3 years ago

The area of a rectangle is 42 inches long and one side is 12 inches long.What is the perimeter

Mathematics

1 answer:

lys-0071 [83]3 years ago

6 0

You cant know the perimeter by the area. you need at least the threesides of the triangle

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The length of a rectangle is 18 centimeters less than five times it's width. It's area is 35 square centimeters. I need to find

Fiesta28 [93]

$\frac{(5x-18)(x)}{2} =35$
$(5x-18)(x)=70$
$5x^2-18x-70=0$
By the time you factorize this, you will get
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2 years ago

Help me please?? solve using proportion

gulaghasi [49]

9514 1404 393

Answer:

2 1/2 cups

Step-by-step explanation:

A proportion says the ratio of one thing to another is the same for different amounts. Here, we want cups, so we can use the proportion ...

cups/people = 2/12 = x/15 . . . . . where x is the number we want to find

Multiplying by 15 gives ...

x = 15(2/12) = 5/2 = 2 1/2

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The temperature change from 6am to noon is 11°c

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Just multiply 1/4 times 6

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