All categories

3 years ago

Justin is evaluating the expression 12.5 + 3.8x, when x is 7.9

2 answers:

5 0

Ok so this is an output/input question u will do 12.5 + 3.8(7.9) =x so in order to get x u will do 7.9 × 3.8 which gives u 29.64 then u will add that to 12.5 which gives u x = 46.14

salantis [7]3 years ago

4 0

Answer:

Justin should have Multiplied 3.8 and 7.9 first

Step-by-step explanation:

Because all these people that have the wrong answer got me mad

You might be interested in

Use the following table to answer the question below.

Veseljchak [2.6K]

Answer:

it's 2015 I believe I hope I helped

3 0

3 years ago

13 Levi bought a new phone for $550. He received a discount of 24%

Likurg_2 [28]

After discount: $418; total (including tax): $388.74

7 0

3 years ago

What is the sum of 7 x 10-8 and 2 x 10-8 ?

Mademuasel [1]

Answer: 1. $70x-8$ <----(answer for 7 x 10 - 8)

2. $20x-8$ <---- (answer for 2 x 10-8)

Step-by-step explanation:

$7x10$

$-8$

$2x$

$10-8$

3 0

2 years ago

A 8th grade math question, was ignored 3 times already. please answer!

MissTica

Answer:

1 and 2

Step-by-step explanation:

4 0

3 years ago

Use the given cost tables for the same product from two different companies to create a linear system.

alina1380 [7]

A linear function is used to represent functions that have a constant rate

$r = 33.99n +159.25$ .
$s = 37.99n +19.25$ .
Both restaurants charge at different rates

<h3></h3><h3>Linear functions</h3>

A linear function is represented as:

$y=mx + b$

Where

m represents the rate
b represents the y-intercept

<h3>The equations </h3>

For restaurant warehouse:

Start by calculating the slope (m) using:

$m = \frac{r_2 -r_1}{n_2 -n_1}$

So, we have:

$m = \frac{499.15 - 329.20}{10-5}$

$m = \frac{169.95}{5}$

$m = 33.99$

The equation is then calculated as:

$r = m(n -n_1) + r_1$

So, we have:

$r = 33.99(n -5) + 329.20$

Expand

$r = 33.99n -169.95 + 329.20$

$r = 33.99n +159.25$

For supply side:

Start by calculating the slope (m) using:

$m = \frac{s_2 -s_1}{n_2 -n_1}$

So, we have:

$m = \frac{399.15 - 209.20}{10-5}$

$m = \frac{189.95}{5}$

$m = 37.99$

The equation is then calculated as:

$s = m(n -n_1) + s_1$

So, we have:

$s = 37.99(n -5) + 209.20$

Expand

$s = 37.99n -189.95 + 209.20$

$s = 37.99n +19.25$

Read more about linear functions at:

brainly.com/question/14323743

7 0

2 years ago