3 years ago

How do you solve and answer -x+y=-7 x+4y=-8 ....... (x is the Variable)

Mathematics

1 answer:

AURORKA [14]3 years ago

8 0

See attachment for solving by elimination

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Which is the equation of a line that passes through the points (1,4) and (-1,1)

horsena [70]

Answer:

The equation of the line is y = 3/2x + 5/2

Step-by-step explanation:

To find the equation of this line, start by using the two points with the slope formula to find the slope.

m(slope) = (y2 - y1)/(x2 - x1)

m = (4 - 1)/(1 - -1)

m = 3/(1 + 1)

m = 3/2

Now that we have the slope, we can use that and either point in point-slope form to find the equation.

y - y1 = m(x - x1)

y - 4 = 3/2(x - 1)

y - 4 = 3/2x - 3/2

y = 3/2x + 5/2

3 0

3 years ago

Which cypress ion is equivalent to 4(x+2) ? 6x 4(x)+4(2) 4(x)+4 8x

jenyasd209 [6]

Answer:

4(x) + 4(2)

Step-by-step explanation:

4(x+2) = 4(x) + 4(2)

Distribution property

5 0

3 years ago

Tyler is planting 60 trees at the apple orchard he will plan 8 trees in each row how many full rows of trees will Tyler plant?

Ainat [17]

He would maybe have 7.5 but I insist you the answer could be 8 too

6 0

3 years ago

To make ribbon and bow for a hat, Stacey needs 5/6 yard of black ribbon and 2/3 yard of red ribbon. how much total ribbon does s

larisa86 [58]

First make the denominators of the fractions the same by multiplying.

$\frac{2}{3}$ × $\frac{2}{2}$
= $\frac{4}{6}$

Now we just need to add the fractions together

$\frac{5}{6} + \frac{4}{6}$
= $\frac{9}{6}$

9/6 would be the answer, but it can be simplified further, then converted into decimal form.

$\frac{9}{6}$ ÷ $\frac{3}{3}$
= $\frac{3}{2}$
=1.5 yards

Your final answer is 1.5 yards of ribbon are needed.

7 0

4 years ago

Read 2 more answers

Find the value of x that makes m n. m n (180 - x)^

enot [183]

Answer:

x=180-x

2x=180

x=90

Step-by-step explanation:

3 0

3 years ago