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3 years ago

Simplify the expression: 3(3 + 7b)

Mathematics

2 answers:

Stels [109]3 years ago

8 0

Answer:

9 + 21b

Step-by-step explanation:

I) Distribute the terms:

3(3 + 7b) = 3(3) + 3(7b)

II) Solve:

3(3) = 9

3(7b) = 21b

9 + 21b

cupoosta [38]3 years ago

4 0

Answer:

The answer is 9 + 21b

Step-by-step explanation:

Simplify the expression.

~Hoped this helped~

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Express 432 as a product of prime factors

laiz [17]

Here's the answer
432=2^4 x 17

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3 years ago

What is the value of x in this proportion?

schepotkina [342]

Answer:

(a) -20 1/2

Step-by-step explanation:

The proportion can be solved using "cross multiply" as the first step. This eliminates the fractions and turns it into a linear equation.

2/7 = -5/(x +3) . . . . . given

2(x +3) = -35 . . . . . . multiply by 7(x +3)

2x = -41 . . . . . . . . . simplify, subtract 6

x = -20 1/2 . . . . . . divide by 2

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3 years ago

Michael bought a box of 20 pretzel rods for $4.40. what is the price per pretzel rod?

oksian1 [2.3K]

4.40÷20=0.22
$0.22per pretzel rod

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4 years ago

How many years will it take each situation to double its money? Situation A: Matthew invests $5,000 in an account with a compoun

algol [13]

Answer:

Matthew's money will double fastest in 6 years.

Step-by-step explanation:

The complete question is

Answer the question for each scenario by applying the rule of 72. How many years will it take each situation to double its money? Situation A: Matthew invests $5,000 in an account with a compound interest rate of 12%. Situation B: Morgan invests $2,500 in an account with a compound interest rate of 8%. Situation C: Maysen invests $10,000 in an account with a compound interest rate of 4.5%. Whose money will double fastest?

we know that

The Rule of 72 is a simple way to determine how long an investment will take to double given a fixed annual rate of interest. By dividing 72 by the annual rate of return.

Situation A: Matthew invests $5,000 in an account with a compound interest rate of 12%

$\frac{72}{12}=6\ years$

Situation B: Morgan invests $2,500 in an account with a compound interest rate of 8%.

$\frac{72}{8}=9\ years$

Situation C: Maysen invests $10,000 in an account with a compound interest rate of 4.5%

$\frac{72}{4.5}=16\ years$

therefore

Matthew's money will double fastest in 6 years.

7 0

3 years ago

Round 672,831 to the nearest ten thousand

Alik [6]

Well, you just have to take what I said before:

1=ones digit
3=tens digit
8=hundreds digit
2=thousands digit
7=ten thousands digit
6=ten thousands digit

So like previous answers, you just look at the digit after the one being asked

So look at the thousands place. 2,831 or 2,000 since all numbers after that digit is irrelevant

Is 2,000 or 2,831 over the halfway point to 10,000? The halfway point being 5,000

No, it is not so that means 2,831 is closer to 670,000 rather than 680,000

Answer: 672,831 rounded to the nearest ten thousand IS 670,000

7 0

4 years ago