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2 years ago

- 1 solve the equation - m - 7 = 5 3

2 answers:

8 0

m+7/5=3

We simplify the equation to the form, which is simple to understand
m+7/5=3

We move all terms containing m to the left and all other terms to the right.
+1m=+3-1.4

We simplify left and right side of the equation.
+1m=+1.6

We divide both sides of the equation by 1 to get m.
m=1.6

Eduardwww [97]2 years ago

3 0

The answer is 60 because were subtracting in the equation but to find m we need to the opposite which is to add 53 plus 7 which is 60. To check your answer do 60-7 equals 53

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3 years ago

Whats this answer ?

Elanso [62]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Find the exponential form of 8/27

love history [14]

<h3>Answer: (2/3)^3</h3>

Explanation:

Note how 8 = 2^3 and 27 = 3^3

This means, 8/27 = (2^3)/(3^3) = (2/3)^3

For the last step, I used the rule (a^c)/(b^c) = (a/b)^c

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2 years ago

Scientist can determine the age of ancient objects by a method called radiocarbon dating. The bombardment of the upper atmospher

Artemon [7]

Answer: 2500 years

Step-by-step explanation:

I'm not quite sure if I'm doing this right myself but I'll give it a shot.

We use this formula to find half-life but we can just plug in the numbers we know to find t.

$A(t)=A_{0}(1/2)^t^/^h$

We know half-life is 5730 years and that the parchment has retained 74% of its Carbon-14. For $A_{0$ let's just assume that there are 100 original atoms of Carbon-14 and for A(t) let's assume there are 74 Carbon-14 atoms AFTER the amount of time has passed. That way, 74% of the C-14 still remains as 74/100 is 74%. Not quite sure how to explain it but I hope you get it. h is the last variable we need to know and it's just the half-life, which has been given to us already, 5730 years, so now we have this.

$74=100(1/2)^t^/^5^7^3^0$

Now, solve. First, divide by 100.

$0.74=(0.5)^t^/^5^7^3^0$

Take the log of everything

$log(0.74)=\frac{t}{5730} log(0.5)$

Divide the entire equation by log (0.5) and multiply the entire equation by 5730 to isolate the t and get

$5730\frac{log(0.74)}{log(0.5)} =t$

Use your calculator to solve that giant mess for t and you'll get that t is roughly 2489.128182 years. Round that to the nearest hundred years, and you'll find the hopefully correct answer is 2500 years.

Really hope that all the equations that I wrote came out good and that that's right, this is definitely the longest answer I've ever written.

5 0

3 years ago

What's the answer to -2(2x + 2)= 8

Yanka [14]

If you’re trying to find x, x = 3.

4 0

2 years ago