All categories

3 years ago

Can someone tell me the answer plz and explanation and steps

Mathematics

1 answer:

const2013 [10]3 years ago

4 0

Answer:

positive 12/5

Step-by-step explanation:

First distribute: -12m - 20 = -2m + 4

Add like terms: 10m - 20 = 4

Isolate variable: 10m = 24

Divide: 2.4 or 12/5

You might be interested in

How to find compound rate from given values, 10 years after, and initial

dybincka [34]

The formula that calculates the compound rate from the given values is $r = n(-1 + \sqrt[10n]{\frac{P + I}{P}})$

<h3>How to determine the compound interest rate?</h3>

The compound interest formula is:

$I = P(1 + \frac rn)^{nt} - P$

Where:

P represents the principal amount
r represents the compound interest rate
n represents the number of times the interest is compounded
t represents the time in years
I represents the interest

We start by adding P to both sides

$P + I = P(1 + \frac rn)^{nt}$

Divide through by P

$\frac{P + I}{P} = (1 + \frac rn)^{nt}$

Take the nt-th root of both sides

$\sqrt[nt]{\frac{P + I}{P}} = 1 + \frac rn$

Subtract 1 from both sides

$-1 + \sqrt[nt]{\frac{P + I}{P}} = \frac rn$

Multiply through by n

$r = n(-1 + \sqrt[nt]{\frac{P + I}{P}})$

In this case, t = 10

So, we have:

$r = n(-1 + \sqrt[10n]{\frac{P + I}{P}})$

Hence, the formula that calculates the compound rate is $r = n(-1 + \sqrt[10n]{\frac{P + I}{P}})$

Read more about compound interest at:

brainly.com/question/13155407

#SPJ1

3 0

2 years ago

Calculate the mean of the electric bills for Family A. Round your answer to the nearest cent. 88.82 84.80 62.35 65.17 60.20 74.8

jolli1 [7]

72.50 is rounded and the answer to this question

7 0

3 years ago

Which equation represents the slope-intercept form of the line below? y- intercept (0,-5) slope- 1/4

ahrayia [7]

slope intercept form

y =mx+b

y =-1/4 x -5

3 0

3 years ago

Read 2 more answers

Ericka flipped a coin 50 times and recorded her results. She flipped heads 27 times and tails 23 times. According to the experim

Free_Kalibri [48]

If she flipped the coin 50 times and it was tail 27 you would time 27 by 4 and it would equal 108 because 50 times 4 is 200

7 0

3 years ago

Bob has 200 coins in her piggy bank. Of those 40%are pennies. Out of the coins that are not pennies 25% are quarters. How many o

nadezda [96]

Answer: 200 x .40 = 80 (there are 80 pennies)

200 - 80 = 120

120 x .25 = 30 (there are 30 quarters)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers