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3 years ago

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How to solve when sally went bowling her scores were 108, 72, and 95. if she bowls a 4th game, what will her score need to be to

give her an average of 91?

1 answer:

deff fn [24]3 years ago

4 0

I love weed. it is great.

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Solve the linear equation: 3.4 + 2(9.7 – 4.8x) = 61.2 What are the possible steps involved in solving this equation? Check all t

DochEvi [55]

Answer:

Distribute 2 to 9.7 and −4.8x.
Combine 3.4 and 19.4.
Subtract 22.8 from both sides.
Divide both sides by −9.6

Step-by-step explanation:

Here is the recommended solution method:

3.4 + 2(9.7 – 4.8x) = 61.2 . . . . . given

3.4 + 19.4 - 9.6x = 61.2 . . . . . . . distribute 2 to 9.7 and -4.8x

22.8 - 9.6x = 61.2 . . . . . . . . . . . . combine 3.4 and 19.4

-9.6x = 38.4 . . . . . . . . . . . . . . . . . subtract 22.8 from both sides

x = -4 . . . . . . . . . . . . . . . . . . . . . . divide both sides by -9.6

_____

<em>Alternate solution method using different steps</em>

You can also "undo" what is done to the variable, in reverse order. The variable has these operations performed on it:

multiply by -4.8
add 9.7
multiply that sum by 2
add 3.4 to the product

So, another possible solution method is this:

3.4 + 2(9.7 – 4.8x) = 61.2 . . . . . given

2(9.7 -4.8x) = 57.8 . . . . . . . . . . . add the opposite of 3.4 (undo add 3.4)

9.7 -4.8x = 28.9 . . . . . . . . . . . . . divide by 2 (undo multiply by 2)

-4.8x = 19.2 . . . . . . . . . . . . . . . . . add the opposite of 9.7 (undo add 9.7)

x = -4 . . . . . . . . . . . . . . . . . . . . . . divide by -4.8 (undo multiply by -4.8)

5 0

4 years ago

Read 2 more answers

Steven sells bags of different kinds of cookies. He made $27 selling bags of Oreos, $18 selling chocolate chips cookies, and $45

Alecsey [184]

Answer:

9 dollars

Step-by-step explanation:

It would be 9 dollars because that is the only common factor that could go into 27, 28, or 45.

4 0

3 years ago

Pleasee help me with this problemm

iragen [17]

(_/18+2_/3)^(2

=(3_/2^(2 + (2)(2_/3)(3_/2) + 2_/3^(2)

=18+ 12_/6 +12

=30+12_/6

hope this helps

3 0

3 years ago

Read 2 more answers

In an election, Mr. Jones received 70% of the 1,500 votes cast. How many votes did Mr. Jones receive?

Luba_88 [7]

With receiving 70% of the 1,500 votes, Mr. Jones overall ended up receiving 1050 votes.

70% of 1500 is equal to (70 × 70) / 100 = 1050.

6 0

3 years ago

Read 2 more answers

A recipe calls for 3/4 cup of butter. Angie wants to triple the recipe, but she has only 1 5/8.

Lyrx [107]

Let's start out by tripling the original recipe to see how much butter Angie needs.

$\frac{3}{4} * 3 = total$
$\frac{3* 3}{4} = total$
$\frac{9}{4} = total$
$2 \frac{1}{4} = total$

So we need $2 \frac{1}{4}$ cups of butter, but Angie only has $1 \frac{5}{8}$ . Let's subtract what Angie has from the total to see how much more she needs.

$2 \frac{1}{4} - 1\frac{5}{8} = n$
$\frac{9}{4} - \frac{13}{8} = n$
we will need the least common denominator for both fractions
$\frac{2}{2} *(\frac{9}{4}) - \frac{13}{8} = n$
$\frac{18}{8} - \frac{13}{8} = n$
$\frac{5}{8} = n$

So Angie need $\frac{5}{8}$ cups more of butter for the recipe.

7 0

3 years ago