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Naya [18.7K]
3 years ago
9

Pens cost $p exercise books cost $b. Write an algebraic expression that represent the cost of purchasing 20 pens and 8 exercise

books.
Mathematics
2 answers:
strojnjashka [21]3 years ago
6 0

Answer:

20p+8b

Step-by-step explanation:

pens=p

books=b there fore

20p+8b

Blababa [14]3 years ago
4 0

Answer:

Step-by-step explanation:

Cost of one pen = $p

Cost of 20 pens = p*20 = 20p

Cost of  an exercise book = $b

Cost of 8 exercise book = b*8 = 8b

Algebraic expression:

20p + 8b

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Which are correct representations of the inequality 6x ≥ 3 + 4(2x – 1)? Check all that apply.
Verdich [7]

Answer:

6x ≥ 3 + 4(2x - 1)

⇔ 6x ≥ 3 + 8x - 4        => remove the parentheses

⇔ 6x - 8x ≥ 3 - 4

⇔ -2x ≥ -1

⇔ 2x ≤ 1 (or 1 ≥ 2x)

⇔ x ≤ 1/2

⇔ x ≤ 0.5

The answer for the question should be:

1 ≥ 2x

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and the first graph.

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3 years ago
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1 + 1 = A 4 B 37 C 69 D. i. c. k
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Answer:

It is 2

Step-by-step explanation:

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3 years ago
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One number is 8 more than another number, and their sum is 16. What are the 2 numbers?
gayaneshka [121]

Answer:

x = 12

y = 4

Step-by-step explanation:

x + y = 16

x - y = 8

y + 8 = x

Replace x with y + 8 in the new equation

8 + 2y = 16 ----> we can minus 8 on both sides

2y = 8 -----> divide both sides by 2

y = 4

Now for the x value

x + 4 = 16 ----> minus 4 on both sides

x = 12

5 0
3 years ago
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How many minutes are there between 8:20 p.m. and 10:05 p.m.​
Fed [463]

Answer:

105 minutes.

Step-by-step explanation:

first you would subtract 60 by 20 to get 40 then your time would be at 9:00 so in order to get to 10:00 you would have 60 minutes which you would add the 40 to to get 100 minutes then add 5 to bring your time to 10:05 and your total number of minutes to 105

7 0
3 years ago
you take out a mortgage for 350,000$ at 4% compounded monthly your payment is 1671$ write a recursive formula
Ymorist [56]

Answer:

Not sure if this is right but it might be something like

350,000-4%+1671m

or

3500,000-4%y/1671m

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The numbers we know are 350,000 4% and 1671 per month

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and we know the monthly for the mortgage is 1671 per month

4 0
3 years ago
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