3 years ago

What is 10x-10y=0 -20x-5y=-25

Mathematics

2 answers:

laiz [17]3 years ago

7 0

Solve for the first variable in one of the equation, then substitute the results into the other equation (1,1)

Arada [10]3 years ago

6 0

-10x-15-(-25)

-5(2x+3-5)

-5(2x-2)

-5*2 (x-1)

= -10(x-1)

You might be interested in

Cameron and Cadena go out to eat for lunch. Part A If their food and beverages cost $22.50 and there is a 9% meals tax, how much

Elan Coil [88]

Answer:

24.53

Step-by-step explanation:

9% of 22.50 = 2.03

22.50 + 2.03 = 24.53

4 0

2 years ago

Read 2 more answers

9.56 minus 8.88 equals

Firdavs [7]

.68
.................................................

8 0

2 years ago

Read 2 more answers

–2.5p – 20 = 9p + 37.5

Elenna [48]

Answer:

p = - 5

Step-by-step explanation:

–2.5p – 20 = 9p + 37.5

combine like terms:

- 2.5p - 9p = 37.5 + 20

simplify:

- 11.5p = 57.5

p = 57.5 / -11.5

p = - 5

6 0

2 years ago

Read 2 more answers

It takes 60 cubic feet of sand to fill a sandbox. The length and

damaskus [11]

Answer: 2 feet tall

Step-by-step explanation: 5*6=30/60=2

7 0

3 years ago

-8/3+5/2 solve this question

levacccp [35]

Answer:

$- \frac{1}{6}$

Step-by-step explanation:

$- \frac{8}{3} + \frac{5}{2} \\ - \frac{8 \times 2}{3 \times 2} + \frac{5 \times 3}{2 \times 3 } \\ - \frac{16}{6} + \frac{15}{6} \\ = - \frac{1}{6}$

8 0

3 years ago

Read 2 more answers