MATHEMATICS MIDDLE SCHOOL

What is the answer for r+11+8r=29?

Answers

Answer 1
Answer:

The value of r is 2 in the equation r+11+8r=29.

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

The given equation is r+11+8r=29

r plus eleven plus three times of r equal to twenty nine.

In the equation, r is the variable.

Add the like terms in the equation.

9r+11=29

Isolate the r term by subtracting 11 from both sides

9r=29-11

9r=18

Divide both sides by 9

r=2

Hence, the value of r is 2 in the equation r+11+8r=29.

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Answer 2
Answer: The answer is r=2 because you add the r's together and get 9r so then the problem is 9r+11=29. You subtract 11 from 29 and now the problem is 9r=18, now you divide 9 from 18 and get 2.

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Answers

Answer:

6.818181...

Step-by-step explanation:

What two facts can you double to find 8x4?

Answers

The two facts which could be doubled to obtain the product of 8 and 4 is (4 and 4)

Two facts of a number doubled can be represented as :

  • 2 × b = c

The value c here is (8×4) = 32

Substituting the values into the expression and solving for b :

2 × b = c

2 × b = 32

Divide through by 2

b = 32 / 2

b = 16

Hence, two facts that can be doubled is (4 × 4)

2(4 × 4) = 2(16) = 32

Therefore, the two facts which could be doubled are (4 and 4)

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What is 25/1000 reduced

Answers

When we are reducing we divide numerator and denomerator by the same number.
(25)/(1000)= (25:5)/(1000:5)= (5)/(200)= (5:5)/(200:5)= (1)/(40) - its reducoed form

What is 50/100 as a decimal

Answers

Okay so, we divide 50 by 100. 50/100=0.5. Therefore, 50/100 as a decimal is 0.5 Hoped I helped. :)
0.500000. To get 50/100 converted to decimal, you simply divide 50 by 100.

Cassidy deposited $500 into a money market account that paid 7% interest compounded monthly. How much did she have to the nearest cent when she turned 30? (She is 16 now).

Answers

Cash deposited = P = $500
Interest rate = r = 7% = 0.07
Compounding Frequency = n = 12
Time = t = 30 - 16 = 14 years
Amount accumulated = A = ?

Formula to be used:

A=P(1+ (r)/(n))^(nt)

Using the values, we get:

A=500(1+ (0.07)/(12))^(12*14) =1328.44

This means, $1328.44 will be her balance at the age of 30.

Factor each expression 8+16

Answers

The individual factors for each integer along with the common factors and greatest common factorwill be shown. Factors of 18 are 1, 2, 3, 6, 9, 18. Factors of 36 are1, 2, 3, 4, 6, 9, 12, 18, 36. Factors of 48 are 1, 2, 3, 4, 6, 8, 12,16, 24, 48.

it would be 8 + 16 =8 (1 + 2) because

the GCF is 8 so,

8 (1) + 8 (2)

which would equal to :

8 + 16 = 8 (1 + 2)
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