Answer:
1
Step-by-step explanation:
You have three cookies and a bully comes and takes two. Now you are left with one cookie.
Answer:
Step-by-step explanation:
Answer:
(2.3, 4.75)
Step-by-step explanation:
The point where 2 lines intersect is the solution to the system of equations.
Answer:
The cost of 7.5 lbs of chopped walnuts is $25.875
Step-by-step explanation:
we are given
It costs $3.45 to buy lb of chopped walnuts
so,
1 lb of chopped walnuts = $3.45
now, we can multiply both sides by 7.5
so, we get
7.5 lbs of chopped walnuts = $25.875
So, the cost of 7.5 lbs of chopped walnuts is $25.875
Answer:
- 64 gallons 30%
- 96 gallons 55%
Step-by-step explanation:
The amount of each brand can be found by writing and solving an equation that makes use of the given relations.
<h3>Setup</h3>
Let x represent the quantity of 55% pure antifreeze needed in the mixture. Then the quantity of the 30% brand is (160-x). The amount of pure antifreeze in the mixture is ...
0.55x +0.30(160 -x) = 0.45(160)
<h3>Solution</h3>
Subtracting 0.30(160), we have ...
x(0.55 -0.30) = 160(0.45 -0.30)
x = 24/0.25 = 96 . . . . . simplify, divide by the coefficient of x
96 gallons of the 55% brand, and 64 gallons of the 30% brand must be used.
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Read more about mixture problems here:
brainly.com/question/26751698
