Answer:
8 cookies are made per cup of milk.
Step-by-step explanation:
20 divided by 2 and 1/2 is 8.
8 + 8 + 4 (or half of 8) = 20
hope this helps. . .
have a good day. UwU
5.25 pounds of one alloy containing 45% copper and 36.75 pounds of 69% copper is used to make 42 pounds of 66% copper
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
Let x represent the amount of 45% copper and y represent the amount of 66% copper needed to make 42 pounds of a third alloy containing 66% copper. Hence:
x + y = 42 (1)
Also:
0.45x + 0.69y = 42(0.66) (2)
This gives:
x = 5.25, y = 36.75
5.25 pounds of one alloy containing 45% copper and 36.75 pounds of 69% copper is used to make 42 pounds of 66% copper
Find out more on equation at: brainly.com/question/2972832
#SPJ1
Answer:
7/4,
Step-by-step explanation:
it cant be simplified
You x all the sides together and add the 2 numbers you get
The answer is 52+7x I hope this helps
