MATHEMATICS MIDDLE SCHOOL

What 4 different mixed decimals that equal 11 wholes

Answers

Answer 1
Answer:

One possible answer is:

1.2 + 2.3 + 3.4 + 4.1

Explanation:

1.2 + 2.3 = 3.5

3.5 + 3.4 = 6.9

6.9 + 4.1 = 11.0
Answer 2
Answer: (1.1)  +  (2.2)  +  (3.3)  +  (4.4)  =  11

Funny how that worked out.

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10q-13-5q=12 Simplify this equation.

Answers

We simplify 10q-13-5q=12 to 5q-13=12. Now, we add 13 to both sides, 5q-13+13=12+13. We should get 5q=25. Finnally, we divide both sides by 5, 5q/5=25/5, Therefore, the answer is q=5

5. A banner is made of a square and a semicircle. The square has side lengths of 26 inches. One side of the square is also the diameter of the semicircle. What is the total area of the banner? Use 3.14 for pi

Answers

Answer: 941.33 square inches

Step-by-step explanation:

Given : The side length of square = 26 inches

Area of square = (side )^2

=(26)^2=676\text{ square inches}

Also, it given that one side of the square is also the diameter of the semicircle.

i.e. diameter = 26 inches

Radius = half of diameter = 13 inches

Then , the area of the semicircle = (\pi r^2)/(2)

=((3.14)(13)^2)/(2)=265.33\text{ square inches}

Now, the  total area of the banner = Area of square +Area of semicircle

=676\text{ square inches}+265.33\text{ square inches}\n\n=941.33\text{ square inches}

Hence, the total area of the banner= 941.33 square inches

1. Kellie and her sister are training for a marathon. Kellie ran 10 mi in 75 min. Ashley ran 15 mi in 120 min. Which statements are true? Show your work. If a statement is not true, explain why. Show your work.
(a) Kellie’s minutes per mile pace was faster than Ashley’s minutes per mile pace.
(b) Kellie ran 8 mph.
(c) Ashley ran 12 mi in 90 min.
(d) Ashley’s total time was 4 min slower than Kellie’s total time after they ran 9 mi.

Answers

Given the data above, Kellie's speed is 2/15 mi/min and Ashley's is 1/8 mi/min. The false statement among the choices is letter c which states that Ashley ran 12 mi. in 90 min. Based on Ashley's data, she ran only 0.125 mi per minute. This means that in 90 minutes, she ran only 11.25 miles. Therefore, the answer is letter c. 

Which of these numbers are exactly divisible by 9? 107,513,944,126,80

Answers


513 and 126 both are. (The question doesn't say
that there's only one of them in the list.)

Here's an easy way to tell:  (I don't know how or why it works,
but it works.)

You're looking at a big number, and you need to find out if it's
divisible by 9.
Here's the two-step process:
-- If it's going to be divisible by 9, then it has to be divisible by 3.
-- Find out whether it's divisible by 3.  If it is, then ...
-- Find out whether it's divisible by 9.

Step 1:
Add up all the digits in the number. If that sum is divisible by 3,
then the original big number is too.

Example:
Is 549 divisible by 3  ?
Add up its digits:  (5 + 4 + 9) = 18 .
Is 18 divisible by 3 ?
Yes.  That tells you that 549 is divisible by 3 .
So it could be divisible by 9.

Step 2:
Take that same  18  and add up its digits.
(1 + 8) = 9.
9 is divisible by 3.
This tells you that the original big number ... 549 ... is also divisible by 9 .

Witch whole number is equivalent to 8/2

Answers

4 is the whole number that is equivalent to 8/2
4 because 8 divided by 2 equals 4

I need help with this! 4-6 those are the questions I need help on

Answers

1. vertical(because they are across from each other when lines cross and form an x)
2. neither
3. adjacent(because they share a side or if you think about it like neighbors share a fence.)
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