3 years ago

tomas is thinking of a number. If he triples his number and subtracts 13 the result is 305. Of what number is tomas thinking

Mathematics

2 answers:

dezoksy [38]3 years ago

7 0

3x-13=305

3x=305+13

3x=318

(3x)÷3=318÷3

x=106

check.. (3×106)-13=305

318-13=305

305=305

sergeinik [125]3 years ago

3 0

305 is the answer hope this helps :)

You might be interested in

Fifteen percent of the cars in a parking lot are green. If there are 45 green cars, how many cars are there in the parking lot?

Olegator [25]

45/x =15/100
Cross multiply
15x=4500
Divide both sides by 15
X=300
300 total cars on parking lot

7 0

3 years ago

Damien deposited $250 in an account that earned 3.75% interest compounded annually.

nordsb [41]

Your answer will be
250(1+3.75/100)^4
=289.66260375977
Nearest to =289.7

6 0

3 years ago

Please help me! I need this answered fast!

Sonja [21]

Answer:

1. I think it's A.

2. I think it's D

8 0

3 years ago

In a sample of 53 walking canes, the average length was found to be 34.3in. with a variance of 1.9. Give a point estimate for th

Anna11 [10]

Answer:

1.38

Step-by-step explanation:

The point estimate for the population standard deviation of the length of the walking canes is given as the squareroot of variance. Since variance is provided as 1.9 then the standard deviation will be

$\sqrt 1.9=1.37840487520902\approx 1.38$

Therefore, rounded off to two decimal places, the standard deviation is approximately 1.38

6 0

3 years ago

Two squares have sides 12cm and 4cm respectively. What is the ratio of their sides

Nookie1986 [14]

Answer:

3 : 1

Step-by-step explanation:

We have to compare the value of two sides.

Ratio of sides = 12 : 4 = $\dfrac{12}{4}=\dfrac{4*3}{4*1}=\dfrac{3}{1}$

= 3 : 1

6 0

2 years ago