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3 years ago

Seven times a number minus the number is -48. Find the number.

Mathematics

2 answers:

mixer [17]3 years ago

7 0

Answer:

x = -8

Step-by-step explanation:

let's say the number is equal to x; seven times the number is 7x;

then it says minus the number so 7x-x is equal to -48

7x-x=-48; combine the x's

6x = -48; now divide by 6

x = -8

jeyben [28]3 years ago

6 0

Answer:

The anwser would be A: -8

Step-by-step explanation:

7 x -8 = -56

-56 - (-8) = -48

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2 years ago

15) In your own words, write three or four sentences explaining what exponents are and how they are used in math

Scorpion4ik [409]

Answer:

Exponents

Step-by-step explanation:

exponents are basic short cut to write numbers like 100, 1000, 10000, 1000000 and so on.

Exponents can also be defined as 10 raised to a power x whether positive or negative

$10 {}^{x}$

They are mostly used in expressing units in standard form.

<h3>examples of basic positive exponents</h3>

${10}^{2} = 100$

$10 {}^{3} = 1000$

${10}^{4} = 10000$

${10}^{5} = 100000$

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<h3>examples of basic negative exponents</h3>

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${10}^{ - 3} = 0.001$

${10}^{ - 4} = 0.0001$

$10 ^{ - 5} = 0.00001$

in negative exponents the power represents the number of zeroes before the 1. including the 0 behind the decimal point.

this is the basic lay down of how exponent work but one more quick example for maximum understanding

<h3>quick example</h3>

$4 \times {10}^{4} = 0.0004$

$4 \times {10}^{4} = 40000$

$8.69 \times 10 {}^{ - 3} = 0.00869$

$8.69 \times 10 {}^{ 3} = 8690$

hope you grasp the concept involved in multiplication with other terms.

cheers

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