1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
miss Akunina [59]
3 years ago
7

Simplify the expression:3(7r + 1) =​

Mathematics
2 answers:
kozerog [31]3 years ago
8 0

Answer:

21r +3

Step-by-step explanation:

3(7r + 1) =​

Distribute

3*7r +3*1

21r +3

Andreas93 [3]3 years ago
4 0

Answer:

21r+3

Step-by-step explanation:

3(7r + 1)

Use the distributive property.

This property is normally used when the 2 numbers inside of the parentheses can not be added easily.

3*7r+3*1

21r+3

You might be interested in
You make one pitcher of iced tea and one pitcher of lemonade for a party. Just before the party starts, you catch a little misch
mario62 [17]

Answer:

  Each pitcher has the same fraction of the other drink.

Step-by-step explanation:

After 1 cup of tea is added to x cups of lemonade, the mix has the ratio 1:x of tea to lemonade. So, the fraction of mix that is tea is 1/(x+1).

The 1 cup of mix contains 1/(x+1) cups of tea and so x/(x+1) cups of lemonade. When that amount of lemonade is added to the tea, it brings the proportion of lemonade in the tea to (x/(x+1))/x = 1/(x+1), the same proportion as that of tea in the lemonade.

_____

You can consider the degenerate case of one cup of drink in each pitcher. Then when the 1 cup of tea is removed from its pitcher and added to the lemonade, you have a 50-50 mix of tea and lemonade. Removing 1 cup of that mix and putting it back in the tea pitcher makes there be a 50-50 mix in both pitchers.

Increasing the quantity in each pitcher does nothing to change the fact that the mixes end up in the same ratio:

  tea:lemonade in Pitcher 1 = lemonade:tea in Pitcher 2

6 0
3 years ago
Classify the real number. (Choose all that apply). –9 A.) Rational B.) Whole C.) Irrational D.) Natural E.) Integer
IRISSAK [1]
Whole numbers are the numbers 0, 1, 2, 3, 4 and so on and negative numbers are not considered whole numbers.

natural numbers are called the counting numbers that are the numbers 1, 2, 3, 4, and so on. they are positive numbers and zero is not considered a natural number as you can see.

integers are all the whole numbers and their opposite (negative) but negative numbers are NOT whole or natural numbers. fractions and decimals are not integers.

rational numbers are numbers that include all the integers, plus all fractions, or terminating decimals and repeating decimals.

irrational numbers are an infinite number of digits to the right of the decimal point, without repeating.


so your answer is integer and rational, hope this helped! :)
6 0
3 years ago
Pls help need it done pls
Harman [31]

Answer:

1/4 +m = 2/3

Step-by-step explanation:

3 0
3 years ago
A number added to itself is one
Ivenika [448]
The number would be .5 I'm pretty sure
6 0
3 years ago
Which way shows one way you can decompose 15 to find 42 x 15?
soldier1979 [14.2K]

Answer:

42 * 10 + 42 * 5

which agrees with the third option (C) shown on the list of possible answers

Step-by-step explanation:

Notice that using distributive property we can write:

42 * 15 = 42 (10 + 5) = 42 * 10 + 42 * 5

which agrees with the third option (C) shown on the list of possible answers.

5 0
2 years ago
Other questions:
  • A cyclist travels 7 hours at a speed of 11 miles per hour.how far does the cyclist travel?
    5·2 answers
  • Solve by factoring: 2sinxcosx=sinx in [0,2π)
    15·1 answer
  • Can someone help me please ?
    14·1 answer
  • A politician wants to distribute campaign flyers to 8000 homes in his district. The color flyers cost him $0.08 each, and the bl
    9·1 answer
  • Find f(-3) for the function f(x)=x^2-8x
    7·2 answers
  • The ratio of students in Jamie's class to have a dog or cat home to those who don't is 12 to 8 what percent of the class do not
    10·1 answer
  • Consider three independent rolls of a fair six-sided die. (a) What is the probability that the sum of the three rolls is 11? (b)
    10·1 answer
  • Is Andrew correct or incorrect explain
    5·2 answers
  • Write an inequality that represents the verbal expression.
    15·1 answer
  • 1. Adelle solved the equation ½ (x + 8) = - 30 as shown.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!