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seropon [69]
3 years ago
12

Omg someone PLEASE help

Mathematics
1 answer:
zheka24 [161]3 years ago
3 0
1. we can add them to eliminate y's

3x-4y=-16
<u>-x+4y=24 +</u>
2x+0y=8

2x=8
divide by 2
x=4

sub back
-x+4y=24
-4+4y=24
add 4 both sides
4y=28
divide by 4
y=7

(x,y)
(4,7)




3.
add them to eliminate y's

-5x+3y=12
<u>-2x-3y=-33 +</u>
-7x+0y=-21

-7x=-21
divide both sides by -7
x=3

sub back
-2x-3y=-33
-6-3y=-33
add 6 to both sides
-3y=-27
divide both sides by -3
y=9

(x,y)
(3,9)




1. (4,7)
3. (3,9)
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6) Solve for x. 2/3 (x + 7) = 10 <br><br> A)22 <br><br> B)8 <br><br> C)- 1 /3 <br><br> D)41/ 3
Amiraneli [1.4K]

For this case we must find the value of the variable "x" of the following equation:

\frac {2} {3} (x + 7) = 10

We multiply by 3 on both sides of the equation:

2 (x + 7) = 30

We divide between 2 on both sides of the equation:

(x + 7) = 15\\x + 7 = 15

We subtract 7 on both sides of the equation:

x = 8

Answer:

Option B

7 0
3 years ago
Jackie wants to learn more about local college. which of the following is a statistical question jackie could ask?
Maru [420]
The answer to this question is C
6 0
3 years ago
Read 2 more answers
Six is fifteen less than three time a number
Lemur [1.5K]

Answer:

3x-15=6

Step-by-step explanation:

3 0
3 years ago
I need help with this one pls!
Alex73 [517]

Hi there!

\large\boxed{b = \frac{a}{ac - 1}}

We can begin by making each fraction have a common denominator:

If we make each have a common denominator of ab, we get:

\frac{b}{ab} + \frac{a}{ab} = c

Simplify:

\frac{a + b}{ab}  = c

Multiply both sides by ab:

a + b = cab

Move b to the opposite side:

a = cab - b

Factor out b:

a = b(ac - 1)

Divide by (ac - 1):

\frac{a}{ac - 1} = b

4 0
3 years ago
Can someone please fill in blank ASAP
Annette [7]

Answer:

The quotient is 48.

Step-by-step explanation:

Estimate the quotient using compatible numbers:

45 (or I guess any number close the answer above, not sure tbh)

Multiply the estimate by 21:

945

45*21

Is the estimate to high or too low?

too low

Adjust and continue until the product is 1008.

1008/21=48

Have a good day/evening! I hope my answer is correct!

8 0
1 year ago
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