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
natka813 [3]
3 years ago
12

Find the value of x.

Mathematics
1 answer:
amm18123 years ago
7 0

Answer:

Step-by-step explanation:

By similar triangles (use the two smaller ones

7 / x = x / 3         Cross multiply

x^2 = 21              Take  the square root of both sides

√x^2 = √21

x = √21

You might be interested in
Suppose 6 quarts of a solution that is 52% antifreeze is mixed with 10 quarts of a solution that is 32% antifreeze. (A) how many
Vadim26 [7]
The total amount of the resulting mixture can be calculated by adding up the volume of the given substances assuming that volume addition is applicable given the properties of the fluids used. 

That is,
   T = 6 quarts + 10 quarts = 16 quarts

The total volume of the resulting mixture is 16.

Then, we do the component (antifreeze) balance by adding up the resulting antifreeze from the substances to the total. We let x be the percentage of antifreeze in the final mixture.

    6(0.52) + 10(0.32) = 16(x)

The value of x from the equation is 0.395.

Therefore, the answer to this item is 39.5%. 
4 0
3 years ago
Ethan throws a ball into the air from a cliff that is 152.4 m high with an initial velocity of 4 m/s. How long does it take for
Dmitry_Shevchenko [17]
38.1 seconds I believe simply divide 4m/s into 152.4 m and you will have 38.1 seconds
8 0
3 years ago
Read 2 more answers
Your family loves turkey! Uncle Bill ate 1/4 of the turkey, cousin Chris ate 15% of the turkey, cousin Timmy ate 0.3 of the turk
Sladkaya [172]
(1 / 4) = .25
.25 * 100% = 25%
Uncle Bill ate 25%
Cousin Chris ate 15%
.3 * 100% = 30%
Cousin Timmy ate 30%
Little Dave ate 12%
You ate none.

Cousin Timmy ate the most, 18% of the turkey is left, and 82% of the turkey was eaten.


Defend my work in writing:

I converted my fractions and decimals to percents to find the different percents eaten for each person.
6 0
3 years ago
Need help with this question
miskamm [114]
Y = t + 9. hope this helps
8 0
3 years ago
Based upon historical data, it is known that 8% of 12-egg cartons contain at least one broken egg. A grocery store manager would
kakasveta [241]

Based on the 5 trials, 1 carton of eggs is expected to contain at least one broken egg, on average

<h3>How to determine the number of cartons</h3>

From the question, we understand that only one of the first 10 double-digit numbers is between 01 and 08

This means that:

The average carton or the expected value of eggs in the simulation is 1

Hence, 1 carton of eggs is expected to contain at least one broken egg, on average

Read more about expected values at:

brainly.com/question/15858152

4 0
2 years ago
Other questions:
  • Find what percentage of 60 is 15​
    7·1 answer
  • Please Help With Math
    11·2 answers
  • The circle below is centered at the point (3,1) and has a radius length of 2.What is its equation
    7·1 answer
  • Two dives are tossed once what is the probability that the sum is less than 7
    8·1 answer
  • The sum of 39 and a number
    10·1 answer
  • Find the equation of the least squares regression line. Show all calculations, and be sure to define any variables used.
    5·1 answer
  • I need this ASAP <br><br>A= Y=6+x<br><br><br>B =y=6-x<br><br><br>C= y=x-6<br><br><br>D= y=6x
    5·1 answer
  • Evaluate 5h when h = 7 Help
    7·1 answer
  • Rectangle measures 2 1/4 meters 1 7/8 meters what is its area<br> Plss help
    7·1 answer
  • To find the height of a pole, a surveyor moves 150 feet away from the base of the pole and then, with a transit 4 feet tall, mea
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!