3 years ago

What is the solution of the system of equations? 3x + 6y = –2 15x + 30y = –10

2 answers:

7 0

3x + 6y = -2......multiply by -5
15x + 30y = -10
--------------------
-15x - 30y = 10 (result of multiplying by -5)
15x + 30y = -10
--------------------add
0 = 0

there are infinitely many solutions

MrRa [10]3 years ago

5 0

3x + 6y = -2
x = -2y-2/3
15x +30y = -10
x = -2y- 2/3

The answer would be C

You might be interested in

A pizza restaurant sells containers of juice that it marks up 75 percent above its wholesale cost. If the restaurant marks up ea

Fed [463]

0.90 = 175% of the original price
X * 1.75 = 0.90

(0.90 / 175) * 100 = $0.51

Hope this helps! :)

7 0

2 years ago

Read 2 more answers

WILL AWARD BRAINLIEST

julia-pushkina [17]

Answer: a= c+11

Step-by-step explanation:

a has 9 more than b which has 2less than c

7 0

2 years ago

A and B are independent events. P(A) = 0.50 and P(B) = 0.30. What is<br> PA and B)?

katen-ka-za [31]

Answer:

0.15

Step-by-step explanation:

5 0

3 years ago

Simply<br> (2k-9)^2+(k+2)^2=(2k+1)^2+(k-8)^2

vova2212 [387]

The square of a binomial expands as follows:

$(a+b)^2=a^2+2ab+b^2$

Expanding all the binomials, we have

$4k^2-36k+81+k^2+4k+4=4k^2+4k+1+k^2-16k+64$

Sum like terms:

$5k^2-32k+85=5k^2-12k+65$

Simplify terms appearing on both sides:

$-32k+85=-12k+65$

Move all terms involving k to the left and all numbers to the right:

$-20k=-20$

Divide both sides by -20:

$k=1$

6 0

3 years ago

There are 685 Students 80 Percent of them are going on a feild trip how many students are going on the feild trip

marin [14]

685 students X 0.80 = 548 students going on the field trip.

6 0

3 years ago

Read 2 more answers