Pilar started with 80 and adds 10 each week.
y= 10x + 80 (ten seashells • weeks + 80 she started with)
Marisol started with 0 and adds 20 each week.
y = 20x (no need to add + 0 because she started with nothing)
Inequality:
y = 10x + 80 < y = 20x
Weeks:
I would reccomend just plugging in numbers (for example if I put in 5 I would determine if it was too high or low then go to the next number.)
I plugged it into an online graph so I can’t show my work but the answer is 8 weeks.
45 is 75% of what?
45 is 75% of X
Equation: Y = P% * X
Solving our equation for X
X = Y/P%
X = 45/75%
Converting percent to decimal:
p = 75%/100 = 0.75
<span>X = 45/0.75 </span>
<span>X = 60
Hope I helped!
Let me know if you need anything else!
~ Zoe</span>
Answer:
use brainly points
Step-by-step explanation:
An easier way to write this would be -9-15, which we can solve just by counting backwards for 15 numbers from -9. When we do this, we can see that his expression is equal to -24.
