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
Airida [17]
3 years ago
12

Which of these strategies would eliminate a variable in the system of equations?

Mathematics
1 answer:
BartSMP [9]3 years ago
3 0

Answer:

what are the strategies

Step-by-step explanation:

You might be interested in
You run one lap around a mile track every 8 minuets. Your friend runs around the same track every 10 minutes. You both start at
GalinKa [24]
So 8x5=40 and 10×4=40 so you and your friend meet at the 40 th min
6 0
3 years ago
Regis leans a 10-foot ladder against a wall. The base of the ladder makes a 65 angle with the ground.
hammer [34]

The distance, In feet, from the base of the ladder to the base of the wall is 4.2 ft.

He needs to move the ladder 0.1 ft closer to the base of the building.

The situation forms a right angle triangle.

<h3>Right angle triangle</h3>

Right angle triangle has one of its angles as 90 degrees. The sides and angle can be found using trigonometric ratios.

The length of the ladder is the hypotenuse of the triangle formed. Therefore, the distance, In feet, from the base of the ladder to the base of the wall can be calculated as follows;

cos 65° = adjacent / hypotenuse

cos 65° = d / 10

d = 10 × 0.42261826174

d = 4.22618261741

d = 4.2 ft

She needs to move the ladder so it reached a window 9.6 feet above the ground. Therefore, the distance from the base of the ladder and the wall is as follows;

cos 65 = d / 9.6

d = 9.6 × 0.42261826174

d = 4.05696

d = 4.1

Therefore, he needs to move the ladder 0.1 ft closer to the building.

learn more on right angle triangle here: brainly.com/question/14988069

8 0
2 years ago
College students average 8.6 hours of sleep per night with a standard deviation of 35 minutes. If the amount of sleep is normall
Soloha48 [4]

Answer:

4.27%

Step-by-step explanation:

We have been given that college students average 8.6 hours of sleep per night with a standard deviation of 35 minutes. We are asked to find the probability of college students that sleep for more than 9.6 hours.

We will use z-score formula to solve our given problem.

z=\frac{x-\mu}{\sigma}

z = z-score,

x = Random sample score,

\mu = Mean,

\sigma = Standard deviation.

Before substituting our given values in z-score formula, we need to convert 35 minutes to hours.

35\text{ min}=0.58\text{ Hour}

z=\frac{9.6-8.6}{0.58}

z=\frac{1}{0.58}

z=1.72

Now, we need to find P(z>1.72).

Using formula P(z>a)=1-P(z, we will get:

P(z>1.72)=1-P(z

Using normal distribution table, we will get:

P(z>1.72)=1-0.95728

P(z>1.72)=0.04272

0.04272\times 100\%=4.272\%

Therefore, 4.27% of college students sleep for more than 9.6 hours.

7 0
3 years ago
A machine of a fast food restaurant produces a bag of French fries
Anni [7]
At 08:00 there are 18 bags
At 08:10 there are an extra 10 produced = 28 but 1/2 are consumed leaving 14
At 08:20 there are an extra 10 produced = 24 but 1/2 are consumed leaving 12
At 08:30 there are an extra 10 produced = 22 but 1/2 are consumed leaving 11
At 08:36 another 6 have been produced = 17 bags
4 0
2 years ago
What is –12x–9=–6y in standard form?
Mars2501 [29]
-12x - 9 = -6y
-12x + 6y  -9 = 0

-12x + 6y = 9  is the answer

5 0
2 years ago
Other questions:
  • Two parallel lines are crossed by a transversal . What is the value of k?
    6·2 answers
  • All of them plz I need help if ur older Shouldnt be hard
    14·1 answer
  • HELP!!! ASAP
    9·1 answer
  • Solve for f<br> -f + 2+ 4f = 8 - 3f
    8·1 answer
  • Use the following information to find PD and EQ.
    14·1 answer
  • What is the slope of y = 4 - 2x
    14·2 answers
  • A cylinder shaped container has a radius of 25 centimeters and a height of 100 centimeters. A glass sphere with a radius of 10 c
    13·1 answer
  • The difference of two numbers is 4. Their sum is 18. Find the numbers.
    5·2 answers
  • 1.99x+6=2.50x can someone help me
    8·1 answer
  • PLSSS help if you TURLY know THISS
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!