In the equation y=4x, which of the following explains the unit rate?

Answers

Answer 1

Answer: Is this multiple choice? 4x would be the slope, so thats the unit rate.

Answer 2

Answer: y = kx

k would represent the unit rate, or constant of variation, therefore, 4 would be the unit rate.

Answer: 4

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What is the expression in factored form?x^2+13x+14Also an explanation
I dont understand this math at all

Answers

Answer:

$\left(x-(-13+√(113))/(2)\right)\left(x-(-13-√(113))/(2)\right).$

Step-by-step explanation:

To factor the expression $x^2+13x+14$ you need to know its roots.

First find the discriminant of this quadratic polynomial:

$D=13^2-4\cdot 1\cdot 14=169-56=113.$

Then the roots of the expression $x^2+13x+14$ are

$x_(1,2)=(-13\pm √(113))/(2).$

Now the factored form is

$\left(x-(-13+√(113))/(2)\right)\left(x-(-13-√(113))/(2)\right).$

Write a word problem that can be solved by finding the numbers that have 4 as a factor

Answers

Answer:

'There are 7 rocks in 4 boxes, How many rocks are there in total.'

Step-by-step explanation:

We are given to form a word problem having solution which has 4 as a factor.

Now, if we take the following statement,

'There are 7 rocks in 4 boxes, How many rocks are there in total.'

Its solution is given by,

As there are 4 boxes in total and each box has 7 rocks.

Thus, total number of rocks will be 4 × 7 = 28.

We can see that 4 is a factor of 28.

Hence, the word problem could be 'There are 7 rocks in 4 boxes, How many rocks are there in total.'

What number is 18% of 250

Answers

18 over 100 = x over 250, x= 45. 45 is ur answer.

18% of 250 is 45%

Change 18 into a decimal which is: 0.18.
0.18 × 250 = 45.

Which story problems could be solved using the given equation?1\4 x 3\5

Choose exactly two answers that are correct.

A.
There is 3\5 of a box of dog treats in the cupboard. Jill’s dog eats1\4 of a box of treats in a week. How many weeks of treats are left in the box for Jill’s dog?

B.
In Sophie’s doll collection,3\5 of the dolls are in their original boxes. Sophie plans to donate 1\4 of the dolls in these boxes to charity. How much of her doll collection will Sophie donate to charity?

C.
Shawn made a poster that has a width of 1\4 meter and a length of 3\5 meter. What is the area, in square meters, of Shawn’s poster?

D.
Christie hiked 1\4 mile on the trail. Jackie hiked 3\5 mile farther than Christie. How far, in miles, did Jackie hike on the trail?

Answers

Answer: Option 'C' and 'B' are correct.

Step-by-step explanation:

Since we have given that

$(1)/(4)* (3)/(5)$

In Option 'C' ,

Length of a poster is given by

$(1)/(4)$

Width of a poster is given by

$(3)/(5)$

So, Area of poster is given by

$Length* breadth\n\n=(1)/(4)* (3)/(5)$

In option 'B', part of dolls are within the original box is given by

$(3)/(5)$

Part of dolls who has charity is given by

$(1)/(4)$

Total dolls she donate is given by

$(1)/(4)* (3)/(5)$

On the other hand, In option 'A' has "Division operation" and option 'D' has "Subtraction operation".

Hence, Option 'C' and 'B' are correct.

Which story problem could be solve using the given equations.
B & C.

What is 91 divided by 0.7

Answers

well i got 130.

hope it helps : )

the answer is 170.( if you need to know how I got it then just post another question im on here a lot so ill probably see it)

You deposit $200 in a savings account. The account earns 6% simple interest per year. A. What is the interest earned after 2 years.
B. What is the balance after 2 years.

Answers

200 x 1.06^2
=224.72

Answer:

A. $24

B. $224

Step-by-step explanation:

For simple interest, the formula is I = PRT where I = interest earned, P = principal amount borrowed/deposited, R = rate as a decimal, and T = time in years.

I = (200)(0.06)(2)

I = 24

Then add that to the amount deposited ($200) and you're done.

200 + 24 = $224

Please let me know if you have questions.

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