All categories

3 years ago

Solve by linear combination 2x-y=6 x+y=6 I need all the work please

1 answer:

4 0

<span>2x-y=6
x+y=6
-------------
3x = 12
3x/3 = 12/3
x = 4

x + y = 6
4 + y = 6
4-4 +y = 6 -4
y = 2

Check
2x - y = 6
2(4) - 2 = 6
8 - 2 =6
6=6
</span>

You might be interested in

3 friends want to go for a hike. (Level 4)They pack enough water to last for 6 hours. 3 more people join the hike.How long will

svlad2 [7]

Answer:

3 hours

Step-by-step explanation:

Because first 3 friends have water that last 6 hours when you double the amount of people you get less water, I don't speak good English to explain but you have to subtract 3 from 6 because 3 is amount of people that need water that lasts 6 hours and when you have more people you get less water sooooo you subtract 3 from 6.

Hope you understand!

7 0

3 years ago

A bottle and a cap together cost $1.10. The bottle costs $1 more than the cap. How much does each cost?

Darya [45]

Answer:

The cap costs 10 cents and the botttle costs $1

Step-by-step explanation:

1.10-1=.10

3 0

3 years ago

52 is 13% of what number

pentagon [3]

I believe the answer would be 400
because if you divide 52/0.13 you get 400

3 0

4 years ago

Read 2 more answers

Find the equation of the line with y-intercept -2 and passing though the point (2,5). Show your work. What is the equation of a

mihalych1998 [28]

equation of a line with y intercept of neg.2 is y=mx-2

you could use pint slope[y-y1=m(x-x1)], but i preffer slope intercept form [y=mx+b]

5=m2-2

move 2 to the other side

7=m2

divide both sides by 2

3.5=m

so, the slope is 3.5

equation for a line that passes through point (2,5) with a y intercept of -2 is y=3.5x-2

the equation of a perpendicular line to the line y=3.5x-2 has a slope that is negative reciprical of 3.5

we keep the everything on y=3.5x-2 same except the slope.

negative reciprical slope of 3.5 is -

$- \frac{10}{35}$

simplify

$- \frac{2}{7}$

so, the equation of a line perpendicular to the first one is y=-2/7x-2

5 0

4 years ago

Consider that a 1/2 cup serving of 1% cottage cheese is equivalent to 125 grams. If 1 ounce of cottage cheese is equivalent to 2

VikaD [51]

Answer:

4.42 ounces.

Step-by-step explanation:

We have been given that a 1/2 cup serving of 1% cottage cheese is equivalent to 125 grams. 1 ounce of cottage cheese is equivalent to 28.35 grams. We are asked to find the ounces in 1/2 cup serving.

We will use proportions to solve our given problem.

$\frac{\text{Ounce}}{\text{Grams}}=\frac{1}{28.25}$