MATHEMATICS MIDDLE SCHOOL

What is 5a2 -6a+7a2+3a-2+8a+7=
Distribute and combine like terms

Answers

Answer 1

Answer: $5a^2-6a+7a^2+3a-2+8a+7\n\n=5a^2+7a^2-6a+3a+8a-2+7\n\n=12a^2+5a+5$

Answer 2

Answer:

Answer:

12a²+5a+5

Step-by-step explanation

Might be wrong :/

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How is 40 gummy bears for 5 dollars written as a fraction?

Answers

40/5 because to find the answer you would divided them

40/5 you'd have to divide them together to see how much each gummy bear cost.

Simplify. Assume that no denominator equals zero.

Answers

$(x^2-25)/(x^2-2x)* (x-2)/(x^2+5x)$

Let's factor all four of these before we multiply.

x² - 25
We want two numbers that add to -25 and multiply to 0.
= (x+5)(x-5)

x² - 2x
Both terms are divisible by x.
= x(x-2)

x - 2
unfactorable

x² + 5x
Both terms are divisible by x.
= x(x+5)

Now we have this:

$((x+5)(x-5))/(x(x-2))* (x-2)/(x(x+5))$

Let's go ahead and multiply across.

$((x+5)(x-5)(x-2))/(x(x-2)x(x+5))$

Cancel out the (x+5) and (x-2) from the top and the bottom.

$\boxed{(x-5)/(x^2)}$

Before we solve this equation, we need to simplify it. x²-25 will simplify to (x-5)(x+5). x²-2x would simplify to x(x-2) after we factor out a x. x-2 is prime, so we won't do anything to it. x²+5x will simplify to x(x+5) after we factor out an x.

Now this is what we have:
$[(x-5)(x+5) ]/x(x-2) * (x-2)/[x(x+5)]$
If we look at the top and the bottom of the fractions, we see that we have two x-2's and two x+5. Those will cancel out.
$[(x-5)/x]*(1/x)$
Now we will multiply across to get
$(x-5)/x^2$

There are 120 minutes in 2 hours .how many minutes arethere in 5 hours?

Answers

The answer is 300 you see you do 120 divided by 2 which is 60 then you realize 60 is one hour so multiply 60 times five and there is your answer

Hey there the answer would be 300 minutes

#18 how would u not multiplying to find which is grater

Answers

In the first product the numerator of the fraction is greater than the denominator, therefore the fraction is greater than 1. On the other hand in the second product the numerator of the fraction is smaller than the denominator, therefore the fraction is smaller than one. That means the first product is greater than the second one.

figure out which fraction is larger first by making a mixed number:9 1/6 them find least common denominator between 6 and 10 to compare the two fractions. once you got that which numerator is larger. if that made no since sorry

The number 6 is halfway between 2.8 and...?
the number 6 is halfway between -12 and...?

Answers

if 6 is halfway between 2.8 and x, then the distance from 2.8 to 6 is 1/2 the distance from 2.8 to something
find the distance

6-2.8=3.2
1/2 distance=3.2
multiply by 2 to find whole distance
3.2 times 2=6.4
add
2.8+whole distance=2.8+6.4=9.2

6 is halfway between 2.8 and 9.2

6 is halfwa between -12 and something
find distance
6-(-12)=6+12=18
1/2 distance=18
times 2
18*2=36
add
-12+36=24

6 is halfway between -12 and 24

blanks are
6 is halfway betwen 2.8 and 9.2
6 is halfway betwen -12 and 24

A rabbit weighs 4 pounds and 6 ounces how many ounces does the rabbit weigh