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3 years ago

15

Someone help me solve this it's easy i just don't understand simple math

2 answers:

Lady_Fox [76]3 years ago

8 0

Answer:

The equation — E = mc2 — means "energy equals mass times the speed of light squared." It shows that energy (E) and mass (m) are interchangeable; they are different forms of the same thing. If mass is somehow totally converted into energy, it also shows how much energy would reside inside that mass: quite a lot.

Step-by-step explanation:

Anuta_ua [19.1K]3 years ago

3 0

hope this helps..................

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Please help!!! Ella and Margaret were at a carnival. They each got a ticket for the Ferris wheel. Ella got a snow cone, and Marg

seraphim [82]

Answer:

(B) $5.25

Step-by-step explanation:

We can create an equation to represent this problem.

Let's assume $f$ is the cost of a ferris wheel ticket, $s$ is the cost of a snow cone, and $c$ is the cost of a cotton candy.

We bought two ferris wheel tickets, one snow cone, and one cotton candy. After a discount of 6 dollars, the price was 12.75.

This makes the equation $2f + s + c - 6 = 12.75$

Since we know the value of each ferris wheel ticket and the snow cone, we can simplify our equation by substituting in these values.

$2(5) + 3.50 + c - 6 = 12.75\\\\10 + 3.50 + c - 6 = 12.75\\\\7.5 + c = 12.75$

We can now subtract 7.5 from both sides to get the value of $c$ , the cotton candy price.

$7.5 + c - 7.5 = 12.75 - 7.5\\\\c = 5.25$

So the cotton candy cost $5.25.

Hope this helped!

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Step-by-step explanation:

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