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Blizzard [7]
3 years ago
9

PLEASE HELP!!! explain your reasoning!!!

Mathematics
2 answers:
alexandr1967 [171]3 years ago
6 0
Yes it is. all of them have an subtracted 5
Lena [83]3 years ago
3 0

Answer:

I think yes

Step-by-step explanation:

Because proportional means compare so, finding the difference so yes.

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5m+2n-7-2m+15 Simplified expression
neonofarm [45]
5m+2n-7-2m+15

Combine all like terms.

3m+2n+8
8 0
3 years ago
PLEASE HURRY AM TIMED<br> 3 1/3÷1 1/4 to the nearest whole number.
Nana76 [90]

Answer:

exact form: 8/3

decimal form: 2.6

mixed number form: 2 2/3

Step-by-step explanation:

3 0
2 years ago
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Write the relation as a set of ordered pairs.
AveGali [126]

Answer:

Is B (-2,-1),(0,0),(2,1)

Step-by-step explanation:

x y

-2 -1

0 0

2 1

I think!!??

5 0
3 years ago
30= 2w + 2h<br><br> W= 3/4 h
Alexeev081 [22]

Answer:

h=60/7

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Step-by-step explanation:

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7 0
3 years ago
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The length of a rectangle is 5 ft less than three times the width, and the area of the rectangle is 50 ft². Find the dimensions
Mariulka [41]

Answer

Length = 10 ft

Width = 5 ft

Explanation

Area of the rectangle given = 50 ft²

Let the width of the rectangle be x

So this means the length of the rectangle will be 3x - 5

What to find:

The dimensions of the rectangle.

Step-by-step solution:

Area of a rectangle = length x width

i.e A = L x W

Put A = 50, L = 3x - 5, W = x into the formula.

\begin{gathered} 50=(3x-5)x \\ 50=3x^2-5x \\ 3x^2-5x-50=0 \end{gathered}

The quadratic equation can now be solve using factorization method:

\begin{gathered} 3x^2-5x-50=0 \\ 3x^2-15x+10x-50=0 \\ 3x(x-5)+10(x-5)=0 \\ (3x+10)(x-5)=0 \\ 3x+10=0\text{ }or\text{ }x-5=0 \\ 3x=-10\text{ }or\text{ }x=5 \\ x=-\frac{10}{3}\text{ }or\text{ }x=5 \end{gathered}

Since the dimension can not be negative, hence the value of x will be = 5.

Therefore, the dimensions of the rectangle will be:

\begin{gathered} Length=3x-5=3(5)-5=15-5=10\text{ }ft \\  \\ Width=x=5\text{ }ft \end{gathered}

7 0
11 months ago
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