Chocolate- 20×.5= 10 Vanilla-20×.25=5 Strawberry- 20×.25=5 10+5+5=20
5x + 18y = 23
x + 3y = 2 .....multiply by -5
----------------
5x + 18y = 23
-5x - 15y = -10 (result of multiplying by -5)
----------------add
3y = 13 <=== the resulting equation
The answer is 102,804,768
Answer:
1) s = 12.25
2) n = 3
Step-by-step explanation:
2) 6n - 1 = 4n - 5
<u> -4n -4n </u>
2n -1 = 5
<u> +1 +1</u>
<u>2n</u> = <u>6</u>
2 2
n = 3
Answer:
A. 450
Step-by-step explanation:
180 is 40% of the original
450*0.4=180
298*0.4=119.2
240*0.4=96
72*0.4=28.8
so A. 450 is correct
