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2 years ago

4r + 9r- 11r +7rSimfly the expressions by combing like terms??

2 answers:

7 0

Solve this one in exactly the same way as I solved the one
that you posted 1 minute before this one.

-- add up all the ' r 's .

-- add up all of the just-plain-numbers

This time, the answer looks like 9r .

You should spend a few minutes with it so that
you know where this answer comes from.

Alex787 [66]2 years ago

6 0

9r because 4+9 is 13+7 is 20-11 is 9

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Answer:

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2 years ago

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How many different 11-letter arrangements can be made using the letters in the word Firecracker?

zhenek [66]

Answer:

Total number of arrangements = 1,663,200

Step-by-step explanation:

Given:

11 - letter

FIRECRACKER

F = 1

I = 1

R = 3

E = 2

C = 2

A =1

K = 1

Find:

Total number of arrangements = ?

Computation:

Note: Repeated letter will be avoid.

$Number\ of\ arrangements = \frac{!11}{!3 \times !2 \times !2}\\\\Number\ of\ arrangements = \frac{!11}{!3 \times !2 \times !2} \\\\Number\ of\ arrangements = \frac{11 \times 10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times 3}{3 \times 2 \times 2 } \\\\Number\ of\ arrangements = 1,663,200$

Total number of arrangements = 1,663,200

6 0

3 years ago

Identify the new fractions with the common denominator. 2/5 + 1/3

xxMikexx [17]

Answer:

11/15

Step-by-step explanation:

2/5 + 1/3

6/15 + 5/15 (which are equivalent fractions of 2/5 and 1/3 respectively)

11/15

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3 years ago

A stew recipe calls for 3.75 pounds of meat. Jack wants to make 5 batches of stew. How many pounds of meat does he need?

suter [353]

You would take 3.75 • 5, which equals 18.75!

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2 years ago

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