Answer:
a=2(s-5)
a(your age): 20
Step-by-step explanation:
a stands for your age
s stands for sister
a=2(s-5)
1-substitute 15 for s a=2(15-5)
2- a=2(10)
the 15-5 stands for sisters age minus five which gives you brothers age, 10. You multiply it by two because your brother is half your age.
3-a=20
check your work:
because your brother is 10 and you are 20, he is half your age (10/20 can be simplified to 1/2)
Hope this helped, if you have any other questions please lmk!
Y=-.5x+3
Explanation: Move the x to the other side by subtracting it from both sides, you end up with 10y=30-5x then you divide 10 from both sides and you end up with y=-.5x+3
Work shown above! Answer is A = (πD^2)/4. d = diameter
Hope this is what you were looking for!
Answer:
198 g
Step-by-step explanation:
Let y = the new weight
the healthy cub gains 7% of its newborn weight per day = 0.07 × 100 = 7 g
after d days
y = 100 + 7 d
after 14 days,
the new born will weigh = 100 + (7 × 14) = 100 + 98 = 198 g
53% I believe I'm OK in math
