MATHEMATICS MIDDLE SCHOOL

Solve for y:-

10 + y = 28

Thanks!

Answers

Answer 1
Answer: To solve for y we have to use the INVERSE OPERATION of addition which is subtraction. Lets do it:-

10 + y = 28
y = ?
28 - 10 = y
28 - 10 = 18
y = 18

CHECK OUR WORK:-

10 + y = 28
y = 18
10 + 18 = ?
10 + 18 = 28
We were RIGHT!!!!

So, y = 18.

Hope I helped ya!! xD
Answer 2
Answer: Use the inverse operation to solve for x. 

10 + y = 28

10 + y = 28

y = 28 - 10

Answer:  y = 18

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The figure is made up of a cylinder and a sphere which has been cut in half. The radius of each half sphere is 5 mm. What is the volume of the composite figure? Use 3.14 for Pi. Round to the nearest hundredth. A cylinder and 2 half spheres. All have a radius of 5 millimeters. The cylinder has a height of 10 millimeters. Recall the formulas V = B h and V = four-thirds pi r cubed 376.80 cubic millimeters 847.80 cubic millimeters 1,177.50 cubic millimeters 1,308.33 cubic millimeters

Answers

Answer:

1308.33 {mm}^(3)

Step-by-step explanation:

The volume of the composite shape is given by:

Volume of cylinder +volume of two spheres.

The volume of cylinder

= \pi \: {r}^(2) h

We substitute r=5mm and h=10mm

The volume cylinder becomes

= \pi \: * {5}^(2) * 10 \n = 250\pi

= 250 * 3.14 \n = 785 {mm}^(3)

The volume of the two hemispheres

= (4)/(3) \pi {r}^(3)

We substitute the radius to get:

= (4)/(3) * \pi * {5}^(3) \n = 523.33 {mm}^(3)

We add the two volumes to get:

= 785 + 523.33 = 1308.33 {mm}^(3)

Answer:

the answer is c

Step-by-step explanation:

I just took the test

Ella conducted a survey to find out the amount of time high schoolers spend surfing the Internet. From the data collected, the range of time spent was 1 hour. What does this range say about the data? A. All the students surveyed spend exactly 1 hour surfing the Internet.
B. All the students surveyed spend an average of 1 hour surfing the Internet.
C. The difference between the greatest amount of time and the least amount of time spent surfing the Internet is 1 hour.
D. The quotient between the greatest amount of time and the least amount of time spent surfing the Internet is 1 hour.

Answers

The answer is C.

Because we do not have any tables graphs etc., we can only use the fact that the range is 1

The definition of range is the difference between the largest amount and the smallest amount. In equation form, it should look like this: Largest-Smallest

Now lets move to the answer choices:

Answer A. is wrong
If everyone surfed for exactly an hour, the largest amount of time would be 1 hour and the smallest amount of time would also be 1 hour. Put this into the equation and the range would be 0 which is contradicted from the data present

Answer B. is wrong because the range is not the average, the mean is the average. We are looking for the range, not the mean so Answer B. is incorrect.

Answer C. is correct. The range is the difference between the largest and the smallest. In this answer, it tells us that the range is the difference between the greatest amount of time and the least amount of time spent surfing the Internet is 1 hour. This follows the term of "Range" and therefore, Answer C. is correct.

Answer D. is incorrect because the range does not have anything to do with quotients.(By the way, a quotient is the result of dividing a dividend with a divisor.) The range is only obtainable with subtraction, not division, so answer D. is incorrect.

Answer:

C

Step-by-step explanation:

I took the test

Davia draws a shape with 5 sides tow sides are each 5 inches long.tow other sides are each 4 inches long.the perimeter of the shapes is 27 inches. What is the length of the fifth side?

Answers

Perimeter = the sum of all sides
Because we know that 2 sides are 5 inches and that 2 other sides are 4 inches long, we can subtract this number from the total 27 to get the 5th side.      5+5+4+4 = 18        27-18= 9
The fifth side = 9 inches

Ryan transfer 15% of his monthly pay into a savings accounts. If max make $1850 per month, how much will he save in a year?

Answers

Answer:

$3330.

Step-by-step explanation:

We first have to calculate how much he transfer monthly, to do that, we have to find the 15% of $1850.

0.15(1850)=277.50

So, he transfer $277.50 per month, in a year would be:

277.50(12)=3330

Therefore, after one year, he will save $3330.
He will save $3330 in a year.

the RATIO of floor seats to balcony seats in a theaters is 20:1. does this theater have more floor seats or more balcony seats? how do you know? SHOW WORK! PLEASE HELP!

Answers

Yes, this theater has more floor seats than balcony seats simply because of the ratio. Your answer is actually in the question. For example, if you have 100 floor seats, then according to the ratio you should only have 5 balcony seats.  So yes, there are more floor seats than balcony seats.

Henry has a bag of marbles. six of them are striped. The other half of the marbles are not striped. How many marbles does Henry have?

Answers

Answer:

12

Step-by-step explanation:

6 are striped which is half of them, the other half must be 6 then

6+6=12

Answer:

any one got discord

Step-by-step explanation:

it is an app
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