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Evgesh-ka [11]
3 years ago
8

Please help me find the value of X

Mathematics
2 answers:
Katen [24]3 years ago
5 0

Answer:

D. 20

Step-by-step explanation:

if x = 20 then 3 x 20 + 10 = 70

and x = 20 so 70 + 20 = 90

and since this is a right angle, it all matches up :)

Ymorist [56]3 years ago
3 0

Answer:

Is this

Step-by-step explanation:

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Classify the real number(natural,whole,integer,rational,irrational).
Ede4ka [16]

Answer:

Racional porque sua raiz é igual a 7.

Step-by-step explanation:

5 0
3 years ago
If you reduce a twelve times a number by 40, you get the same number as if you increase its seven times by 25. What number is th
Digiron [165]

Step-by-step explanation:

Take the number as x

12x-40=7x+25

collect like terms

12x-7x=25+40

5x=65(divide both sides by 5)

x=13

Therefore number is 13

6 0
3 years ago
In the first year of a 10,000 investment the interest rate was 6%. All earned interest remained invested for the second year, an
Aleks04 [339]

Answer:

13.4%

Step-by-step explanation:

First year:

$10,000*6% = $600

New balance = $10,600

Second Year:

$10,600*7% = $742

$10,600+ $742 = $11,342

Total Return:

Final Balance - Initial balance

$11,342 - $10,000 = $1,342

$10,000*x ÷ $1,342

x = $1,342/$10,000

x = 0.1342

0.134 = 13.4%

7 0
3 years ago
Write a summary can Smartphones improve student lives? why or why not ( in your own words )
bonufazy [111]

Answer:

Smartphones can imrove student lives by giving students the ability to contact their teachers to ask questions or comment on a specific work. they can also allow the student to look up answers and learn from what others think. Smartphones can also add distractions in class and allow an easy way to cheat on a test or a quiz. Overall Smartphones can be beneficial and harmful to a students life.

Step-by-step explanation:

4 0
3 years ago
Six times the sum of a number and twelve is forty. Which equation represents this?
luda_lava [24]

Answer:

6n + 12 =40

Step-by-step explanation:

5 0
2 years ago
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