MATHEMATICS MIDDLE SCHOOL

I need help with number 2!!

Answers

Answer 1

Answer:

Answer:

B=8

Step-by-step explanation:

15² + b² = 17²

225 + b² = 289 (Subtract 289 - 225)

b² = 64 (Find the square root of 64)

√64 = 8

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Mr. Glidden is expanding the size of his garden. His new garden will be 3 times as long and 2 times as wide as his original garden. The perimeter of his original garden is 30 feet and the length is 11 feet. What will be the perimeter, in feet of his new garden?

A bag contains 8 blue marbles, 6 green marbles, 12 yellow marbles, and 10 orange marbles. A marble is drawn at random from the bag. What is the probability that the marble drawn will not be blue?

Answers

Using it's concept, it is found that there is a 0.7778 = 77.78% probability that the marble drawn will not be blue.

What is a probability?

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this questions, there are 8 + 6 + 12 + 10 = 36 marbles, of which 36 - 8 = 28 are not blue, hence the probability is given by:

p = 28/36 = 0.7778 = 77.78%

More can be learned about probabilities at brainly.com/question/14398287

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Answer:

7/9

Step-by-step explanation: I took the test

I need help with this question

Answers

Answer:

61 cm for each book shelf.

Step-by-step explanation:

First it gives you the width of the boxes so you add them together

132 + 108 + 94 = 334

so 334 cm has already been used out of 456 cm.

Next you will 456 - 334 = 122 cm left over

if they are building 2 book cases you with take what cm's you have left and divide it by 2

122 / 2 = 61

So that means each book case will be 61 cm's wide

What is the value of x in the equation ?StartFraction 2 Over 3 EndFraction left-parenthesis StartFraction one-half EndFraction. x plus 12 right-parenthesis equals left-parenthesis StartFraction one-half EndFraction left-parenthesis StartFraction one-third EndFraction x plus 14 right-parenthesis minus 3.
StartFraction one-half EndFraction left-parenthesis n minus 4 right-parenthesis minus 3 equals 3 minus left-parenthesis 2 n plus 3 right-parenthesis.
2
13

Answers

Answer:

the answer is n=2

Step-by-step explanation:

52 companies; 25% increase find original amount?

Answers

To find your answer, you would find 25% of 52. To find 25% of 52, you would multiply 52x.25.
52x.25=13
Now you need to subtract 52-13. 52-13 is 39. The original amount is 39 companies.

Macy has some ropes, each 2 feet long. Nellie has some ropes, each 3 feet long. Oscar has some ropes, each 5 feet long. What is the length of each line of ropes when they are of the same length?

Answers

they should be altogether for 10 feet long

What is the surface area of a cube with faces that each have an area of 16 cm2?

Answers

To find out what one side measures you will have to take the square root of the Area.

$√(16) =4$

To find out surface area of the cube you use the formula $A=6 a^(2)$ , where a = side.

Therefore,
$A=6 (4^(2))$
$A=6 (16)$
$A=96cm^(2)$

The cube have 6 faces.
The area of the one face is equal 16 cm².

Therefore:
Surface area of the cube: S=6 × 16 cm² = 96 cm²

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