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3 years ago

Please help ASAP Due in 1 hour!!! Marking Brainliest!!!

Mathematics

2 answers:

gayaneshka [121]3 years ago

5 0

Answer: I’m sure it’s D

Step-by-step explanation:

inessss [21]3 years ago

3 0

Answer:

the answer is d

Step-by-step explanation:

a function is where you have 1 output for every input so you can't have an x value with 2 different outputs

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At a little known vacation spot taxi fares are a bargain. A 36 mile taxi ride takes 42 minutes and cost $25.20. You want to find

katen-ka-za [31]

it would cost $32.90

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4 years ago

Read 2 more answers

A school is having a valentine's day sale. The first day,they sold 20 roses and 15 boxes of chocolate for $80. The second day th

True [87]

Answer:

roses were $1 each and chocolates were $4 per box

Step-by-step explanation:

let Cost of 1 rose = "R" and Cost of 1 box of chocolate = "C"

First day: cost of 20 roses + cost of 15 chocolate = $80,

or...

20R + 15C = 80 (divide both sides by 5)

4R + 3C = 16 ------------(eq 1)

Second day: cost of 40 roses + cost of 20 chocolate = $120,

or...

40R + 20C = 120 (divide both sides by 10)

4R + 2C = 12 ------------(eq 2)

by elimination, (eq 1) - (eq 2)

(4R + 3C) - (4R + 2C) = 16 - 12

4R + 3C - 4R - 2C = 4

C = 4 (substitute this back into eq 1)

4R + 3(4) = 16

4R + 12 = 16

4R = 16 - 12

4R = 4

R = 1

Hence roses were $1 each and chocolates were $4 per box

5 0

3 years ago

Which phrase is represented by 3(8-n)t2

Alex787 [66]

The answer is d.
Two more (+2) than three times (3) the difference between eight and a number (8-n)

4 0

3 years ago

The gcf of 14 and 22

Finger [1]

The GCF is 2
Hope this helps!

8 0

3 years ago

Read 2 more answers

Can someone help with all of of it ??

Bad White [126]

Answer:

y = -2x + 1

Step-by-step explanation:

First we're going to find the gradient (the number in the green box with the question mark).

We use the formula $\frac{y2-y1}{x2-x1}$ to calculate the gradient.

Let's make (-1, 3) be our (x1, y1), and (2, -3) be our (x2, y2).

Substitute the points into our formula:

gradient = $\frac{(-3)-3}{2- (-1)}$

gradient = $\frac{-6}{3}$

gradient = -2

Next, we're going to find the y-intercept (the number in the grey box)

Now that we have the gradient, our equation looks like this:

y = -2x + c

We use the letter c to represent the y-intercept of a linear graph.

Substitute one of the points given into the x and y in the equation. Let's use (-1, 3).

3 = -2(-1) + c

3 = 2 + c

c = 1

So our equation is y = -2x + 1

8 0

3 years ago