3 years ago

Nathan usually drinks 32 ounces of water per day. He read that he should drink 56 ounces of water per

1 answer:

7 0

Answer:

Step-by-step explanation: you have to find the amount of change then determine the percent of increase and round it to the nearest percent

32 -56=24 then round to the nearest number you get 20

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3 years ago

Kara spend $16 on tubes of paint and brushes for an art project. Each tube of paint costs $3 and each brush costs $ 0.50. Kara p

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Answer: There are 4 tubes of paint she purchased.

Step-by-step explanation:

Since we have given that

Amount spend on tubes of paint and brushes for an art project = $16

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Let the price of tube of paint be 'x'.

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$3x+0.50\times 2x=16\\\\3x+x=16\\\\4x=16x\\\\x=\dfrac{16}{4}\\\\x=4$

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Step-by-step explanation:

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3 years ago

The length of a rectangle is 3 centimeters less than five times its width. Its area is 14 square centimeters. Find the dimension

katrin [286]

Step-by-step explanation:

Let breadth =x

Length=5x-3

As we know that in a rectangle

$\boxed{\sf Area=lb}$

Substitute the values

${:}\hookrightarrow\sf x (5x-3)=14$

${:}\hookrightarrow\sf 5x^2-3x=14$

${:}\hookrightarrow\sf 5x^2-3x-14=0$

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${:}\hookrightarrow\sf 5x (x-2)+7 (x-2)=0$

${:}\hookrightarrow\sf (x-2)(5x+7)=0$

${:}\hookrightarrow\sf x-2=0\quad or\quad 5x+7=0$

${:}\hookrightarrow\sf x=2\:or\:x=\dfrac {-7}{5}$

Ignore negative value

${:}\hookrightarrow\sf Breadth =2cm$

${:}\hookrightarrow\sf Length=5 (2)-3=10-3=7cm$

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3 years ago