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IrinaVladis [17]
3 years ago
15

25 POINTS!!!

Mathematics
2 answers:
IrinaVladis [17]3 years ago
6 0
The answer should be D) x = 9.
shusha [124]3 years ago
4 0

Answer:

x=-9/7

Step-by-step explanation:

In this problem, the trick is to make all the denominators equal.

It will be tricky but remember that you can use factoring to equal them out.

And when you get that done, you ignore the denominators and just solve for x.

I would lovee brainliet answer though, so yea... And btw I took the test already and got it correct :)

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Alicia received a utility bill in the amount of $90. This number represents 12% of her weekly income. Find Alicia’s weekly incom
dsp73

Answer:

$750

Step-by-step explanation:

so $90 is 12% of her weekly income

so you have to do

$90 / 12% = $750

so her income is $750 a week

8 0
3 years ago
A textbook store sold a combined total of 460 physics and math textbooks in a week. The number of math textbooks sold was 62 les
sergij07 [2.7K]

Number of physics textbooks sold was 261 & number of maths textbooks sold was 199.

Let, the number of physics textbooks sold = x

According to the question,

The number of math textbooks sold was 62 less than the number of physics textbooks sold.

So, Number of maths textbooks sold = x-62

The textbook store sold a combined total of 460 physics and math textbooks in a week.

So, the equation becomes,

(x-62)+x = 460

⇒ x-62+x = 460

⇒ 2x-62 = 460

⇒ 2x = 460+62

⇒ 2x = 522

⇒ x = 522/2

⇒ x = 261

So, 261 physics textbooks were sold

(261-62) = 199 maths textbooks were sold.

Learn more about equation here :

brainly.com/question/27893282

#SPJ10

5 0
2 years ago
Sean bought 1.8 pounds of gummy bears and 0.6 pounds of jelly beans and paid $10.26. He went back to the store the following wee
Ymorist [56]

Answer:

Gummy bears $3.20/lbs

Jelly beans $7.50/lbs

Step-by-step explanation:

For this we will substitute gummy bear price for "x" and jelly bean price for "y" which creates this system (also assuming there is no sales tax involved):

1.8x + 0.6y = 10.26

1.2x + 1.5y = 15.09

Then once solved, answers come out to be (x,y) = (16/5,15/2) which is (3.2,7.5)

7 0
3 years ago
What is the value of<br>y in the equation?<br>2y - 3/3 - 3= 2y/5<br>​
maksim [4K]

Answer:

Solve for  y  by simplifying both sides of the equation, then isolating the variable.

Exact Form:

y  =  5 /2

Decimal Form:

y  =  2.5

Mixed Number Form:

y  =  2  and 1 /2

Step-by-step explanation:

Hope this helps! Have a great day!

3 0
3 years ago
Read 2 more answers
Factor the following using the difference of squares method
Bond [772]

Answer:

a)

{x}^{2}  - 16 \\  =  {x}^{2}  -  {4}^{2}  \\  = (x + 4)(x - 4)

b)

{9y}^{2}  - 25 \\ =   {(3y)}^{2}  -  {5}^{2}  \\  = (3y + 5)(3y - 5)

here is the answer hope that will help you

6 0
3 years ago
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