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Lady_Fox [76]
3 years ago
7

A rectangle has a length of 2x+ 7 and a width of 3x+ 8y. Write and simplify an expression for the perimeter of that rectangle.

Mathematics
1 answer:
tigry1 [53]3 years ago
7 0
2(2x+7)+ 2(3x+ 8y) should work
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I need some help i cant figure this out
Luden [163]

Answer:

Um the picture isn´t very clear it is hard to see it.

Step-by-step explanation:

at least on my end it is.

8 0
3 years ago
What is the original price if there is a 45% discount and the sale price is $550?
Svetradugi [14.3K]

Original price×(1-discount price)=new price or sale price so

Put x in original price...x(1-45/100)=550

So the original price is 1000

3 0
3 years ago
1. Round off each of the following to the nearest whole number.
Anni [7]

<em>☽------------❀-------------☾</em>

<em>Hi there!</em>

<em>~</em>

<em></em>8.71 = 9<em></em>

<em></em>26.01 = 26<em></em>

<em></em>69.48 = 69<em></em>

<em></em>103.72 = 104\\49.84 = 50\\101.35 = 101\\39.814 = 40\\1.23 = 1<em></em>

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4 0
3 years ago
Read 2 more answers
Lupe can ride her bike at a rate of 20 mph when there is no wind. On one particular day, she rode 2 miles against the wind and
WARRIOR [948]

Hello there! Your answer should be 4 mph. Reasoning:

2 = (20 - x) * t 

3 = (20 + x ) * t 

Time is the same for both equations. Solve for T.

2/(20-x) = 3/(20+x)

the answer is 4 mph.

Please tell me if I was right!

4 0
3 years ago
Read 2 more answers
Compare fractions 3/4 and 11/12
RoseWind [281]

For now, assume 3/4 and 11/12 are equal. It is likely they are not equal, but we'll get to that later.

The equation we set up is 3/4 = 11/12

---------------------------------------------------------------

3/4 = 11/12

3*12 = 4*11 ... cross multiply

36 = 44

The last equation is false, so the entire string of equations are false.

This tells us that 3/4 is not equal to 11/12.

Since the left hand side of the last equation is smaller, this means we must replace the equal sign with a less than sign. Do so with the other equal signs as well. We have this updated set of steps

3/4 < 11/12

3*12 < 4*11 ... cross multiply

36 < 44

We see that 3/4 is smaller than 11/12

---------------------------------------------------------------

Another way to see that 3/4 is smaller is to use a calculator to find the decimal version of each fraction

3/4 = 0.75

11/12 = 0.9167 approximately

Since 0.75 is smaller than 0.9167, this means 3/4 is smaller than 11/12.

---------------------------------------------------------------

If you want to stick with fractions and you don't want to cross multiply, then we can rewrite 3/4 as a fraction that has 12 in the denominator.

Multiply top and bottom of 3/4 by the value 3

This will make 3/4 turn into 9/12

3*3 = 9

4*3 = 12

So 3/4 = 9/12 is a true equation

Instead of comparing "3/4 and 11/12", we are equivalently comparing "9/12 and 11/12".

The numerator 9 is smaller than the numerator 11, so 9/12 is smaller than 11/12

This points to 3/4 being smaller than 11/12.

5 0
3 years ago
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