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2 years ago

If you add 5 to me and then divide by 9 you get 3 what number am I

Mathematics

2 answers:

Harlamova29_29 [7]2 years ago

7 0

Form an equation using the information provided
x = number
(x + 5)/9 = 3
multiply by 9
x + 5 = 27
then solve
x = 22

Katyanochek1 [597]2 years ago

3 0

You are simply reversing the equation

(X+5)/9=3

First times 3 by 9 giving you 27

X+5=27

Now subtract 5 to get your answer

27-5=22

and 22 is your answer!!!!

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Solve the triangle.

saw5 [17]

Answer:

Step-by-step explanation:

because c is shorter than a we know C is a smaller angle than A

so the first choice is out.

use the law of cosines to find b

$b^{2}$ = $a^{2} +c^{2} -2*a*c*cos(B)$

$b^{2}$ =1681+400-1326.787871

$b^{2}$ = 754.21219

b= $\sqrt{754.21219}$

b= 27.46292

so the last choice looks good

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2 years ago

The baby giraffe weighed 132 pounds at birth. He gained weight at a steady rate for the first 7 months until his weight reached

marusya05 [52]

Answer:

the giraffe gained 58 pounds each month.

Step-by-step explanation:

do 538-132 then do 406÷7. you will get 58.

hope this helps!

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3 years ago

At 2:00 PM the temperature is 18°F. At 10:00 PM the temperature is -9°F.

Diano4ka-milaya [45]

Answer:

To figure out the change, we subtract the original temperature by the following after temperature.

18°F - original

-9°F - subsequent time after original

So we set up the equation;

18°F - (-9°F)

(Two negatives combine to form a positive)

18°F + 9°F

= 27°F was the change in temperature.

4 0

2 years ago

There are 800 students in the School of Business Administration. There are four majors in the School: Accounting, Finance, Manag

dezoksy [38]

Answer:

Major $X_i$ %

_________________________________________

Accounting 240 (240/800)*100=30%

Finance 160 (160/800)*100=20%

Management 320 (320/800)*100=40%

Marketing 80 (80/800)*100= 10%

_________________________________________

Total 800 100%

Step-by-step explanation:

For this case we can create the following table calculating the percent frequency as:

$\% = \frac{X_i}{n}$

Where $X_i$ represent the number of students for the i category and n the total sample size.

Major $X_i$ %

_________________________________________

Accounting 240 (240/800)*100=30%

Finance 160 (160/800)*100=20%

Management 320 (320/800)*100=40%

Marketing 80 (80/800)*100= 10%

_________________________________________

Total 800 100%

The pie chart is on the figure attached. We use excel to create it.

5 0

2 years ago

PQ is parallel to RS. The length of RP is 4cm; the length of PT is 16cm; the length of QT is 20cm. What is the length of SQ?

Step2247 [10]

Hello,

Using the theorem of Thalès,
PR/TP=QS/TQ==>QS=4*20/16=5

Answer A

3 0

3 years ago