4 years ago

3) x-y = 3 | 7x-y=-3

Mathematics

1 answer:

lara [203]4 years ago

3 0

Answer:

Y=2.37

Step-by-step explanation;

Make the top equation solve for x, x=3-y

subsitute (x=3-y) into 7x-y=-3

Get 7(3-y)-y=-3

use the distributive property and get 21-7y-y=-3

Combine like terms 21-8y=-3

Subtract 21 on both sides, -8y=-19

Divide by -8 on both sides

y=2.37

You might be interested in

Identify the transformations y = |x| ‐ 6

siniylev [52]

Thé transformation is that the function moved 6 units down

4 0

3 years ago

Can someone explain how you do fractions like adding them? And what rules they have to find the answer?

frozen [14]

Answer:

Hope this image helps you. (sorry if it's tiny writing.)

Step-by-step explanation:

7 0

2 years ago

3. The cost(P) in Ghana Ghana Cedis, of producing n items is given by the formula, P=3/4n + 1800. a. Find the cost of producing

ArbitrLikvidat [17]

Answer:

3300 Ghana cedis

Step-by-step explanation:

There are 2000 items, so n = 2000

P = 3/4 * 2000 + 1800 = 1500 + 1800 = 3300 Ghana cedis

6 0

3 years ago

Which graph shows y=3⌈x⌉+1?

vovangra [49]

Answer:

Its the bottom-right one

Step-by-step explanation:

Have a good day

8 0

2 years ago

For a Brainlist !!!!!!!

UNO [17]

y=-7x+2

m=-7, so that's a negative slope.

b=2, so the y-intercept is (0,2). That's a postiive y-intercept.

Solve 0=-7x+2 to find the x-intercept.

7x=2

x=2/7

The x-intercept is (2/7,0), so that's a positive x-intercept.

6 0

2 years ago