MATHEMATICS MIDDLE SCHOOL

What does rounding to the nearest ten square feet mean?

Answers

Answer 1

Answer: Round to the nearest tens place.

Answer 2

Answer:

Final answer:

Rounding to the nearest ten square feet means finding the closest multiple of ten to a given area in square feet.

Explanation:

Rounding to the nearest ten square feet means finding the closest multiple of ten to a given area in square feet. This is done by looking at the tens digit of the number. If the tens digit is 5 or greater, you round up to the next multiple of ten. If the tens digit is less than 5, you round down to the previous multiple of ten. For example, if you have an area of 67 square feet, rounding to the nearest ten square feet would give you 70 square feet.

Learn more about Rounding to the nearest ten square feet here:

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Antonio’s weekly allowance is given by the equation A=0.5c+10, where c is the number of chores he does. If he received $16 in allowance one week, how many chores did he do?

Answers

A=0.5(12)+10= 16. Antonio has 12 chores.

Find the selling price. Explain how you solved the question. I might mark you as brainliest!1) Cost to store: 5o dollars
markup: 10 percent

2) cost to store: 80 dollars
markup 60 percent

3) Cost to store 140$
markup: 25 percent

Answers

Wow ! Now THERE's an incentive ! I'm just glad I got in
early enough so that there's an answer block left open.

If you should happen to glance at these three problems,
you'll notice that they're all the same problem, just with
different numbers. So if somebody showed you how to do
ONE of them, you'd know how to do ALL of them.

1). Markup = 10% of $50 = 0.1 x $50 = $5
   Selling price = ($50 + $5) = $55 .

2). Markup = 60% of $80 = 0.6 x $80 = $48
Selling price = ($80 + $48) = $128 .

3). Markup = 25% of $140 = 0.25 x $140 = $35
      Selling price = ($140 + $35) = $175 .

1) the fraction of 10/50 is convertable to a percantege easily. since 50 is 1/2 of 100, then you know to find 10 percent of 50 is simply to multiply 10 by 2 this gives you 20. add this to 50 and you get 70 2) first find 60 percent of 80. this is 48 add 48 to 80 and you get 128. 3) first find 25% of 140 you get 35. add 35 to 140 and you get 175

Y=2x-20
y=-x+34 it is a substitution method

Answers

I will help you do it the correct way.

To solve by substitution, you must cancel out either x or y.
We will choose x, as -x and 2x are easier to change and cancel.
We multiply the second equation by 2 to make -x -2x, the opposite of 2x in the first equation.

y=-x+34
2(y = -x + 34)
2y = -2x + 78

We add the equations together.

y = = 2x - 20
2y = -2x + 68

y + 2y = 2x - 2x + 68 - 20
Combine like terms
3y = 48

isolate y

3y = 48
/3 /3
y = 16

Now we substitute 16 in for y in an original equation.
Let's choose the first equation.

Y=2x-20
16 = 2x - 20
Isolate x

16 = 2x - 20
+20 +20

36 = 2x
/2 /2
18 = x

x = 18
y = 16

The solution is (18, 16)

To check, substitute both into both equations and see whether or not the equation is true. (you can surely do this on your own)

A store is having a sale on where movies are 15% of their original price. A movie is on sale for $22.10. What is the original price of the movie?

Answers

Answer:

$147.33

Step-by-step explanation:

In order to solve this problem we just have to do a quick reasoning, the problem states that the movies are being sold for the 15% of their original price, so 22.10 represents the 15% of the original price, with this we can just do a rule of thirds to be able to calculate how much is the 100%.

$(15)/(100)= (22.1)/(x)$

Now if we just clear the x we can solve the equation for X.

$x=((22.10)(100))/(15)$

$x=(2210)/(15) \nx=147.33$

So the original price would be 147.33

ok so first off understand what they are saying. there is a movie on sale for $22.10 which is 15 percent of the original price. So now what you do is set up the problem.

22.10 is = 15% of the price

x = 100% of the price (original price)

15 = 22.10
100 x

now just use cross multiplication.

15x = 22.10 · 100

solve for x.

15x = 2210
15 15

x = 147.33333333 since the 3's go on forever you can simply put it into a fraction

x = 147 3
9

whenever there is a repeating number you can put it into a fraction but putting the repeating number over a 9

Please help people omg

Answers

Answer:

Step-by-step explanation:

Because the minus makes the difference between the 2 numbers

C I think not positive Though

Nancy divided her marbles into 4 equal piles. What fraction of the total marbles would 3 piles be?

Answers

Total amount of piles: 4.

3 out of 4 piles would be used, so 3/4 of the total marbles would be in the three piles.

Hope this helps ;)

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