PLEASE HELP, WILL GIVE 20 POINTS.
1 answer:
Answer:
Step-by-step explanation:
To double the dimensions, you must multiply both the length and width by 2, so instead of just , you have
, which can be simplified even further to
Now, multiply the 2s together to get 4, making the equation . Since
is
, and
is 4 times as much as
, you just need to multiply the original area by 4 to get the new area.
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Answer:
2.625 cups or 21 ounces
Step-by-step explanation:
Ava needs 3/4 cup of blue paint for every 1 cup of white paint. So, the ratio is 0.75 : 1.
She has 28 ounces of white paint. But, you have to convert ounces to cups.
1 cup = 8 ounces
28 ounces ÷ 8 ounces/cup = 3.5 cups
Now set up a ratio.
X (how much blue paint is needed) is over 3.5 cups (the amount of white paint she has)
Cross multiply and divide.
x = 0.75 × 3.5
x = 2.625 cups
To convert to ounces, multiply by 8.
2.625 cups × 8 ounces = 21 ounces
Therefore, Ava needs 2.625 cups or 21 ounces of blue paint.
Hope that helps.