2 years ago

ANSWER ASAP WILL MARK BRAINLIEST

Mathematics

1 answer:

nirvana33 [79]2 years ago

4 0

Answer: A

Step-by-step explanation:

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You pay $2.40 for 3/4 pound of grapes your friend buys a pound of grapes at the same time and estimates that he will pay $1.80 w

LenKa [72]

I would say your friends assumption is wrong. Why?

Because, if you payed $2.40 for 3/4 pounds of grapes, your friend should pay more for an entire pound, not less.

Hope this helped! c:

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MissTica

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2 years ago

Read 2 more answers

Suppose c is inversely proportional to the square of d. If c=6 when d=3⁢, find the constant of proportionality and write the for

NemiM [27]

Answer:

The constant of proportionality is 54.

k = 54

c as a function of d:

$c(d) = \dfrac{54}{d^2}$

$c(7) = \dfrac{54}{49}$

Step-by-step explanation:

We are given the following in the question:

c is inversely proportional to the square of d.

$\Rightarrow c\propto \dfrac{1}{d^2}\\\\\Rightarrow c = \dfrac{k}{d^2}\\\\\text{where k is constant of proportionality}$

When c = 6, d = 3.

Plugging the values, we get,

$6 = \dfrac{k}{3^2}\\\\\Rightarrow k = 6\times 3^2 = 54$

Thus, the constant of proportionality is 54.

c as a function of d can be written as:

$c(d) = \dfrac{54}{d^2}$

We have to find value of c when d = 7.

Putting values, we get,

$c(7) = \dfrac{54}{(7)^2}=\dfrac{54}{49}$

is the required value of c.

4 0

3 years ago

I NEED HELP WITH BOTH I WILL MARK THE BRAINIEST

Dennis_Churaev [7]

First pic: x=27
second pic: x=15

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2 years ago

I need help I attached a picture!

Yuki888 [10]

What do we have to do

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3 years ago