Week 1 = 5 guppies.
week 2 = 5x 2 = 10 guppies
week 3 = 10 x 2 = 20 guppies
week 4= 20 x 2 = 40 guppies
week 5 = 40 x 2 = 80 guppies
week 6= 80 x 2 = 160 guppies
Yuki had 160 guppies in 6 weeks.
Answer:
B) 25% of her students are in chemistry.
Step-by-step explanation:
There were 0.1, or 10%, of freshmen in chemistry. There were 0.25, or 25%, of sophomores in chemistry. This is a total of 0.1+0.25 = 0.35, or 35%.
This is not 25%.
Answer:

Step-by-step explanation:
we have a exponential function of the form

where
y is the population of San Francisco
x is the number of years
a is the initial population
b is the base
r is the rate of grown
b=(1+r)
In this problem we have


ordered pair (6, 870,887)
substitute in the exponential function 

Solve for a


so
The exponential function is equal to

In 5 more years the number of years will be equal to
6+5=11 years
For x=11 years
substitute the value of x in the exponential function and solve for y


Answer:
10kg and 60 kg.
Step-by-step explanation:
Let the kid's mass be x kg, then the goat's mass is 6x.
x + 6x = 70
7x = 70
x = 10.