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ivanzaharov [21]
3 years ago
10

Greg bought two boxes of balloons. He used half of them to decorate his yard. He use 40 to decorate his porch. He use the rest i

nside his house. How many balloons did he use inside?
Mathematics
1 answer:
tangare [24]3 years ago
4 0
Xhhdjskanhchcjfjdjjsjnhsjjsjsjjsjsjdjhshdhjdjdjdjh
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Which of the following is an equivalent equation obtained by completing the square of the expression below? x^2+6x−8=0 A (x+3)^2
valentina_108 [34]

Answer:

Solving the equation x^2+6x-8=0 by completing the square method we get \mathbf{(x+3)^2=17}

Option B is correct option.

Step-by-step explanation:

We need to solve the equation x^2+6x-8=0 by completing the square method.

For completing the square method: we need to follow: a^2+2ab+b^2=(a+b)^2

We are given:

x^2+6x-8=0

Solving by completing the square

x^2+2(x)(?)+(?)^2-8=0

We need to find ? in our case ? is 3 because 2*3= 6 and our middle term is 6x i,e 2(x)(3)=6x.

So, adding and subtracting (3)^2

x^2+2(x)(3)+(3)^2-8-(3)^2=0\\(x+3)^2-8-9=0\\(x+3)^2-17=0\\(x+3)^2=17

So, solving the equation x^2+6x-8=0 by completing the square method we get \mathbf{(x+3)^2=17}

Option B is correct option.

7 0
3 years ago
There are 252 pieces of candy in a 14-ounce jar. How many pieces of candy are there per ounce in the jar?
djyliett [7]

"Per" essentially means "divided by." To find pieces per ounce, divide pieces by ounces.


(252 pieces)/(14 ounces) = (252/14) pieces/ounce = 18 pieces/ounce

5 0
3 years ago
Read 2 more answers
PLEASE HELP I WILL GIVE THE BRAINLIEST!!!!
AysviL [449]

Answer:

54 in

Step-by-step explanation:

6 3/4= 27/4

27/4 x 8= 54

6 0
3 years ago
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Check the image needed more words :p
Olin [163]
I got 16.8 , but she’ll need roughly 17 gallons of paint :)

how i did it :

1. so you know she’ll need 4/5 per book case, and there are 16 bookcases.
2. So you do 16 x 5, then you get 84
3. and you divide 84 by 5. and you’ll get 16.8, that’s how many gallons of paint she needs
6 0
4 years ago
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Brennan purchased an almond tart costing $18.56. He gave the cashier $19.55. How much change did the cashier give back to Brenna
11111nata11111 [884]

Answer:

0.99.

Step-by-step explanation:

7 0
3 years ago
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