1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lorasvet [3.4K]
3 years ago
5

The sum of Thalia and her brother's age is 41. If Thalia is three years older than her brother, how many years old is Thalia?

Mathematics
1 answer:
LekaFEV [45]3 years ago
4 0

Answer:

the thalia age be 19 years

Step-by-step explanation:

Let us assume her brother age be x

Now the thalia age be x - 3

Now the equation would be

x + x - 3 = 41

2x = 41 + 3

2x = 44

x = 22

thalia age be

= 22 - 3

= 19

Hence, the thalia age be 19 years

And, her brother age be 22 years

The same is to be considered

You might be interested in
Mrs pender shows her students 2 sticks measuring 6 inches and 2 sticks measuring 8 inches. She asked the student to arrange the
MrMuchimi

Answer:

The answer is A got it correct on the test

Step-by-step explanation:

have a good day!

3 0
3 years ago
Write using exponents. Work from left to right on the grid. 7*7*7*7
amm1812
7^4  the ^ is the exponent symbol if you did not know 
7^4=2,401
8 0
3 years ago
Read 2 more answers
A machine can make 56 parts in 4 hours.It can also make 70 parts in 5 hours. Write an equation that relates the number of parts
ira [324]

Answer:

126 parts in 9 and a half hours

Step-by-step explanation:

56 parts in 4 hours

that means 56 parts in 240 mins

9 hours and 30 minutes in minutes is 570 minutes

56m parts:240 mins

                 540 mins

to get to 540 from 240, you multiply by 2.25.

you can work this out by doing 540 divided by 240

now, multiply 56 by 2.25.

the answer is 126 parts

5 0
3 years ago
Assume a simple random sample of 10 BMIs with a standard deviation of 1.186 is selected from a normally distributed population o
kirza4 [7]

Answer:

a) H0: \sigma = 1.34

H1: \sigma \neq 1.34

b) df = n-1= 10-1=9

And the critical values with \alpha/2=0.005 on each tail are:

\chi_{\alpha/2}= 1.735, \chi_{1-\alpha/2}= 23.589

c) t=(10-1) [\frac{1.186}{1.34}]^2 =7.05

d) For this case since the critical value is not higher or lower than the critical values we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is not significantly different from 1.34

Step-by-step explanation:

Information provided

n = 10 sample size

s= 1.186 the sample deviation

\sigma_o =1.34 the value that we want to test

p_v represent the p value for the test

t represent the statistic  (chi square test)

\alpha=0.01 significance level

Part a

On this case we want to test if the true deviation is 1,34 or no, so the system of hypothesis are:

H0: \sigma = 1.34

H1: \sigma \neq 1.34

The statistic is given by:

t=(n-1) [\frac{s}{\sigma_o}]^2

Part b

The degrees of freedom are given by:

df = n-1= 10-1=9

And the critical values with \alpha/2=0.005 on each tail are:

\chi_{\alpha/2}= 1.735, \chi_{1-\alpha/2}= 23.589

Part c

Replacing the info we got:

t=(10-1) [\frac{1.186}{1.34}]^2 =7.05

Part d

For this case since the critical value is not higher or lower than the critical values we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is not significantly different from 1.34

5 0
2 years ago
I NEED HELP PLEASE IF I GET THIS WRONG ILL FAIL MY EXAM
Finger [1]

3 units
you have to use the distance formula to find the answer. it comes out as u have to square nine and nine squared is 3
7 0
3 years ago
Other questions:
  • 7 copies of 1 fourth
    13·2 answers
  • Which expression shows 0.95 in expanded form?
    8·1 answer
  • Can someone please help
    11·1 answer
  • I need help again and sorry ik this is easy but please
    7·2 answers
  • Find the surface area of the cylinder if the radius is 3 and the height is 12.
    9·1 answer
  • Please tell i really need the answer:
    5·1 answer
  • Graph the line with slope 2/3 passing through the point (-3,-3)
    9·1 answer
  • Help PLEASE!!!!!!!!!!!!!!!
    9·1 answer
  • Need help. <br>Please show your work if possible!!​
    10·1 answer
  • 31. The angle measures of a triangle are 28°, 70°, and 82°. Classify the triangle by its angle measures.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!