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Taya2010 [7]
3 years ago
8

What is 8x + -13x I just want to see if the answers are as quick as it says it is

Mathematics
2 answers:
klasskru [66]3 years ago
7 0
The answer is -5x. Since your adding like terms it's just subtraction because they are different value integers, one is negative and one is positive. When two opposite integers(+ and -) are being added it is just taking away from the negative what the positive value is. If the positive is greater than it may turn the answer into a positive. Example: 12+-2= 10<-- changed
Dafna1 [17]3 years ago
4 0
- 5x. 
In case you actually want to know how I got it:
the question is just saying "8x - 13x".
8 - 13 = -5 
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I only need the answer to c
Alik [6]

Answer:

If we were interested in how the gas prices had changed between 2002 and 2009, we could compute that the cost per gallon had increased from $1.47 to $2.14, an increase of $0.67. While this is interesting, it might be more useful to look at how much the price changed per year. You are probably noticing that the price didn’t change the same amount each year, so we would be finding the average rate of change over a specified amount of time.

The gas price increased by $0.67 from 2002 to 2009, over 7 years, for an average of

$0.677yearsapprox0.096

dollars per year. On average, the price of gas increased by about 9.6 cents each year.

hope it helps

7 0
3 years ago
Jeff uses 3 fifty-size strips to model 3/5. He wants to use tenth-size strips to model an equivalent fraction. How many tenth-si
UNO [17]
He will need 6 tenth-size strips.
6 0
3 years ago
Read 2 more answers
What is the slope of the line that passes through the points (-2, -5)(−2,−5) and (-3, -6) ?(−3,−6)? Write your answer in simples
pogonyaev

Answer:

0 & 0

Step-by-step explanation:

In order to find the answer to these two questions you need to use the slope formula, substitute, subtract, and simplify if needed.

(-2,-5),(-2,-5) = (x^1,y^1),(x^2,y^2)

Slope formula = m=\frac{y^2-y^1}{x^2-x^1}

Substitute: \frac{-5--5}{-2--2} =

\frac{-5--5}{-2--2} =-5--5 = 0

-2--2 = -2+2=0

= 0

(-3,-6),(-3,-6)=(x^1,y^1),(x^2,y^2)

m=\frac{-6--6}{3--3}

-6+6=0

-3+3=0

=0

Hope this helps.

7 0
2 years ago
Your paycheck (before deductions) varies directly as the number of hours you work. If your paycheck is $211.60 for 23 hours, fin
zysi [14]
92 23/211.60 and 10/? You cross multiply and divide by the number left over.
7 0
3 years ago
Write an equation to fit these points (0,4) (5,6) (10,9) (15,12)
Daniel [21]

Answer:

y=3/5x+3

Step-by-step explanation:

m=(9-6)/(10-5)=3/5

y=3/5(x-5)+6

y=3/5x+3

I think (0,4) in this problem is weird.

7 0
3 years ago
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