MATHEMATICS MIDDLE SCHOOL

What is the reciprocal of
15/4 .... is there one?

Answers

Answer 1
Answer:

The reciprocal of 15/4 is 4/15

for any number x the reciprocal is given by (1)/(x)

The given number here is (15)/(4)

Hence the reciprocal is given by  (1)/((15)/(4) )

which is equal to (4)/(15).

For more information follow the link given below:

brainly.com/question/21977279
Answer 2
Answer: The reciprocal of a fraction is basically the fraction flipped. The reciprocal of 15/4 would be 4/15. 

Answer: 4/15

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3/y=6/y-2solve for yplease I need help
Which number is three tenths less than twenty for and twenty hundredths please answer
Please answer the question from the attachment.
Can someone help me with this???​
How many seconds in 35 minutes

The object on the right is made from a square based pyramid...

Answers

Answer:

7.81\ g/cm^3

Step-by-step explanation:

step 1

Find the volume of the cuboid

The volume is equal to

V=(6^2)(9)=324\ cm^3

step 2

Find the mass of the cuboid

Remember that

The density is equal to divide the mass by the volume

so

The mass is equal to multiply the volume by the density

m=(324)(0.68)=220.32\ g

step 3

Find the mass of the square base pyramid

subtract the mass of the cuboid from the total mass

970-220.32=749.68\ g

step 4

Find the volume of the pyramid

The volume is equal to

V=(1)/(3)(6^2)(8)= 96\ cm^3

step 5

Find the density of the steel (pyramid)

divide the mass of the pyramid by the volume of the pyramid

749.68/96=7.81\ g/cm^3

You have prizes to reveal! Go to your game board. xThe surface area of this cube is 96 square meters. What is the value of y?9 m6 m4 m3 m

Answers

since cube has all sides equal and therefor al sides equal aera and 6 sides
SA=6s^2
96=6s^2
divide both sides by 6
16=s^2
sqrt both sides
4=s=y

4 is answer
the value of y= 4 m
because there are 6 faces each face has an area of 16 (4×4)
16×6=96

hope this helps

Andrew Shapiro has a single membership in his company’s medical insurance program. The total cost is $5,360 annually and his employer pays 75% of the total cost. He also pays for the optional annual dental premium of $600 and the optional vision premium of $200 per year. His contribution is deducted monthly from his paycheck. How much is Andrew’s monthly deduction?

Answers

Answer:

$178,33

Step-by-step explanation:

Let's calculate Andrew's total yearly costs first.

The cost of the program is $5,360 annually, which is paid at 75% by the employer.

So, how much does the basic plan costs to Andrew per year?

He has to pay the remaining 25% so 25% of $5,360 is $1,340

He then chose to enroll in the dental and vision premium plans:

Dental: $600

Vision: $200

So, in total, Andrew's costs are $1,340 + $600 + $200 = $2,140

Assuming he pays that in equal payments each month, his monthly cost/deduction will be: $2,140 / 12 = $178,33

it said to find an equivalent fraction, divide both the numerator and denominator by the same number,such as 4. How can i do that?!?!?

Answers

So if you had the fraction 2/8 and 1/4 you would divide both 2 and 8 by 2 giving you 1/4. Now you have the fractions 1/4 and 1/4.

need help with math build an equation that is equivalent to the equation k=19 and also put answer in words

Answers

"The variable K is equivalent to 19."
As for the equation, it could be

k=19+0

or 1k= 10 + 9

or 1k = 19

4(x + 3) + 2x = 6(x + 2)5 + 2(3 + 2x) = x + 3(x + 1)

5(x + 3) + x = 4(x + 3) + 3

4 + 6(2 + x) = 2(3x + 8)

which one has no solutions ?

Answers

The second option is your answer. 

5 + 2(3 + 2x) = x + 3(x + 1)
5 + 6 + 4x = x + 3x + 3
11 + 4x = 4x + 3

Subtract 4 from both sides. You are left with an untrue statement:
11 = 3
11 ≠ 3 so therefore your answer is no solution. 
Let’s try to look at each one.

First one:
4(x+3)+2x=6(x+2)
We can multiply.
4x+12+2x=6x+12
By looking at this, you can tell it’s equal due to the fact when you add like terms, they will have to same answer.

Second one:
5+2(3+2x)=x+3(x+1)
Let’s multiply.
5+6+4x=x+3x+1
I can already tell this isn’t equal. One has +11 and the other has +1. To make sure, let’s have x=1
5+2(3+2)=1+3(1+1)
5+2(5)=1+3(2)
5+10=1+6
15=7
7 and 15 are not the same number, so the second one doesn’t have any solutions.
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