3 years ago

Please help

Mathematics

1 answer:

Firlakuza [10]3 years ago

4 0

Answer:

Step-by-step explanation:

y = -2/3 x multiply both sides the first equation by 6

6y = -4x Add 4x to both sides.

6y + 4x = 0

-9y +4x = - 40 Subtract the bottom equation

15y = - 40 Divide by 15

y = -40/15

y = - 2.7

======================

6y = -4x

6*(-2.67) = -4x

-16 = - 4x

x = - 16/-4

x = 4

You might be interested in

A man earns $3580 per month and spend 65% of it. How much does he save every month?

Sloan [31]

Answer:

23000 dollars

Step-by-step explanation: because 3580 is about i dont even know scrub

4 0

2 years ago

A group of 2 adults and 4 children spent $38 on tickets to a museum. A group of 3 adults and 3 children spent $40.50 on tickets

Paraphin [41]

Answer:

Divide the 1st equation by 2

a + 2c = 19

Divide the 2nd equation by 3

a + c = 13.5

Subtract the 1st equation and the 2nd equation

c = 5.5

Substituting back into the 2nd equation will give:

a + 5.5 = 13.5

a = 8

Step-by-step explanation:

8 0

3 years ago

Help plzz 2decimal places 165 x 0.38²

allsm [11]

Answer:

23.83

Step-by-step explanation:

3 0

2 years ago

45% of the class is girls. There are 90 girls in the class. How many students are in the class?

Stels [109]

Answer:

189

Step-by-step explanation:

45% x2= 90%

10% of 90= 9

90+90=180

plus that 10%

180 + 9 = 189

sorry if I'm wrong I'm trying

8 0

3 years ago

Luis is saving up to buy a new phone. He already has $25 and can save an additional $6 per week using money from his after schoo

sdas [7]

Answer:

$85

Step-by-step explanation:

he would have $85 bc if u save 6 per week for 10 weeks that 60 yk so then 60 pu 25 is 85 not that hard tbh

3 0

2 years ago

Read 2 more answers