All categories

3 years ago

Write an equation to describe the relationship between x and y.

Mathematics

2 answers:

sesenic [268]3 years ago

5 0

Answer:

y=4.5x

Step-by-step explanation:

I luv ur profile picture! (:

Igoryamba3 years ago

3 0

Answer:

y = 4.5x

Step-by-step explanation:

Given:

x= 2 ⇒ y=9
x=5 ⇒ y=22.5
x=8 ⇒ y=36

We can see that:

9/2 = 22.5/5 = 36/8 = 4.5

Therefore the relationship between x and y is:

y = 4.5x

You might be interested in

Solve 7x2 - 2x = −3 Please

eduard

Pretty sure it’s the second answer

8 0

2 years ago

Read 2 more answers

Joel wants to buy a new tablet computer from a store having a 20% off sale on all tablets. The tablet he wants has an original c

gtnhenbr [62]

Answer:

190 *.80 *(1.05)

Instead of adding the sales tax, he subtracted the sales tax.

159.60

Step-by-step explanation:

If Joel gets 20% off, he still has to pay (100-20) or 80%

The cost of the tablet is now 190 * .80

Then he has to pay 5% sales tax.

The tax is the prices times 5% plus the original price

190 *.80 *(1+.05)

or 190 *.80 *(1.05)

Instead of adding the sales tax, he subtracted the sales tax.

The total he needs to pay is

190 *.80 *(1.05)

159.60

Hope this helps :)

-ilovejiminssi♡

8 0

3 years ago

Read 2 more answers

Which compound inequality could be represented by the graph

Ierofanga [76]

Answer:

$x\leq 3$ or $x\geq -1$

Step-by-step explanation:

Verify the solution of each case

case 1) we have

$-4\leq x\leq 4$

Divide the compound inequality into two inequalities

$x\leq 4$ ---> solution is the interval (-∞,4]

$-4\leq x$ ---> solution is the interval [-4,∞)

The solution of the compound inequality is

[-4,∞) ∩ (-∞,4] ----> [-4,4]

case 2) we have

$-2\leq x\leq -1$

Divide the compound inequality into two inequalities

$x\leq -1$ ---> solution is the interval (-∞,-1]

$-2\leq x$ ---> solution is the interval [-2,∞)

The solution of the compound inequality is

[-2,∞) ∩ (-∞,-1] ----> [-2,-1]

case 3) we have

$x\leq -1$ ---> solution is the interval (-∞,-1]

$x\geq 0$ ---> solution is the interval [0,∞)

The solution of the compound inequality is ----> (-∞,-1] ∪ [0,∞)

case 4) we have

$x\leq 3$ ---> solution is the interval (-∞,3]

$x\geq -1$ ---> solution is the interval [-1,∞)

The solution of the compound inequality is

(-∞,3] ∪ [-1,∞) ---->(-∞,∞)

8 0

3 years ago

What is the area of the following composite figure? Round your answer to the nearest hundredth.

baherus [9]

Answer:

139.79 yd²

Step-by-step explanation:

area of rectangle = l·w

A = 12·9 = 108

area of semi-circle = 1/2πr²

A = 1/2·(3.14)·(9/2)²

A = 31.79

area of composite shape = 108 + 31.79

A = 139.79

4 0

3 years ago

Phillip departed from town A with coordinates (1, 6) towards town B with coordinates (7, 6). At the same time Bruce headed from

Lana71 [14]

Step-by-step explanation:

First we need to determine the length of the path they're walkin on. We do this with the following equation:

$\sqrt{(x1 - x2)^{2} + (y1 - y2)^{2} }$

Let's fill it in:

$\sqrt{(1 - 7)^{2} +(6 - 6)^{2} } = \sqrt{36} = 6$

They walk 7:5 respectively 7+5=12 so on 6 units they'll walk 12/6=2 so 7/2:5/2=3.5:2.5

3.5 units right from (1,6) is 1+3.5=4.5 which gives us (4.5,6)

6 0

3 years ago