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3 years ago

–3x + 5y = –9 4x+8y=12

Mathematics

1 answer:

7nadin3 [17]3 years ago

8 0

The solution to the system of equations is (1,-6/5)

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Kind of lost, can anyone please help me find the answer and explain? Id really appreciate it.

stich3 [128]

Answer:

B. 45

Step-by-step explanation:

do 12×12 which is 144 then Davide it by 2 because it's a triangle then do 9×3 which is 27 then subtract that from 72 and you get 45.

5 0

3 years ago

Read 2 more answers

Bags of maple granola cost $2 more than apple granola

Brilliant_brown [7]

Answer:

a + m = 2+ a

Step-by-step explanation:

We don't know the amount of apple granola and the amount of the maple granola. So we just set an equation.

3 0

3 years ago

Helppppppppppppppppp lol

asambeis [7]

Answer:

There are no solutions.

Step-by-step explanation:

If there is 74 and 54 but with the same 15x: there is no solution. Even with negative.

3 0

3 years ago

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A movie theater decreased the size of its popcorn bags by 20%. If the old bags held 15 cups of popcorn, how much do the new bags

vovikov84 [41]

Answer:

Your answer will be  $12$  cups of popcorn.

Step-by-step explanation:

To find out how much the new bags hold, you need to find out the discount.

$\frac{20}{100 } = .2$

$15 * .2 = 3$

We know that the discount is $3$ .

To figure out how much the new bags hold, subtract by the old bags.

$15 - 3 = 12$

The new bags hold 12 cups of popcorn. 

7 0

3 years ago

Suppose a jar contains 15 red marbles and 19 blue marbles. If you reach in the jar and pull out 2 marbles at random at the same

Kay [80]

Answer: $\bold{\dfrac{35}{187}}$

Step-by-step explanation:

1st marble and 2nd marble

$\dfrac{15\ red}{34\ total}$ $\times$ $\dfrac{14\ red}{33\ total}$ $=\dfrac{15\times 14}{34\times 33}=\dfrac{5\times 7}{17\times 11}= \boxed{\dfrac{35}{187}}$

8 0

3 years ago