Answer:michelle
Step-by-step explanation: it is 70% of the cost since it’s 30% of the original
An inequality to model this would be
7x + 8y ≥ 336.
We multiply the number of minutes running, x, by the number of calories burned each minute by running, 7. We multiply the number of minutes swimming, y, by the number of calories burned each minute by swimming, 8. Adding these together, it needs to be greater than or equal to 336, since she wants to burn at least that many calories.
Answer:
C) y = 60x
Step-by-step explanation:
You need one equation for the physical nickels and dimes, which total to 21:
n+d=21
Secondly, you need one equation for the numerical value of those nickels and dimes. We know nickels are worth $0.05 and dime are worth $0.10:
.05n+.1d=1.70
Answer:
35
Step-by-step explanation:
10 - (-20) turns into 10+20 and 8+(-3) is just 8-3
