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3 years ago

(9m+6)+(-5m-6) a. 4m+12 b.14m+12 c.14m-12 d.4m

Mathematics

2 answers:

Arisa [49]3 years ago

8 0

Answer:

A. 4m+12

Step-by-step explanation:

artcher [175]3 years ago

5 0

C.) 14-12

move the like terms first.

(9m+5m)+(-6-6)
=14m-12

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Solve the equation. 4(x − 7) − 128 = 9x − 5(x + 6)

vichka [17]

The equation 4(x − 7) − 128 = 9x − 5(x + 6) has no solution

<h3><u>Solution:</u></h3>

Given that 4(x − 7) − 128 = 9x − 5(x + 6)

We have to find the solution for this equation

4(x − 7) − 128 = 9x − 5(x + 6)

Let us use BODMAS rule to perform the sequence of operations

According to Bodmas rule, if an expression contains brackets ((), {}, []) we have to first solve or simplify the bracket followed by of (powers and roots etc.), then division, multiplication, addition and subtraction from left to right.

So let us solve for brackets first

4x - 28 - 128 = 9x - 5x - 30

Now let us perform subtraction

4x - 156 = 4x - 30

Now move the terms from R.H.S to L.H.S

4x - 4x = -30 + 156

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Since there is no value of x that will ever make this a true statement, the solution to the equation above is “no solution”

So this equation has no solution

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3 years ago

There are 99 males and 121 females participating in a marathon. What percent of the participants are female?

ioda

To do this, we first want to see how many participants there are in total by adding both males and females.

$99+121=220$

Now we know that there were 220 total participants, but only 121 were females.

This allows us to set up the fraction 121/220= the percent female.

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2 years ago

Ralph is an electrician. He charges an initial fee of $26, plus $31 per hour. If Ralph earned $119 on a job, how long did the jo

lubasha [3.4K]

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You can turn this into an equation:

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Plugging in the 119 for F, we get
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3 years ago

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elena55 [62]

Answer:

Step-by-step explanation:

We solve this by using 2 to open the bracket

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So we can solve the one inside the bracket first

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The original price for a jacket was 124.95. It is on sale for 20% off. Witch of the following gives the best estimate of the sav

d1i1m1o1n [39]

20% of 124.95 is close to $125 so that is equal of 12.50 of 10% so multiply by 2 which is $25.00 so the estimate discount of the jacket will be $25.00

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3 years ago

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