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3 years ago

-7x = -28 solving one step equations show your work

Mathematics

2 answers:

scoray [572]3 years ago

3 0

Answer:

x=4

Step-by-step explanation:

-7x=-28

-7 -7

x=4

Divide both sides by -7. A negative divided by a negative will give you a positive. So the answer would be x=4.

lozanna [386]3 years ago

3 0

Answer:

x=4

you divide both sides by -7 to get the x by itself. -28 divided by -7 is 4.

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(0.7) exponent 2 please help!

ratelena [41]

The answer is 0.49
0.7 x 0.7 = 0.7^2

7 0

3 years ago

Can somebody please explain and answer this for me? I really don't get it.

Tcecarenko [31]

Answer:

Results can be $(-\frac{1}{3} )^5$

Step-by-step explanation:

-The solution for this question:

$(-\frac{1}{3} )^5$ is equal to $(-\frac{1}{3})$ × $(-\frac{1}{3})$ × $(-\frac{1}{3})$ × $(-\frac{1}{3})$ × $(-\frac{1}{3})$

-The calculation for $(-\frac{1}{3} )^5$ :

$(-\frac{1}{3} )^5 = -\frac{1}{243}$

3 0

3 years ago

Printing a newsletter cost $1.50 per copy plus $450 in printers fee. The copies are sold for $3 each. How many copies of the new

e-lub [12.9K]

1.50x + 450 = 3x
450 = 3x - 1.50x
450 = 1.50x
450/1.50 = x
300 = x

300 copies must be sold to break even

6 0

3 years ago

Read 2 more answers

If storm has 3 bars she needs 22 bars but one bar equals 4 ores how many ores does she need?

oee [108]

Answer:

19 bars =<u> 76 more ores.</u> 22 bars = <u>88 total ores.</u>

Step-by-step explanation:

y = 4x

(4 times a number. Ex: x could be 98740757 or 2, it doesn't matter.)

1 b = 4 o

3 b = 12 o

22 - 3 = 19 b

19 b = 76 o (more)

22 b = 88 o (total)

5 0

3 years ago

Read 2 more answers

What is the correct answer..

solong [7]

Answer:

64 feet

Step-by-step explanation:

To find the height of the kite we use sin trigonometric ratio.

Let the height of the kite from the ground be x feet.

$\therefore \: \sin 40 \degree = \frac{x}{100} \\ \\ \therefore \: 0.6427876097= \frac{x}{100} \\ \\ \therefore \: 0.6427876097 \times 100= x \\ \\ \therefore \:x = 64.29 \\ \\ \therefore \:x = 64 \: feet$

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3 years ago