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tamaranim1 [39]
3 years ago
14

Please help giving BRAINLYEST

Mathematics
2 answers:
scoundrel [369]3 years ago
6 0

Answer:

Last one:

2 x + 4 y = 6. 3 x minus 4 y = 9.

Step-by-step explanation:

2x + 4y = 6

3x - 4y = 9

4y = 3x - 9

2x + 3x - 9 = 6

5x = 15

x = 3

4y = 3(3) - 9

4y = 0

y = 0

Only one solution, which is (3,0)

likoan [24]3 years ago
5 0

Answer:

2x+4y =6

3x -4y =9  one solution

Step-by-step explanation:

4x+2y =8

-4x-2y =3

Adding these together

0 =11  False no solutions

-5x +y =6

5x -y = -6

Adding these together

0 = 0  True we get Infinite solutions

-3x+4y =2

3x-4y =0

Adding these together

0=2  False   no solutions

2x+4y =6

3x -4y =9

Add these together

5x =15

Divide by 5

5x/5 = 15/5

x =3

2(3) +4y =6

10 +4y =6

4y = 0

y = 0

(3,0)

One solution

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Which of these shows the complete factorization of 6x^2y^2-9xy-42
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Answer:

3 • (2xy - 7) • (xy + 2)

Step-by-step explanation:

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4 0
3 years ago
Frankie paid $11.75 for the movie tickets and $4.75 for popcorn and drink. How much did Frankie spend?
olasank [31]

Answer:

he spent $16.5

Step-by-step explanation:


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3 years ago
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At the soup to nuts cafeteria, larry orders two pieces of toast and a bagel, which comes out to $\$1.30$. Curly orders a bagel a
kotegsom [21]

Let us take costs of a piece of toast = $t, , one bagel cost=$b and a muffin cost=$m.

Larry

Two pieces of toast and a bagel cost  = $1.30

2t+b=1.30   -------------equation(1)

Let us solve the equation(1) for t in terms of b, because we need to find one bagel cost.

Subtracting b from both sides we get

2t+b-b=1.30-b

2t= 1.30-b

Dividing by 2 on both sides.

2t/2= (1.30-b)/2

t= (1.30-b)/2

Curly

A bagel and a muffin cost = $2.50.

b + m = 2.50 -------------equation(2)

Solving equation for m in terms of b, we get

m= 2.50-b.

Moe

A piece of toast, two bagels, and three muffins cost = $6.95

t + 2b + 3m = 6.95    ......................equation(3).

Substituting t= (1.30-b)/2 and m= 2.50-b in equation (3)

(1.30-b)/2 + 2b + 3(2.50-b) = 6.95 .

Multiplying each term by 2 to get rid 2 from denominator of (1.30-b).

2*(1.30-b)/2 + 2*2b + 2*3(2.50-b) = 2*6.95

1.30-b + 4b + 6(2.50-b) = 13.90.

1.30 - b + 4b  +15 - 6b = 13.90

Combining like terms

-3b +16.30 = 13.90

Subtracting 16.30 from both sides.

-3b +16.30-16.30 = 13.90-16.30.

-3b= -2.4

Dividing both sides by -3.

-3b/-3 = -2.4/-3

b = 0.8

Therefore, cost of one bagel = $0.80.

7 0
3 years ago
Margie's car can go 32 miles on a gallon of gas, and gas currently cost $4 per gallon. how many miles can Margie drive on $20 wo
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To do this first we will divide the amount of dollars (20) by the amount of dollars 1 gallon is for (4). Then we will multiply the amount of times 4 goes into 20 by 32 and the answer will be the amount of miles she can drive worth $20. 

20 ÷ 4 = 3
3 × 32 = 96

So, Margie can drive 96 miles in $20. 

Hope I helped ya!! xD 
6 0
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