

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2 years ago

Tracy has a long weekend coming up, and she wants to spend all 3 days camping at Moose Hill Forest. She

PSYCHO15rus [73]

Answer:

a 75% chance the weather will stay dry

Step-by-step explanation:

3/4

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1 year ago

laryy has 3 packets of ballons with 15 ballons in each packet. he wants to put the same number of balloons into 10 gift bags wha

wel

larry has 3 packer sin each 15 and total are 45 u wish put in 10 bags then divide 45 by 10 anser is 5

5 0

2 years ago

To make fruit punch for a party, we need 4 1⁄2 gallons of ginger ale, 1 gallon of strawberry juice, 2 3⁄4 gallons of frozen oran

lina2011 [118]

For this case we convert the mixed numbers to fractions:

$4 \frac {1} {2} = \frac {2 * 4 + 1} {2} = \frac {9} {2}\\2 \frac {3} {4} = \frac {4 * 2 + 3} {4} = \frac {11} {4}$

Now we add the fractions:

$\frac{9} {2}+1+ \frac {11} {4} + \frac {1} {8} =$

We find the least common multiple of the denominators. The l.c.m is 8, then we divide by each denominator and multiply the result by each numerator.

$\frac {36 + 8 + 22 + 1} {8} =\\\frac {67} {8} =$

8,375

Thus, the punch recipe implies 8.375 gallons. If we convert to a mixed number we have:

$8 \frac {3} {8}$ gallons

Answer:

$8 \frac {3} {8}$ gallons

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2 years ago