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3 years ago

8

What's the Unit Rate? please. :')

1 answer:

goblinko [34]3 years ago

6 0

Answer:

The unit rate is 8.

Step-by-step explanation:

(5, 40) = 8

(10, 80) = 8

(15, 120) = 8

you can simply divide and find the unit rate.

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How to find perimeter of A(−6,−4),B(−4,−4),C(−4,−2),D(−6,−2)

balu736 [363]

Answer:

Step-by-step explanation:

AB=-4-(-6)=2

DC=-4-(-6)=2

BC=-2-(-4)=2

AD=-2-(-4)=2

Perimeter=4*2=8 units

6 0

3 years ago

You have 1240 acres of land, and each acre is worth $52. How much is your land worth in total?

murzikaleks [220]

If one acre is $52, you would multiply 1240 by 52. Your land in total is worth $64,480.

5 0

3 years ago

System of Equations <br> Need help<br> Trig

Yanka [14]

Looks like the system is

$\begin{cases}-2x+y+6z=1\\3x+2y+5z=16\\7x+3y-4z=11\end{cases}$

We can eliminate $y$ by taking

$(3x+2y+5z)-2(-2x+y+6z)=16-2(1)$

$\implies3x+2y+5z+4x-2y-12z=16-2$

$\implies7x-7z=14$

$\implies x-z=2$

so that $z=x-2$ , and

$(7x+3y-4z)-3(-2x+y+6z)=11-3(1)$

$\implies7x+3y-4z+6x-3y-18z=11-3$

$\implies13x-22z=8$

Substitute $z=x-2$ into this last equation and solve for $x$ :

$13x-22(x-2)=8$

$\implies13x-22x+44=8$

$\implies-9x=-36$

$\implies x=4$

Then

$z=x-2$

$\implies z=4-2$

$\implies z=2$

Plug these values into any one of the original equation to solve for $y$ :

$-2x+y+6z=1$

$\implies-2(4)+y+6(2)=1$

$\implies-8+y+12=1$

$\implies y=-3$

Hence the solution is x = 4, y = -3, and z = 2.

6 0

4 years ago

Of the 240 available seats for a concert, 63 seats were reserved. What fraction of seats was reserved? Write your answer in simp

Olin [163]

63/240 seats or 21/80
The greatest common denominator is 3, so you would divide both by 3.

6 0

3 years ago

What is the median of 0.8, 1.0, 2.7, 2.8, 3.1, 13.3

tresset_1 [31]

Answer:

$2.75$

Step-by-step explanation:

<u>Step 1: Determine the median</u>

$0.8, 1.0, 2.7, 2.8, 3.1, 13.3$

The median of a set is the middle of the set. In this instance, we have 6 numbers so we don't have a number directly in the set representing the median. Instead, we need to find the average or middle between the 3rd and 4th number. So we take 2.7 and 2.8, add them together to get 5.5 and then we divide by 2 to get 2.75 which is our median.

Answer: $2.75$

5 0

2 years ago

Read 2 more answers