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
ella [17]
3 years ago
10

Find the value of the variable.

Mathematics
1 answer:
Yuliya22 [10]3 years ago
3 0

Answer:

z = 20

Step-by-step explanation:

Assuming the triangles are similar write a proportion between the side lengths to solve for z.

\frac{9}{15}=\frac{32-z}{z}

To solve for z, multiply the numerator and denominator of each fraction.

9z = 15(32-z)

9z = 480 - 15z

24z = 480

z = 20

You might be interested in
Mr. Fat needs 20 minutes to eat a pound of cereal, while Mr. Thin needs 30 minutes. If they eat together, how long does it take
marishachu [46]
36 minutes.

(1/20)x+(1/30)x=1solve for x (x=0.8333333333......)
Considering they take the same times for all 3 pounds,
That would mean that since 1 pound takes 12 minutes, then 3 pounds take 36 minutes
4 0
4 years ago
The slope-intercept form of the equation of a line that passes through (-5,-1) and (10,-7) is y+7=-2/5(x - 10). What is the stan
wariber [46]

Answer:

2x + 5y = -15  OR 2x + 5y + 15 = 0  Not sure they want it equal to zero

Step-by-step explanation:

y + 7 = -2/5(x - 10)

y + 7 = -2/5 x + 4

2/5x + y =-3

5(2/5 x + y = - 3)

2x + 5y = - 15

OR

2x + 5y + 15 = 0

3 0
3 years ago
Evaluate inverse functions <br> What is the value of f^-1(4)
mihalych1998 [28]

Answer:

0

Step-by-step explanation:

f^-1(x) is a reflection on f(x)

So when f(4) = 0 so is f^-1(4) according to this function.

7 0
2 years ago
I need some tips and examples for subtracting integers. Appreciated!
Tcecarenko [31]

one tip:

Example: 4 - (-3)

it instantly becomes positive because the negatives are close to each other as shown.

hope that helps :)

5 0
4 years ago
Read 2 more answers
Need help with school
Korvikt [17]

Answer:

x=9

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Step 1 ax2 + bx + c = 0
    14·1 answer
  • The Ladybugs are coming to town for a concert. There is such excitement that the concert hall has set up six lines at the box of
    5·2 answers
  • Can someone help me please help help help please!!! ​
    5·1 answer
  • Shane deposited $200 into an account and earned $36 in interest after 3 years. Use the formula I = prt, where I represents simpl
    8·1 answer
  • HELPPP ASAPP Bernie's Bars has determined that a granola bar measuring 3 inches long has a z-score of +1 and a granola bar measu
    12·2 answers
  • It take Morgan 1/8 of an hour to write a page how many pages can Morgan write in 3/4 of an hour
    5·1 answer
  • The ratio of boys to girls in Ms. Cunningham’s class is 2 to 3. There are 18 girls in the class. What is the total number of stu
    6·1 answer
  • Write a function that is passed in a positive integer, n, and sum up all the digits from 1 to n, doubling the even numbers. In o
    15·1 answer
  • Ken ate half of his Takis. He gave 22 Takis to his best friend Moe. There are 38 Takis remaining in the bag. How many Takis were
    6·2 answers
  • Please help me .................
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!