3 years ago

What is the steps and answer to do this question -x-7y=9 -x+9y=-23

Mathematics

1 answer:

Hitman42 [59]3 years ago

7 0

The answer is 23.

Good luck :)

You might be interested in

What is the distance between the points ( 19, 4) and (11, 12)?

Olenka [21]

D = $\sqrt{(x_{2}- x_{1})^{2}+ (y_{2} -y_{1})^{2}}$
D = √(11-19)²+(12-4)²
D = √(-8)²+(8)²
D = √64+64
D = √128
D ≈ 11.3137

8 0

3 years ago

160 is what % of 40<br> plz explain

wolverine [178]

Answer:

150%

Step-by-step explanation:

this is because you can make a part to whole ratio where you have x/100 (which would symbolize the percent) and 160/40 (which would symbolize the part) then, multiply 160 by 100 to get 16000 and then divide by 40 to fulfill the x. Hope this helps!

3 0

3 years ago

A room contains 5 cats and 2 dogs if the ratio is 5 to 2 the rate can be expressed as 5 cats 2 dogs

kap26 [50]

What's the question being asked here?

5 0

3 years ago

The diameter of a circle is 6 inches. What is the circle's circumference?

katrin2010 [14]

Answer:

brainiest? 37.68

Step-by-step explanation:

6 x 2 = 12

12 x 3.14 = 37.68

4 0

3 years ago

The diameter of a circle is 34 millimeters. What is the circle's area?<br> Use 3.14 for .

icang [17]

Answer:

907.46 mm2

Step-by-step explanation:

Area of circle = (¶d^2)/4

d = 34 mm

Therefore

Area A = (3.14 x 34^2)/4

= 907.46 mm2

6 0

3 years ago