All categories

3 years ago

What is the difference of (2x+7)-(8x+5)

Mathematics

1 answer:

Anarel [89]3 years ago

5 0

Answer:

If you need the equation: 10x - 12

If you need the equation more simplified: x - 1.2

Step-by-step explanation:

(2x + 7) - (8x + 5)

Move the parts of the equation around

(2x + 8x) - (7 + 5)

Add 2x and 8x together

10x - (7 + 5)

Add 7 and 5 together

10x - 12

If you need it even more simplified, continue

10x - 12

Divide by 10

x - 12/10

Simplify

x - 1.2

I Hope That This Helps! :)

You might be interested in

John is shipping a box. FedEx is going to charge him a flat rate of $5 and then $0.50 per pound. UPS is going to charge him $2 p

alex41 [277]

Answer:

Yes, John did write his systems of equations correctly.

Step-by-step explanation:

FedEx charges him a flat rate of $5, so the 5 stands alone in the problem, and $0.50 per pound, so the 0.5 stands with the x because it represents each pound.

UPS doesn't charge him a flat rate so there is no stand-alone number. Since they charge $2 per pound, 2 is with the x, again representing each pound.

5 0

3 years ago

3/4 miles in 1/2 hour __ miles in 1 hour<br><br>

I am Lyosha [343]

Answer:

1.5 mile an hour

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Is the number 3.1x10^-5 written in scientific notation? Why or why not?

kumpel [21]

Answer: no it is not

Step-by-step: you can not have a negative exponent so the answer would be 3.1 x1/10^5

7 0

3 years ago

8-4d=12 what is d equal to ?

NARA [144]

Answer:d=-1

Step-by-step explanation: you subtract 8 from both sides to get -4d=4 then divide -4 to get d alone. Which will get you to -1=d

4 0

3 years ago

Show all work and reasoning

Natalija [7]

Split up the interval [2, 5] into $n$ equally spaced subintervals, then consider the value of $f(x)$ at the right endpoint of each subinterval.

The length of the interval is $5-2=3$ , so the length of each subinterval would be $\dfrac3n$ . This means the first rectangle's height would be taken to be $x^2$ when $x=2+\dfrac3n$ , so that the height is $\left(2+\dfrac3n\right)^2$ , and its base would have length $\dfrac{3k}n$ . So the area under $x^2$ over the first subinterval is $\left(2+\dfrac3n\right)^2\dfrac3n$ .

Continuing in this fashion, the area under $x^2$ over the $k$ th subinterval is approximated by $\left(2+\dfrac{3k}n\right)^2\dfrac{3k}n$ , and so the Riemann approximation to the definite integral is

$\displaystyle\sum_{k=1}^n\left(2+\frac{3k}n\right)^2\frac{3k}n$

and its value is given exactly by taking $n\to\infty$ . So the answer is D (and the value of the integral is exactly 39).

8 0

4 years ago