2 years ago

Help please ?!?!?!!???????!???!???!!????!!??!??!?!?!!??!?!!????

Mathematics

1 answer:

Levart [38]2 years ago

4 0

Answer:

d) as the number of t-shirts decrease, the number of days increase

Step-by-step explanation:

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2 years ago

Pls Help, 20 points!

skelet666 [1.2K]

Answer:

90/13, 45/13

Step-by-step explanation:

$- 2 = x \\ 7x + 9y = - 45 \\ \\ 7 \times ( - 2)y + 9y = - 45 \\ y = 9 \\ \\ 7x + 9 \times 9 = - 45 \\ x = - 18 \\ (x.y) = (- 18.9) \\ \\$

Simplify:

$- 2 \times 9 = - 18 \\ 7 \times ( - 18) + 9 \times 9 = - 45 \\ - 18 = - 18 \\ - 45 = - 45$

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2 years ago

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A direct variation function contains the points (2, 14) and (4, 28). Which equation represents the function?

lara [203]

Answer:

$y=7x$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

we have the points (2,14) and (4,28)

Find out the constant of proportionality k

$k=y/x$

For (2,14) ----> $k=14/2=7$

For (4,28) ----> $k=28/4=7$

the value of $k=7$

therefore

The equation is

$y=7x$

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2 years ago

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vlada-n [284]

Answer:

Step-by-step explanation:

cross multiply - 2(2x-4) = 3(x=1)

4x - 8 = 3x + 3

4x - 3x = 3 + 8

x = 11

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2 years ago

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HELP ASAP -5 - k = -12 K=?

alexandr1967 [171]

The answer is K= 7 because
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2 years ago

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