SAT College

On Friday, Janice read x pages every 30 minutes
for 4 hours, and Kim read y pages every 15
minutes for 5 hours. Which of the following
represents the total number of pages read by
Janice and Kim on Friday?
A) 4x + 5y
B) 8x + 20y
C) 20x + 8y
D) 120x + 75y

Can anyone explain this to me with an answer

Answers

Answer 1

Answer:

B

Explanation:

60÷30=2

2*4=8

8x

60÷15=4

4*5=20

20y

8x+20y

Answer 2

An expression is defined as a set of numbers, variables, and mathematical operations. The correct option is B.

What is an Expression?

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

Given On Friday, Janice read x pages every 30 minutes for 4 hours, and Kim read y pages every 15 minutes for 5 hours. Therefore, the expression that represents the total number of pages read by Janice and Kim on Friday is,

[tex](\dfrac{4 \times 60}{30})x +(\dfrac{5 \times 60}{15})y\\\\= 8x + 20y[/tex]

Hence, the correct option is B.

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Related Questions

examples of digital dedicated line​

Answers

Five types of digital dedicated lines are ISDN lines, DSL, FTTP, T-carrier lines, and ATM. Although cable television (CATV) lines and fixed wireless are not a type of standard telephone line, they are very popular ways for the home user to connect to the Internet.

The recipe for lemonade calls for 2 cups of lemon juice and 5 cups of water. If you follow the recipe, how
many cups of lemon juice will be needed to make 70 cups of lemonade?

Answers

Answer:

I think the answer 28 cups of the lemon juice is needed to make 70 cups of lemonade

The solution For 70 cups of lemonade, 28 cups of lemon juice are required.

What is lemon juice?

Lemonade, a beverage made from lemon juice, water, and sugar, is the most popular use for lemon juice. The juice is most frequently applied in both culinary and non-culinary uses around the world. The acidic content of the juice varies in concentration depending on the type of fruit.

Lemon juice has a wide range of uses, from culinary to medicinal. Lemons are used in beverages, sweets, and as a garnish for dishes with meat and fish. Lemon juice is a natural cleanser and stain remover. Lemon oil provides the aroma for lotions, soaps, and fragrances.

Due to their high citric acid content, lemons have an acidic pH. Lemon juice is 10,000–100,000 times more acidic than water because its pH ranges from 2 to 3.

Thus, The solution For 70 cups of lemonade.

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In the first and last stanzas of the poem, what does the phrase "brimming river' refer to?

a river that is littered with trash

a river that is slowed by curves

a river that is home to fish

a river that is full of water​

Answers

I think the answer is D

Which sentence BEST describes the main message of the passage?


it is unlikely people can read large amounts of text quickly and still understand it.

The idea of being able to read a large amount of material in a short time appeals to many people

Companies that sell speed reading programs are not teaching people anything new.

Those who practice speed reading use methods that are different from those used by most people.​

Answers

Answer:

The idea of being able to read a large amount of material in a short time appeals to many people

Answer:

a

Explanation:

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