MATHEMATICS MIDDLE SCHOOL

A x b = 15b x c = 30
c x a = 18
what does a, b and c equal?
provide working for answers/explain your answer briefly

Answers

Answer 1
Answer:

Answer:

a=3

b=5

c=6

Step-by-step explanation:

Well,~you~see~it's~all~in~the~mental~workings~and~also~if~you~know~your~\nmultiplication~tables!

→ we~have:

a* b =15~

Now,~where~does~15~fall~in~our~multiplication~table?~5~and~3!~so~that~\nmeans,~a~is~3~and~b~is~5.

→ Now,~we~have:

b* c=30

We~already~know~what~the~value~of~b~is~so~in~the~5's~table,~what~number~gives~us\n~30?~6!~so,~we~know~that~c~is~6.

→ We~also~have:

c* a =18

We~already~know~what~c's~value~and~a's~value~is.~c~is~6~and~a~is~3~so~\nif~we~multiply~them~we~get,~18!

Hope~my~answer~helps!~Have~an~amazing~day~ahead!

-Isabelle~Williams

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8 - 3 ( p - 4 ) = 2p

Answers

 The answer is 4 = P, because you have to distribute then combine like terms.
8-3(p-4)=2p
8-3p-12=2p
-5=2p+3p
-5=5p /:5
p=-1

the rectangles on a quilt are 2in. wide and 3in. long the perimeter of each rectangle is made by pattern of ref thread. if there are 30 rectangles in the quilt, how much red thread is needed

Answers

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Witch shape has 5. Sides

Answers

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What is 3x^2-2n-5=0
please help me!!!

Answers

The answer to your question is: 
It is a quadratic equation in 'x', with 'n' mistakenly typed in the second term..

Although you didn't ask for the solutions to the equation, I'm already here
so I might as well go through it and find them:

3x² - 2x - 5 = 0

In terms of the generic quadratic formula:
A = 3
B = -2
C = -5

Plug those into the quadratic formula, and you discover that

x = -1
and
x = ⁵/₃
3x^2-2x-5=0

(3x-5)(x+1) = 0

3x-5=0

3x=5

x= (5)/(3)

x+1 =0

x=-1

x=-1, (5)/(3)

Y divided by 9 equals 81

Answers

The solution to the equation "Y divided by 9 equals 81" is Y = 729.

To solve the equation "Y divided by 9 equals 81,".

we can multiply both sides of the equation by 9 to isolate the variable Y:

(Y/9) × 9 = 81 × 9

On the left side, the 9s cancel out, leaving us with just Y:

Y = 81 × 9

Multiplying the numbers on the right side, we get:

Y = 729

Therefore, the solution to the equation "Y divided by 9 equals 81" is Y = 729.

To learn more on Equation:

brainly.com/question/10413253

#SPJ6

Answer:

729

Step-by-step explanation:

In order to solve this, you need to do the reverse operation. The question is about division, so that means we are going to do multiplication. If we multiply 9x81, we will know what divided by 9 equals 81.

9x81=729

So 729 divided by 9 equals 81.

To check this just plug the number you got back into the orignal equation:

Y divided by 9 equals 81

729 divided by 9 equals 81

To the nearest hundredth, what is the area of a circle with a radius of 5 units?

Answers

Answer: 78. 571 unit²

Step-by-step explanation:

To find the area of a circle, we simple use the formular;

area of a circle = Πr²

The value of π = 22/7

r= radius of the circle = 5

area of a circle = Πr²

= 22/7 × 5 ×5

=550 / 7

= 78. 57143

=78. 571 unit² to the nearest hundredth

Therefore area of the circle with radius 5cm is 78. 571 unit²

Answer would be: 78.5. best i got
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