3 years ago

-3x - 4y = 2 3x + 3y = -3

Mathematics

1 answer:

densk [106]3 years ago

5 0

Answer:

x = -2

y = 1

Step-by-step explanation:

-3x - 4y = 2

x = -2

y = 1

3x + 3y = -3

x = -2

y = 1

You might be interested in

A manufacturer is producing two types of shoes, types A and B. Type A cost $4 to produce and takes one hour. Type B costs $5 dol

beks73 [17]

Type A. You would be able to make 7 shoes and it would equal $28 of profit.
Since B takes 12.5 hours to make it wouldn't make sense

7 0

3 years ago

Christopher bought a new watch at the store when they were having a 20% off sale. If the regular price of the watch was $48 how

Troyanec [42]

48(100-20)/100

48(80)/100

3840/100

$38.40

4 0

3 years ago

Read 2 more answers

If the mean of A and B is 20, the mean of B and C is 24 and the mean of A,B and C is 18.What is the mean of A and C?

Zielflug [23.3K]

Answer:

the mean of A and C is 10

Step-by-step explanation:

Given;

mean of A and B = 20

mean of B and C = 24

mean of A, B and C = 18

$\frac{A + B}{2} = 20\\\\A+ B = 40 ---- (1)\\\\\frac{B + C}{2} = 24\\\\B+ C = 48----(2)\\\\\frac{A+ B+ C}{3} = 18\\\\A+ B+ C= 54---(3)\\\\From (1); \ A = 40 - B\\\\From(2); \ C = 48 - B\\\\\Substitute \ the \ values \ of \ A \ and \ C \ into \ (3)\\\\(40-B) + B + (48-B) = 54\\\\simplify;\\\\(40 + 48) + (B-B-B)= 54\\\\88 -B = 54\\\\-B = 54-88\\\\-B = -34\\\\B = 34$

Recall; A = 40 - B

A = 40 - 34

A = 6

Also, C = 48 - B

C = 48 - 34

C = 14

Therefore, the mean of A and C is calculated as;

$= \frac{A + C}{2} \\\\= \frac{6 + 14}{2} \\\\= 10$

5 0

3 years ago

Kurt has driven 276 miles of his road trip but has 70% of the trip left to go. How many more miles does Kurt have to drive to ge

elena-s [515]

Answer:

276 is equal to 30%.

Let x miles to drive to get his destination.

Thus, remained 70%.

276/x = 30/70

X = 644 miles to go.

Step-by-step explanation:

5 0

4 years ago

Dan the trainer has two solo workout plans that he offers his clients: Plan A and Plan B. Each client does either one or the oth

ella [17]

Yes you can say to clients that you want to talk to the boss to work on project

3 0

2 years ago