Answer: Kristina sister's age = 15 years
Step-by-step explanation:
LET the sister's age be rep as x
SO that Kristina = 4/5 of x
Given that Kristina's age = 12 , Then her sister's age can be found using The equation
4/5 x X= 12
4/5 X =12
X = 5 X 12 / 4
=60/4=15
Kristina's sister's age = 15 years.
Step-by-step explanation:
Judging from the high of 400, her day 21 appears to be approx 300
if she put in 100 then the next five days she added a total of 200 more to reach 300
200/5 = $40 / day
Answer:
x=1/14
Step-by-step explanation:
2/7x+2=6
left part times 7x = right part times 7x is:
2+14x=42x
2=28x
x=1/14
You would do 300• 31/100 to get 90. I’m pretty sure that’s right
98.368 Because you multiply the two together to get 98.368. Try to use a calculator next time.
