3 years ago

Express this number in scientific notation. \text{78 million}78 million

Mathematics

1 answer:

tensa zangetsu [6.8K]3 years ago

6 0

78 million =78 x 10^6 = 7.8 *10^7 in scientific notation

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Phantasy [73]

Answer:

s/8 = -8

s = - 64

Step-by-step explanation:

Solution

s/8 - 12 = -20 Add 12 to both sides

s/8 -12+ 12 = -20+ 12 Combine

s/8 = - 8 Multiply both sides by 8

8*s/8 = - 8*8

s = - 64

3 0

2 years ago

What is the average of 55 64 60 and 61

tester [92]

Average is the total of x divide by number of x.
Here, we have,
x = 55, 64, 60, 61
number of x = 4
Total of x = 55 + 64 + 60 + 61 = 240
So, the average is,
240 / 4 = 60

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4 years ago

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shtirl [24]

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puteri [66]

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3 years ago

Help please What is the value of y in this system of equations? -6x+2y=-18 -3x-2y=54

storchak [24]

Answer:

-6x+2y=-18 = $y = -9 + 3x$

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Step-by-step explanation:

I hope I understood this correctly.

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3 years ago