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4 years ago

3-2r+5=2-8/3 is simplified to what?

Mathematics

1 answer:

valkas [14]4 years ago

7 0

Hi there!!! :DD

3-2r+5=2-8/3 is simplified to what?

Answer: $r= \frac{13}{3}$

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Select the three ratios that are equivalent to 2 adults/5 children

IceJOKER [234]

2:5
4:10
8:20
16:40
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3 0

3 years ago

Read 2 more answers

The area of a rectangular fountain is x2 + 9x + 20 square feet. A 3-foot walkway is built around the fountain. Find the dimensio

Leto [7]

Answer:

(x+11) by (x+10)

Step-by-step explanation:

We know that Area = Length x width

Given: Area = x²+9x+20

Lets sort this out first

Area = x²+5x + 4x + 20

Area = x(x+5) + 4(x+5)

Area = (x+5) (x+4)

Therefore, it is concluded that:

Length 'l' = (x+5) feet

Width 'w' = (x+4) feet

if a 3-foot walkway is built around the fountain, we'll add 3 feet on both sides

Therefore,

Outer Length = (x+5+3+3) = (x+11) feet

Outer Width = (x+4+3+3) = (x+10) feet

Answer:

The fountain is (x+5) by (x+4).

dimensions of the outside border of the walkway are (x+11) by (x+10)

8 0

4 years ago

Find the inverse of y=1/2x+6. Show steps

soldi70 [24.7K]

Answer:

y = 2x - 12

Step-by-step explanation:

To find the inverse of a function, you switch x and y and solve for y.

x = 1/2 y + 6 switch x and y

x - 6 = 1/2 y subtract 6 from both sides

2x - 12 = y multiply both sides by 2

7 0

3 years ago

What Val are restricted from the domain of

djverab [1.8K]

Given:

The given expression is $\frac{\left(4 x^{2}-4 x+1\right)}{(2 x-1)^{2}}$

We need to determine the values for which the domain is restricted.

Restricted values:

Let us determine the values restricted from the domain.

To determine the restricted values from the domain, let us set the denominator the function not equal to zero.

Thus, we have;

$(2x-1)^2\neq 0$

Taking square root on both sides, we get;

$2x-1\neq 0$

$2x\neq 1$

$x\neq \frac{1}{2}$

Thus, the restricted value from the domain is $x\neq \frac{1}{2}$

Hence, Option A is the correct answer.

7 0

4 years ago

The following section is a statement from the rental agreement Tim signed when he rented his car this past weekend. "Upon checko

Firdavs [7]

To check how much Tim will pay to refill the gas tank using one of the on-site pumps, we can create a linear model. We know from our problem that the Renter's charge $4.50 per gallon plus a $5.00 refueling, so let $x$ be the number of gallons and $y$ the total cost.
$y=4.50x+5$
We also know that the fuel tank in the car is half empty and the car has a 12-gallon fuel tank, so half tank is 6 gallons. Lets replace the number of gallons in our linear model with 6 to fin the total cost:
 $y=4.50x+5$
$y=4.50(6)+5$
$y=27+5$
$y=32$

Now, to find how much Tim will pay if he decides to refuel the car on his own, we can also create a linear model.
Let $x$ be the number of gallons and $y$ the total cost. We know form our problem that refueling the car on his own will cost $2.59 per gallon and the late fee charge is $32.
 $y=2.59x+32$
We already know that half tank is 6 gallons, so
 $y=2.59(6)+32$
$y=15.54+32$
$y=47.54$

Comparing the result of our two linear models we can conclude that the correct answer is: b. It would be cheaper to return the car on time and pay the refueling costs.

5 0

3 years ago