MATHEMATICS HIGH SCHOOL

The school café charges $3 for hot lunch. This amount is automatically withdrawn from a student's lunch account each day they purchase. If Kelsey purchased hot lunch all 5 days last week, how much did her lunch account change?

Answers

Answer 1

Answer:

Answer:

15 dollars

Step-by-step explanation:

you do 3 × 5 which will give you 15

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Multiply c^2(c^2-10c+25)

Answers

Step-by-step explanation:

c^2( c^2-10c+25)

=c^4 - 10c^3 + 25c^2

At Southside Middle School, 20% of the students play an instrument. There are 305 students. How many students play an instrument?/

Answers

Answer:

61 students

Step-by-step explanation:

When finding the percentage of a number, you can simply cross multiply and divide:

we can remove the percentage symbol…

$20*305=\n 6100$

Now 6100 divided by 100 is:

hope this helps!

Computer usage has increased over time. But has the increase been more linear or more exponential? In 1997, 22.2% of the population over three years of age, or about 60 million people, used the internet. In 1998, 32.7% of the population over three years of age, or about 90 million people, used the internet. a. If the usage increased linearly, write the linear function that would give 60 million people in year 0 and 90 million in year 1.