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3 years ago

Different forms of numbers three hundred twelve

Mathematics

1 answer:

Tanzania [10]3 years ago

4 0

312? Is this what ur asking

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Evaluate 3/7r + 5/8s when r= 14 and s= 8

jasenka [17]

Answer:

Step-by-step explanation:

Step 1:

3/7r+5/8s

Step 2:

So u multiply 3/7 by 14

3/7 x 14= 42/7= 6

Step 2.5:

Now u multiply 5/8 by 8

5/8 x 8= 40/8= 5

Step 3:

6 0

3 years ago

Your friend has owned a dog for nine years this is one year less than twice as long as he owned a cat how long has your friend o

Oduvanchick [21]

Answer:

He owned Cat for 5 years.

Step-by-step explanation:

Given: Owned dog for 9 years.

Dog owned year is one year less than twice as long as he owned a cat.

Lets assume the years that cat has been owned be "x".

Now, finding the number years that Cat hes been owned.

As given, Dog owned year is one year less than twice as long as he owned a cat.

∴ using equation to find the Cat´s owned years.

⇒ $2x-1= 9$

adding 1 on both side.

⇒ $2x= 10$

dividing both side by 2

⇒ $x= \frac{10}{2}$

∴x= $5\ years$

Hence, Cat has been owned for 5 years.

6 0

3 years ago

If the length of a rectangular garden is 2 feet less than the length of a house and the width of the garden is 5 feet less than

Goshia [24]

Answer:

A(h) = h²/2 - 6*h + 10

Step-by-step explanation:

The garden is rectangular, and area of a rectangle is:

A(r) = L*w

Where L is the length and w is the width of the rectangle

Now if we call "h" the length of the house, we have the following expressions

L = h - 2 and

w = h/2 - 5

The expression for the area f the ectangle as a function of the length of the house is:

A(h) = ( h - 2 )* ( h/2 -5 )

A(h) = h²/2 - 5*h - h + 10

A(h) = h²/2 - 6*h + 10

3 0

3 years ago

What is the first step in simplifying the expression 11x-2-3(1-7x)^2/(x+1) ? square the binomial multiply the binomial by 3 divi

Delicious77 [7]

Answer:

Square the binomial :)

Step-by-step explanation:

6 0

3 years ago

A right square prism has a volume of 75 cubic inches. The prism is enlarged so its height is increased by a factor of 5, but the

kvasek [131]

Answer:

The new volume is 375 cubic inches.

Step-by-step explanation:

Volume of a right square prism:

The volume of a right square prism is given by:

$V = a^2h$

In which a is the length of the edge and h is the height.

A right square prism has a volume of 75 cubic inches.

This means that:

$a^2h = 75$

The prism is enlarged so its height is increased by a factor of 5

Edge is the same, height is 5 times. So

$a^2(5h) = 5(a^2h) = 5*75 = 375$

The new volume is 375 cubic inches.

8 0

2 years ago