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3 years ago

12 subtracted from a number equals 25 find the number

Mathematics

1 answer:

belka [17]3 years ago

6 0

Answer: 12-n=25

-n=25-12

-n=13

Step-by-step explanation:

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Is -9 a solution to 19>8u+3

iVinArrow [24]

8u+3<19 subtract 3 from both sides

8u<16 divide both sides by 8

u<2 so

-9 is in the solution set u=(-oo, 2)

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3 years ago

Read 2 more answers

4x + 2 < −2 OR 4x + 2 > 26 <br><br><br> solve pl

inn [45]

Step-by-step explanation:

The easiest thing to do here is:

4x + 2 = -2 and 4x + 2 = 26

Just know whaever you get for x is greater or less than the actual answer.

4x + 2 = -2

- 2 - 2

4x = -4

$\frac{4x}{4} = \frac{-4}{4}$

x = -1 <--- Because -2 is supposed to be greater than x, x equals any number less than -1 but not -1.

4x + 2 = 26

- 2 - 2

4x = 24

$\frac{4x}{4} = \frac{24}{4}$

x = 6 <--- Because 26 is supposed to be less than x, x equals any numbey greater than 6 but not 6

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3 years ago

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A westbound train travels 16 miles per hour slower than the eastbound train. If two trains are 800 miles apart after 5 hours wha

lozanna [386]

Answer:

Step-by-step explanation:

The rate can be calculated as follows

x + x -16

2x-16

(2x-16)×5

10x - 80= 800

10x = 300-80

10x, = 220

x = 220/10

= 22

22-16

= 6 mph

Hence the rate of the west bound tsin is 6mph

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3 years ago

A centipede has ______ legs

dezoksy [38]

100 legs. hope it helps!

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3 years ago

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Find the area of this circle. Use 3 for a.A = 7r2=11 in[?] in?

liberstina [14]

SOLUTION

We want to find the area of the circle in the picture given.

We have been given the formula as

$\begin{gathered} A=\pi r^2 \\ We\text{ are told to take }\pi\text{ as 3} \\ \end{gathered}$

From the circle, the radius r = 11 in.

The area of the circle becomes

$\begin{gathered} A=\pi r^2 \\ A=\pi\times r^2 \\ A=3\times11^2 \\ A=3\times11\times11 \\ A=363in^2 \end{gathered}$

Hence the answer is 363 square-inches

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11 months ago