Its cross-multiplication. 20.25 times 1 divided by 3 3/4 = 5.4 -(answer)
Answer:
(-6+y)-3y=28
-2y-6=28
-2y=34
y=-17
Then,
x=-6-17
x=-23
Step-by-step explanation:
Answer:
23
Step-by-step explanation:
i think i hope it help
Answer:
2x - 10
Step-by-step explanation:
2(x - 5)
distribute
2*x - 2*5
2x - 2*5
2x - 10
First option:
y=money saved
x=number of months
y=30x+500
Second option:
y=50x+200
We have this system of equations:
y=30x+500
y=50x+200
We can solve this system of equations by equalization method
30x+500=50x+200
30x-50x=200-500
-20x=-300
x=-300/-20
x=15
so;
y=30x+500
y=30(15)+500
y=450+500
y=950
Answer; after 15 months, she would save the same amount using either option, the amount saved in either option will be $950.
