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3 years ago

Determine the ratio of

1 answer:

5 0

To solve this you would divide until you can’t. I recommend staying in whole numbers:) I always divide by twos because I think it’s more efficient! 4 divided by 2 is 2 and 30 divided by 2 is 15 sooo (2 hours to 15) hope this helped!

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Represent the following sentence as an algebraic expression, where "a number" is the letter x.A number is subtracted from 2 .

Mariana [72]

In general, the statement 'a is subtracted from b' is written as

$b-a$

Therefore, 'A number is subtracted from 2' is written as,

$2-x$

The answer is 2-x

8 0

2 years ago

How do i solve this pls

miskamm [114]

First we would solve both x’s
3x^2 - 5x
But 3 has the thingy thing (forgot the name haha)
Which means you have to multiply it by itself that many times which would be
3x3=9
So now it would be
9x- 5x = 4x
Which leaves 7 and 4x

Now you may subtract those two

7-4x= 3x

7 0

3 years ago

4400 dollars is placed in an account with an annual interest rate of 7.5%. To the nearest tenth of a year, how long will it take

Katarina [22]

Answer:

Step-by-step explanation:

The equation for the amount of money in an account after a certain amount is deposited and compounded after t years once per year is

$A(t)=P(1+r)^t$

Our A(t) = 33800, P = 4400, r = .075 and we are looking for t. Filling in:

$33800=4400(1+.075)^t$ and

$33800=4400(1.075)^t$

Begin by dividing both sides by 4400 to get

$7.681818182=1.075^t$

The only way to move that t our from its current position as an exponent is to take the natural log of both sides and follow the rules for natural logs:

$ln(7.6181818182=ln(1.075)^t$

The power rule of natural logs says we can move that exponent down in front, giving us:

$ln(7.681818182)=t*ln(1.075)$

Divide both sides by ln(1.075) to get

$\frac{ln(7.61818182)}{ln(1.075)} =t$

Do this division on your calculator to get

t = 28.2 years

6 0

3 years ago

Read 2 more answers

Can you help me with 13

Alenkinab [10]

Answer: it would be c

Step-by-step explanation:

because she wants to make 1 and a half batches so you cut how much oatmeal she needs for one batch and you have your answer she needs 1 and a quarter cup extra

4 0

3 years ago

Read 2 more answers

−3x+2y=12<br> How would you change this to y=mx+b format? <br> Answer ASAP please

Maurinko [17]

This doesn't answer it completely but you have to complete the square. I don't know the answer but there are plenty of videos on how to complete the square online. Hope I could help and sorry if I didn't <span />

8 0

4 years ago