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3 years ago

Four less than twice a number is 45 more than the number

Mathematics

1 answer:

enot [183]3 years ago

7 0

2x - 4 = x + 45
- x    - x
x - 4 = 45
    + 4   + 4
   x = 49

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What is an equivalent expression for (x+2)+3y

Olegator [25]

Answer: (x+3)+2y

Step-by-step explanation:

yes

7 0

3 years ago

20x+17=35x+30 help Is due tomorrow

svet-max [94.6K]

Answer:

x= $-\frac{13}{15}$

or 15x=-13

Step-by-step explanation:

20x+17=35x+30

20x-35x=30-17

-15x=13

x= $-\frac{13}{15}$

3 0

3 years ago

Read 2 more answers

Adam invested $12,000 in a six-year CD that paid 7.1% interest, but later needed to withdraw $2,500 early. If the CD's penalty f

Neporo4naja [7]

Answer:

Step-by-step explanation:

The amount Adam invested in a six years CD was $12,000 was 7.1%

Adam made a withdrawal of $2500 early. The early withdrawal was worth eighteen months of interest on the amount withdrawn.

Monthly interest = 7.1% / 12

= 0.59%

The interest for 18 months will be

(7.1% /12)18

= 10.65%

The penalty for withdrawing early was 18 months worth the interest on the amount withdrawn

= 2500 * 10.65%

= 266.25

This means Adam needs to pay a penalty of $266.25 for withdrawing early

7 0

3 years ago

Find the distance between points M and N. and if anyone could kinda explain how they got it so i can do the next ones on my own

WINSTONCH [101]

Answer:

$\sqrt{13} = D$

Step-by-step explanation:

Method #1

We can draw a right triangle on the graph upon where the points are located and use the Pythagorean Theorem:

${a}^{2} + {b}^{2} = {c}^{2}$

${3}^{2} + {2}^{2} = {c}^{2}$

$9 + 4 = {c}^{2}$

$13 = {c}^{2}$

$\sqrt{13} = c$

* Whenever we talk about distance, we ONLY want the NON-NEGATIVE root.

_______________________________________________

Method #2

We can use the Distance Formula:

$\sqrt{[-x_1 + x_2]^{2} + [-y_1 + y_2]^{2}} = D$

N[−3, 2] M[−6, 0]

$\sqrt{[3 - 6]^{2} + [0 + 2]^{2}} = D$

$\sqrt{[-3]^{2} + 2^{2}} = D$

$\sqrt{9 + 4} = D$

$\sqrt{13} = D$

* Whenever we talk about distance, we ONLY want the NON-NEGATIVE root.

** You see? It does not matter which method you choose, as long as you are doing the work correctly.

I am delighted to assist you anytime.

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3 years ago

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II 3 Find 6 X 915. Show your work.

love history [14]

Answer:

5490

Step-by-step explanation:

you multiply every number by 6 and you will get the answer

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3 years ago