4 years ago

How to do this problem x+2y=3 -x+y=6

Mathematics

1 answer:

DIA [1.3K]4 years ago

6 0

One of the ways is solve by elimination
x+2y=3
-x+1y=6
3y=9
3 3
y=3
x+6=3
-6 -6
x=-3
y=3

You might be interested in

A ball has a volume of 4 cubic inches (in3). Use the fact that 1 inch is equal to 2.54 cm to convert this volume to cubic centim

Marina86 [1]

Answer:

V = 65.548 cm³

Step-by-step explanation:

We have,

Volume of a ball is 4 cubic inches or $4\ \text{inch}^3$ .

We know that, 1 inch = 2.54 cm

It is required to convert this volume to cubic centimetre or $\text{cm}^3$ .

$4\ \text{inch}^3=4\ \text{inch}^3\times (\dfrac{2.54\ \text{cm}}{1\ \text{inch}})^3\\\\V=65.548\ \text{cm}^3$

So, the volume of the ball is 65.548 cm³.

7 0

4 years ago

The Japanese Yen corresponds to the American Dollar. If the exchange rate is 150 Yen for 1 Dollar, then a Japanese car sold in A

Papessa [141]

Answer:

125,000

Step-by-step explanation:

Take the Japanese yen and divide by 12

1,500,000 divided by 12 = 125,000

3 0

4 years ago

The vertices of a swimming pool are E(5, 5), F(5, 20), G(35, 20), and H(35, 5). The endpoints of a line that divides the pool in

sleet_krkn [62]

Answer:

Step-by-step explanation:

Download pdf

3 0

3 years ago

If the measure of the base of a triangle is 3b+2 and the height is 4b,represent the area of the triangle

Naily [24]

Answer:

6b^2 +4b

Step-by-step explanation:

The area of a triangle is

A = 1/2 bh

A = 1/2 * (3b+2) * (4b)

=1/2 (12 b^2 +8b)

= 6b^2 +4b

3 0

3 years ago

:))))))))))))))))))))))))))))ty

goldenfox [79]

Answer:

I/rt =P

Step-by-step explanation:

to get ride of the r and t u need to divide

divide by rt

which would =to I/rt=P

8 0

3 years ago