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avanturin [10]
3 years ago
12

How old am I if 689 reduced by 5 times my age is 464? Write and Solve an Equation with an answer.

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
7 0

Answer:

45

Step-by-step explanation:

689 - 464 = 225

225 /5 = 45

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Simplify the expression 3x(x – 12x) + 3x2 – 2(x – 2)2. Which statements are true about the process and simplified product? Selec
Ann [662]

To solve the problem we must know about the Like terms and expressions.

<h3>What is an Expression?</h3>

In mathematics, an expression is a set of numbers, variables, and mathematical operations formed according to rules.

Given ;

3x(x - 12x) + 3x^2 - 2(x - 2)^2

To  solve the algebraic expression,

3x(x - 12x) + 3x^2 - 2(x - 2)^2\\\\3x(x - 12x) + 3x^2 - 2(x^2 - 4x + 4)\\\\3x(x - 12x) + 3x^2 - 2x^2 + 8x - 8\\\\3x^2 - 36x^2 + 3x^2 - 2x^2 + 8x - 8\\\\-33x^2 + x^2 + 8x - 8\\\\\\-32x^2  + 8x - 8\\

To solve the problem we must know about the Like terms and expressions.

Learn more about Expression:

brainly.com/question/13947055

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7 0
1 year ago
*place holder since picture has the work*
ira [324]

Answer:

A square.

Step-by-step explanation:

I plotted the points on Desmos and then connected them.

When connected, the lines form a square.

[Picture Below]

3 0
3 years ago
BRAINLIESTTT ASAP! PLEASE HELP ME :)
Troyanec [42]

Answer:

What do you need help with, I can't help you right now because there is no problem.

Step-by-step explanation:

You can take a screenshot and post it if you would like

5 0
3 years ago
Read 2 more answers
Hurry as this need to done before 11PM tonight!?!?! Give answer as a fraction. A) − 23 34 B) − 49 18 C) 11 37 D) 3 11
d1i1m1o1n [39]
I'm sorry that it's past 11pm, but if it still helps, the answer is 204/-576 which simplifies to 51/-144
8 0
3 years ago
If 800g of a radioactive substance are present initially and 8 years later only 450g remain, how much of the substance will be p
artcher [175]

A=Pe^(rt)

P = 800g

t = 8 years

A = 450g

r = This is what we will try and find to start with

450=800e^(r*8)

After running the math through a calculator, we end with r = -0.07192

Now we just re-input this information into our equation: A=800e^(-0.07192*16)

A=800e^(1.15072)

Now we will re-write the equation using the negative exponent rule:

A = 800 1/e^1.15072

Combine right side:

A = 800/e^1.15072

Then do the math:

A = 253.12709836......

That will give us A = 253 (rounded to the whole number)

I hope this helps! :)

5 0
3 years ago
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