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swat32
3 years ago
8

3

Mathematics
2 answers:
Gnoma [55]3 years ago
6 0

Answer:

-35 - 5

Step-by-step explanation:

2 + 12 = 14, which is positive

(-3) * (-8) = 24, which is positive

10 - (-18) = 10 + 18 = 28, which is positive

-35 - 5 = -40, which is negative

frozen [14]3 years ago
3 0

Answer:

-35-5

Step-by-step explanation:

2+12=14

The result is a positive value.

-3 \times -8=24

The result is a positive value.

10-(-8)\\10+8=18

The result is a positive value.

-35-5=-40

The result is a negative value.

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3 years ago
Determine the place value of the digit 3 in the whole number. 30,500,421
Bond [772]

Answer:

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Step-by-step explanation:

Hope this helps!

6 0
3 years ago
Read 2 more answers
Simplify the expression: 2(3x – 5) + 4x - 7
Ksivusya [100]

Answer:

\huge{ \fbox{ \sf{10x - 17}}}

Step-by-step explanation:

\sf{ \: 2(3x - 5) + 4x - 7}

Distribute 2 through the parentheses

\mapsto{ \sf{6x - 10 + 4x - 7}}

Add the like terms : 6x and 4x

Like terms are those which have the same base.

\mapsto{ \sf{10x - 10 - 7}}

\underline{ \text{Remember!}} : The negative integers are always but added but posses the negative ( - ) sign.

\mapsto{ \sf{10x - 17}}

Hope I helped!

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8 0
3 years ago
Read 2 more answers
The base of a triangle is 4 inches more than 8 times its height.
Zanzabum

Answer:

12

Step-by-step explanation:

The area of a triangle is given by A=1/2bh, and from the first line give sus b=4+4h. Therefore we get A=(1/2)(4+4h)h=12. Or (2+2h)h=12. We can simplify further by dividing both sides by 2, and we get (h+1)h=6 or multiplying out h^2+h=6 which gives h^2+h-6=0. This we can factor into (h+3)(h-2)=0 or h=2, or -3. We have a positive hight, therefore, h=2 which gives us a base of b=4+4*2=12. So a base of 12inches. and a hight of 2 inches. We can plug this into the original area formula and see we get an answer of 12

5 0
3 years ago
Karen earns $62.25 for working 9 hours. if the amount she earns varies with the number of hours she works how much will she earn
nata0808 [166]

Answer:

$103.75

Step-by-step explanation:

we know that

Karen earns $62.25 for working 9 hour

so

using proportion

Find out  how much she will  earn for working 15 hours

\frac{62.25}{9}\ \frac{\$}{h}=\frac{x}{15}\ \frac{\$}{h}\\\\x=62.25(15)/9\\\\x=\$103.75

6 0
3 years ago
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