3 years ago

PLEASE HELP>.< y and x have a proportional relationship, and y = 28 when x = 21. What is the value of x when y = 42?

Mathematics

2 answers:

Alborosie3 years ago

6 0

Answer:

Step-by-step explanation:

Mkey [24]3 years ago

3 0

The answer is A Hope I helped : )

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–4.5t49.5t = 40 Please help

dlinn [17]

Answer:

t= -0.18

Step-by-step explanation:

Isolate t to get the unknown number:

(-4.5t)(49.5t) = 40

Multiply (-4.5t)(49.5t):

(-4.5t)(49.5t) = -222.75t

Now, write full equation:

-222.75t = 40

Isolate t by dividing -222.75 on both sides:

$\frac{-222.75}{-222.75}t=\frac{40}{-222.75}$

Cancel out left hand side:

$t=\frac{40}{-222.75}$

Simplify your answer:

$t=-0.17957351$

Approximate to 2 decimals:

$t=-0.18$

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Step-by-step explanation:

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