MATHEMATICS
MIDDLE SCHOOL

Answer: For example, a final result on a test.. (32.1/50) divide the numerator (32.1) by the denominator (50), then multiply by 100 to get the percent. Hopefully this helped :))

MIDDLE SCHOOL

A gain of 5 yard

write an integer to represent each situation

Answer:+5 or just 5

Step-by-step explanation:

HIGH SCHOOL

What two numbers multiply to get negative 441 and add up to get 0

Twenty one and negative twenty one

MIDDLE SCHOOL

Find a decimal that meets all the following criteria. Rounds to 35 when rounded to the nearest whole number. Rounds to 34.6 when rounded to the nearest tenth. Rounds to 34.65 when rounded to the nearest hundredth

Answer:

34.7

Step-by-step explanation:

Answer:

34.7

Step-by-step explanation:

HIGH SCHOOL

Hich of the following is an equivalent fraction of 2/3? Which of the following is an equivalent fraction of 2/3?

A) 1/3

B) 4/5

C) 4/6

D) 6/10

Answer:

the answer is C) 4/6

4/2= 2

6/2= 3

so when you reduce 4/6 to the lowest fraction you get 2/3

Answer:

c 4/6

Step-by-step explanation:

COLLEGE

Tom is putting cartons of ice-cream in one of the freezers. There are 13 boxes and each box contains 24 cartons. How many cartons of ice-cream are there in total?

24x13=312

There are a total of 312 total ice cream cartons.

There are a total of 312 cartons or ice cream in total.

MIDDLE SCHOOL

There is a sales tax of $22 on an item that costs $272 before tax. The sales tax on a second item is $19.25. How much does the second item cost before tax?

Answer:

$240.63

Step-by-step explanation:

272÷22=.08. That's the tax rate.

Divide the amount of tax by the rate to get the cost of the item.

19.25÷ .08= 240.63

HIGH SCHOOL

The bill was $14.00. She left a 20% tip for the waitress. How much change did she get back from $20.00

20%=0.2

14*0.2 = 2.8 ( $2.80 is the tip she will be giving her)

$14+$2.80 = $16.80 ( what she will be giving in total)

$20-$16.80 = $3.20 (the change she will get back)

14*0.2 = 2.8 ( $2.80 is the tip she will be giving her)

$14+$2.80 = $16.80 ( what she will be giving in total)

$20-$16.80 = $3.20 (the change she will get back)

HIGH SCHOOL

Solve for x: 3 − (2x − 5) < −4(x + 2)

3 − (2x − 5) < −4(x + 2)

3-2x+5< -4x-8

-2x+4x< -8-3-5

2x< -16

x< -16/2

x< -8

x∈(-∞ -8)

3-2x+5< -4x-8

-2x+4x< -8-3-5

2x< -16

x< -16/2

x< -8

x∈(-∞ -8)

HIGH SCHOOL

Question 1(Multiple Choice Worth 1 points) (02.04 LC)

A student is running a 3-kilometer race. He runs 1 kilometer every 2 minutes, Select the function that

describes his distance from the finish line after x minutes.

f(x)=-1/3x+2

f(x)=-1/2x+3

f(x)=1/2x+3

f(x)=1/3x+2

Answer:

f(x)=-1/2x+3

Step-by-step explanation:

In this problem, the student is running a 3-kilometer race.

This means that the total length of the race is 3 km.

We also know that the student runs 1 kilometer every 2 minutes. For a uniform motion, the speed is given by

where in this case,

d = 1 km is the distance

t = 2 min is the time

So the speed is

We can therefore write the distance covered by the student (from the starting line) after x minutes as

However, here we want to write an expression for the distance of the student from the finish line.

Since the distance from the finish line at x = 0 is 3, therefore the distance from the finish line after x minutes is:

d = 3 - y'

So

which corresponds to the option:

f(x)=-1/2x+3