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3 years ago

(help pls), What numbers are a distance of 68 unit from 18 on a number line?

Mathematics

1 answer:

Finger [1]3 years ago

7 0

To be 6/8 units from 1/8, you need to either add or subtract 6/8 from 1/8.

1/8-6/8 = -5/8

1+8+6+8 = 7/8

On the number line, just count 6 markers to the left or right from 1/8, since each marker is 1/8 of a unit.

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If you add 21 to my number and then multiply the result by 3, you will get 84 more than two-thirds of my number. Find my number.

Ksivusya [100]

Based on the calculations, the unknown number is equal to $\frac{-45}{7}$

Let the unknown number be x.

<h3>How to find an unknown number:</h3>

Translate the word problem into an algebraic expression, we have;

Adding 21 to the unknown number:

$21 +x$

Multiplying the result by 3:

$3\times (21+x)$

84 more than two-thirds of the unknown number:

$\frac{2x}{3} +84$

Equating the equations, we have:

$3\times (21+x) = \frac{2x}{3} +84\\\\43+3x=\frac{2x}{3} +84$

Cross-multiplying, we have:

$43+3x=\frac{2x}{3} +84\\\\129+9x=2x+84\\\\9x-2x=84-129\\\\7x=-45\\\\x=\frac{-45}{7}$

Read more on word problems here: brainly.com/question/13170908

5 0

2 years ago

You have $23 in your bank account. You use you debit card and to pay for an item that costs $31. Your bank charges you a $40 ove

vitfil [10]

Your account is gonna be negative 48$

4 0

3 years ago

Read 2 more answers

After a new $28,000 car is driven off the lot, it begins to depreciate at a rate of 18.9% annually.

REY [17]

Answer:

C(t) = $28,000(0.811)^t (Answer A)

Step-by-step explanation:

The value of the car is decreasing. Thus, by the end of the first year of ownership, the car will have the value $28,000(1 -0.189)^1, where the "-0.189" represents DECAY instead of GROWTH.

Please use " ^ " to indicate exponentiation.

Then the desired formula is C(t) = $28,000(0.811)^t (Answer A)

4 0

3 years ago

Answer for this question?

mezya [45]

Go to mathpapa.com k

4 0

3 years ago

Solve the equation below. 2.3=p+0.6p=

Bas_tet [7]

Answer:

p=1.4375

Step-by-step explanation:

8 0

3 years ago