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Mnenie [13.5K]
3 years ago
8

SMART PEOPLE PLEASE HELP ME !!!!!!!!!!!!!!!!

Mathematics
2 answers:
Bezzdna [24]3 years ago
8 0
Expression E and Expression C and I’m not totally sure but I think expression A
DENIUS [597]3 years ago
8 0

Answer:

Expression A

Expression C

Expression E

Step-by-step explanation:

To solve this, you need to divide 3/4 from both sides. When dividing by a fraction, you multiply by it's reciprocal. In this case, the reciprocal would be 4/3.

Hope it helps!

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What is 0.000000685 written in scientific notation?
maria [59]

we have

0.000000685

we know that

0.000000685=\frac{685}{1,000,000,000} =\frac{685}{10^{9}}=685*10^{-9}

685*10^{-9} =6.85*10^{-7}

therefore

<u>the answer is</u>

6.85*10^{-7}

3 0
3 years ago
Read 2 more answers
Calculate the mean deviation for the numbers: 75, 83, 96, 100, 121 and 125 A 14.33 B 15 C 15.33 D 16
sveta [45]

Answer:

c) 15.33

Step-by-step explanation:

lets find the mean first

mean = sum of the data values / number of data (n)

= 75 + 83 + 96 + 100 + 121 + 125 / 6

= 600/6

= 100

Next, let 'x' represent each data value and 'a' represent the the mean

now, calculate the deviation from each data point

75 - 100 = - 25

83 - 100 = -17

96 - 100 = - 4

100 - 100 = 0

121 - 100 = 21

125 - 100 = 25

Then, find the absolute value of each deviation and sum them up

that is | a - x |

| -25 | + | -17 | + | -4 | + | 0 | + | 21 | + | 25 |

= 25 + 17 + 4 + 0 + 21 + 25

= 92

now, calculate the mean of the absolute value

92/6 = 15.33

4 0
4 years ago
If your going 80 miles per hour how much time would it take you to go 80 miles?
Anika [276]
This should be pretty self explanatory. "miles per hour" is how many miles you can drive in 60 minutes. So, it would take....an hour to reach 80 miles. You're going 80 miles per hour.
6 0
3 years ago
Read 2 more answers
3 Ms. Sosa's principal gave her $350 to spend on school supplies at the beginning of the year. She bought 10 packs of dry erase
svet-max [94.6K]

Answer:The answer is D

Step-by-step explanation: Mark me brainliest please

5 0
3 years ago
Can someone help me out here
Monica [59]
The best options are B and D
5 0
3 years ago
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