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
Ann [662]
3 years ago
9

Need help with math

Mathematics
2 answers:
11Alexandr11 [23.1K]3 years ago
7 0
The answer is 13 btw.
kherson [118]3 years ago
4 0
So you use the idea of similar triangles. The ratio of the sides for big triangle:little triangle is 20:5 (simplified to 4:1). To find x, you use this ratio - 52/4 = 13 so x=13
You might be interested in
What formula do i use when it tells me to find the area with a given circumference? If you know please give an example as well,
liberstina [14]

Answer:

Step-by-step explanation:

A = C^2 / 4 x pi

so if the circumfernce was 10 you would square it to make it 100 and then you would do 4 x pi to get 12.57 ( rounded).

you would then just divide 100 by 12.57 = 7.96 ( rounded)

hope it helped

6 0
3 years ago
What is the side length of the square if A=81 m squared
Nesterboy [21]

Answer:

The side length is 9m

Step-by-step explanation:

A = 81 m^2

Since the figure is a square, we know the area of a square is A = s^2 where s is the side length

81 m^2 = s^2

Take the square root of each side

sqrt(81 m^2 ) = sqrt( s^2)

9 m = s

The side length is 9m

8 0
3 years ago
There is a bag filled with 3 blue and 4 red marbles. A marble is taken at random from the bag, the colour is noted and then it i
Morgarella [4.7K]

altogether there are 7 marbles in the bag.

put the marbles in fractions, so blue would be 3/7

and red would be 4/7. but becuase you need 2 of the same, you do

3/7 x 3/7 = 9/49

4/7 x 4/7 = 16/49

then add them togther

25/49

if you need it as a percentage, it is

51.020408163265%

8 0
3 years ago
Describe the process you would use to find the solution to the problem 3 1/4 1 1/3− . Express your answer numerically and with a
oksian1 [2.3K]
3 1/4-11/3
31/4 simplifies to 13/4
So you now have 13/4-11/3
Which is -5/12
your final answer is -5/12
7 0
3 years ago
Doing Ratios, rates, and unit rates please help me I need this done by tommorow but people don't wanna answer I've asked multipl
stiv31 [10]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ 24. D. 18 minutes  25. C. 12  

To solve for number 24, you know that the teacher can grade 5 exams in 3 minutes. He's grading a total of 30 exams. We multiply 5 x 6 to get 30 and we also multiply 3 x 6 to get 18.

To solve for number 25, you know the Dukes have won 3 out of 5 of their last games. The season has 20 games so we multiply 5 x 4 to get 20 and 3 x 4 to get 12.

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

6 0
3 years ago
Other questions:
  • The value of the _____ determines whether the graph of an exponential function increases or decreases from left to right.
    9·2 answers
  • Kerry is comparing the fuel efficiency of two cars, Car A and Car B. Car A lists gas mileage as 32.4 miles per gallon for highwa
    6·1 answer
  • -2(x-6)+7=35<br> How do I solve this equation with all the steps
    10·1 answer
  • 4 more than one third of a number n is 6. An equation is? The solution is n =?
    13·1 answer
  • Factor x^2-x+3=3 please :D
    7·1 answer
  • Pls i will give brainliest<br> solve the equation: 3x^3-x^2=x^2
    10·2 answers
  • Irene is cutting construction paper into rectangles for a project. She needs to cut one rectangle that is 8 inches × 13 1/2 inch
    11·1 answer
  • Write an expression for the sequence of operations described below.
    15·2 answers
  • HELP ME LOOK AT THE PHOTO
    10·1 answer
  • A lot is 50m by 38m. A house 30m by 9m is built on the lit. How much area is left over
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!