MATHEMATICS MIDDLE SCHOOL

Help me answer this plz I really need help

Answers

Answer 1

Answer:

Answer:

E (b/3) +3

Step-by-step explanation:

3c =b

c+3 = ?

Solve the first equation for c

3c=b

Divide by 3

3c/3 = b/3

c = b/3

Now replace c with b/3 in c+3

c+3

(b/3) +3

Answer 2

Answer:

Answer:

Answer E. is correct

Step-by-step explanation:

b = 3 * c --> c = 1/3 * b

c + 3 = 1/3 * b + 3 --> E.

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How many tenths are there in 1 3/5

Answers

if you count the whole number it would be 16

16, you have ten tenths in the 1 and 6 in the 3/5

Nine tenths of a sum of money is 45. Find the whole amount

Answers

If you would like to know the whole amount of money, you can calculate this using the following steps:

nine tenths of a sum of money is 45
9/10 * x = 45 /*10
9 * x = 45 * 10 /9
x = 45 * 10 / 9
x = 50

Result: Nine tenths of 50 is 45.

The answer is 50.

First do 45 divided by 9 which is 5 then times by 10 results in 50.

A way to check this is by then finding 1/10 of 50 which is 5 then X by 9 is 45, which is what you originally started with.

1. How many solutions are there for the equation? x2 + 16 = 8x (Points : 1) 2
1
0

Answers

$x^2 + 16 = 8x\n\nx^2-8x+16=0\n\nx^2-4x-4x+16=0\n\nx(x-4)-4(x-4)=0\n\n(x-4)(x-4)=0\n\n(x-4)^2=0\ \ \ \Leftrightarrow\ \ \ x-4=0\ \ \ \Leftrightarrow\ \ \ x=4\n\n Ans.\ One\ solution$

Every equation that has an ' x² ' in it has two solutions.

If it's a perfect square, then the solutions are equal, and they look like only 1.

Both solutions to this equation are [ x = 4 ] .

What two mixed numbers have a sum of 3

Answers

There are a few combinations of mixed numbers that can have a sum of 3. A mixed number must have one whole number and one fraction. Combinations of mixed numbers that can have a sum of 3 are 1 and 1/2 + 1 and 1/2, 1 and 1/3 + 1 and 2/3, 1 and 5/8 + 1 and 3/8 and so on.

Answer:

1 and 2

Step-by-step explanation:

1 + 2 = 3

sum = addition

If you get 12 how many do you have to get wrong to get an 58%

Answers

Answer:

I'm gonna take some liberty. I assume you mean if there is 12 questions. if so that means you would need to get 5 wrong.

Step-by-step explanation:

Here are step-by-step instructions showing you how we calculated 7 out of 12 as a percentage: The first step is to divide 7 by 12 to get the answer in decimal form: 7 / 12 = 0.5833. Then, we multiplied the answer from the first step by one hundred to get the answer as a percentage: 0.5833 * 100 = 58.33%

A family paid $142.80 which include $6.80 in taxes for 4 play tickets. Each ticket costs the same amount. How much did each person ticket cost before tax was added?

Answers

$34.00, you just subtract the tax and then divide by 4 since you bought 4 tickets and they were all the same price

34 dollars . Just subtract the tax and divide by 4

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