3 years ago

4x+4y=-20 and -3x-12y=-60

Mathematics

1 answer:

klasskru [66]3 years ago

5 0

Answer:

(0,-5)

Step-by-step explanation:

3(4x+4y=20)

-3x-12y=-60

12x+12y=60

-3x-12y=-60

9x=0

x=0

4(0)+4y=-20

4y=-20

y=-5

You might be interested in

Help. Please. Thanks.

Musya8 [376]

950 * .05 = $47.5
550 * .04 = $22

$47.5 + $22 = $69.50 interest earned

answer: amount in 4% account = $550

6 0

2 years ago

BRAINLIEST ANSWER FOR FIRST Please help with the problem below

Sidana [21]

Answer:

$m\:$ ]

Step-by-step explanation:

The given inequality is ;

$\frac{2m+3}{2}-\frac{17}{4}\:$

Multiply through by 8 to clear the fraction;

$4(2m+3)-2(17)\:$

Expand;

$8m+12-34\:$

Group similar terms;

$8m-m\:$

$7m\:$

$m\:$

7 0

3 years ago

Read 2 more answers

a vat of milk has spilled on a tile floor. the milk flow can be expressed with the function r(t) = 4t, where t represents time i

salantis [7]

4t=r
a=pir^2
sub 4t for r
a=pi(4t)^2
a=pi16t^2
a(t)=16pi(t^2)

A. a(t)=16pi(t^2)

B. sub 4 for t
a(4)=16pi4^2
a(4)=16pi16
a(4)=16*16*3.14
a(4)=803.84 square units

A. a(t)=16pi(t^2)
B. 803.84 square units

4 0

3 years ago

Read 2 more answers

How do you solve: 2(b - 5) + 7b-4

Alinara [238K]

2(b-5)+7b-4
Solve 2(b-5) to get 2b-10
Combine your like terms 2b-10+7b-4
Solve 2b+7b to get 9b
Solve -10+(-4) to get -14
So your answer is
9b-14