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Gennadij [26K]
10 months ago
12

The measure of one side of a square is (8 + 3) inches long. Which pair of expressions both represent the perimeter this square?

2s + 3 A) and (st 3) (8+3) 2 (5 + 3) B) and (+3)(8 + 3) 48 + 3 and (s + 3) + (8 + 3) + (8 + 3) + (8 +3) 4 (+3) D and (6 + 3) + (6 +3+ (6 +3+ (6 + 3) DELL
Mathematics
1 answer:
tensa zangetsu [6.8K]10 months ago
5 0

Given:

The side of a square a, s+3.

The perimeter of a square is the sum of the four sides of the square. Hence,

\begin{gathered} P=s+3+s+3+s+3+s+3 \\ =4(s+3) \end{gathered}

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Ryan bought 6 apples and 9 peaches for a total of $7.86. Maya bought 4 apples and 5 peaches for $4.82. How much are apples and p
nekit [7.7K]
Apples are $0.68 and peaches are $0.42.

To find these values, we need to write and solve the following system of equations.

6x + 9y = 7.86
4x + 5y = 4.82

Multiply the first equation by 2 and the second by -3.

12x + 18y = 15.72
-12x - 15y = 14.46

Add the equations together.
3y = 1.26
y = 0.42

Sub in 0.72 and solve for x in either equation and you will get x = 0.68.

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3 years ago
The ratio for 12 packs at 4 for $10
Lorico [155]
I think the ratio is for for every 4 packs it cost 10 dollars so in all it would cost 30 dollars
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I have four factors 3 of my factors are 1,2,and 6 what is my fourth factor
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2 multiplied by 6 is 12 and so 1 multiplied by something is 12
Hope this helps. 
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The ratio of pencils to erasers is 4:1. If there are 20 pencils, how many erasers are there.
Leokris [45]

Answer: 5 Erasers

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3 0
2 years ago
Suppose Sally has $28.00 in her bank account and starts saving $18.25 every week. Her friend Suzy has $161.00 in her bank accoun
Elza [17]

a.

Sally has $28.00 in her bank account and starts saving $18.25 every week.

Let x represent the number of weeks from when he have $28.00 in her account.

and y represent the amount in her account at week x;

We can write the function of the case as;

y=mx+b

where m is the amount she saves every week, and b the initial amount in her account.

\begin{gathered} m=\text{ \$18.25} \\ b=\text{ \$28.00} \end{gathered}

So, the function will be;

y=18.25x+28

b.

Her friend Suzy has $161.00 in her bank account and is withdrawing $15 every week.​

Using the same rule as in a above;

\begin{gathered} m=-15\text{ (withdrawing is negative)} \\ b=161 \end{gathered}

The function will be;

y=-15x+161

c.

The graph of the two functions is shown below;

d.

The point where the two lines intersect is shown in the graph above.

The point is at;

(4,101)

Which is at week 4 and balance $101.

e.

The point at which they intersect is the point where they both have the same values.

It is the week when both Sally and Suzy have the same amount in there account.

So, at the fourth week (week 4) Sally and Suzy both have $101 in their account

3 0
1 year ago
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