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Leona [35]
3 years ago
9

Write this expression in standard form by collecting like terms:

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
5 0

9 (a - b) + 5 (2a - 2b)

mutiply the first bracket by 9

(9)(a)= 9a

(9)(-b)= -9b

mutiply the second bracket by 5

(5)(2a)=10a

(5)(-2b)= -10b

9a-9b+10a-10b

9a+10a-9b-10b ( combine like terms<em>)</em>

Answer : C. 19a - 19b

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Convert to a fraction: 150%
BARSIC [14]
So,  all percents can be expressed as *percent*/100
So for this,  it would be 150/100
Then we want to simplify it down and all that jazz.  Find the biggest number that BOTH the numerator AND denominator can be divided by.
In this case,  50.
150/50=3
100/50=2
So now you have 3/2
You might also want a mixed number,  or, a whole number with the leftover fraction after it.
In this case,  see how many times can 2 go into 3 FULLY.
The answer would be 1.  1 is our WHOLE NUMBER.
Then take whatever is left over from 3 and that is our numerator.  Do this,  since 2 can go into 3 ONE time FULLY,  I can say 3-(2*1) is our remainder.
That gives you one as the numerator.  2 is still the denominator.
So a mixed number of 3/2 is 1 1/2
So here is 150% as a fraction:  150/100,  3/2 or 1 1/2.
I hope I helped!!! -Kibeye/Ethan
6 0
4 years ago
Read 2 more answers
Consider the system of equations
Free_Kalibri [48]

Answer:

(-3,-8)

Step-by-step explanation:

okay so what we can do here is elimination

we can do this first by multiplying the entire second equation by 2

so then it would become

2(5x-2y=1)

10x-4y=2

now we can add the two equations together which will eliminate y

so

-8x+4y=-8 plus

10x-4y=2 equals

2x=-6

we did that by combining like terms

next we can simplify that

x=-3

now we can plug that into the equation

-8(-3)+4y=-8

simplify

24+4y=-8

4y=-32

y=-8

our answer would be

(-3,-8)

7 0
3 years ago
Read 2 more answers
6m - 3p + 10 when m = 6, p = 4
asambeis [7]

Answer:

The answer is 58.

Step-by-step explanation:

Plug in and Solve.

6m - 3p + 10 \\ 6(6) + 3(4) + 10 \\ 36 + 12 + 10 \\ 48 + 10 \\ 58

6 0
3 years ago
Read 2 more answers
Plese im stuck on this question and i need this to get my grade up
Volgvan

Answer:

the answer is  x<-1

Step-by-step explanation:

-6x + 22 1/4 +2x> 9 3/4+ 16 1/2

-4x +89/4 >(9+26) + (3/4+1/2)

-4x + 89/4 > 25+ (3/4 + 1/2)

-4x + 89/4 >25 +1 1/4

-4x 89/4 > 25 + 1 + 1/4

-4x + 89/4 > 26+ 1/4

-4x + 89/4 > 26 1/4

-4x + 89/4 > 105/4

-4x > 105/ 4 -89/4

-4x> 4

x <-1

4 0
2 years ago
Tabitha started working at a coffee shop making $8.75 per hour. Every 6 months, she gets a $0.40 cents raise.
Ket [755]

Answer: See explanation

Step-by-step explanation:

From the question, we are informed that Tabitha started working at a coffee shop making $8.75 per hour and that every 6 months, she gets a $0.40 cents raise.

a. The formula to represent her hourly wage after each raise would be:

= $8.75 + 0.40m

where m = period of 6 months

b. Find her hourly wage at 3yrs.​

First we should note that 3 years = 3 × 12 = 36 months. Therefore, we would have 6 periods in 36 months since there's an increase every 6 months.

Therefore, using the formula

= $8.75 + 0.40m

where m = 6

= $8.75 + 0.40(6)

= $8.75 + $2.40

= $11.15

4 0
3 years ago
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