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That might have your answer
Answer:
1,2,5 No 3,4 Yes
Step-by-step explanation:
x(x^2-5) No
x(x^2-25x) No
x(x^2-25) Yes
x(x+5)(x-5) Yes
x(x-5)^2 No
There are 16 ounces in one pound, how many scoops are in 10 pounds?
Answer:
Cost of a pound of chocolate chips: $3.5
Cost of a pound of walnuts: $1.25
Step-by-step explanation:
x - cost of a pound of chocolate chips
y - cost of a pound of walnuts
We create two equations based on the information we have:
3x+2y=13
8x+4y=33
The whole point of these problems os to get rid of x or y. In this question, we can do this by multiplying both sides of the first equation by 2, and then subtracting it from the second equation:
8x+4y=33
6x+4y=26
2x=7
x=3.5
Then we change x for 3.5 in the first equation:
3×3.5+2y=13
10.5+2y=13
2y=2.5
y=1.25
Hope this helps!
