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
Stels [109]
3 years ago
8

The first truck in a convoy will carry 12 tons of dirt while each additional truck will carry 8 tons of dirt. Write a rule to mo

del th situation. Then use the rule to find how many tons of dirt can be carried by 7 trucks. Let n represent the number of trucks and t represent the tons of dirt.
Mathematics
1 answer:
Mashutka [201]3 years ago
6 0
12 + 8n = t
 
68 tons of dirt will be hauled
You might be interested in
If Mitch bicycles at an avenger speed of 18 miles per hour,how long will it take him to cover 76.5 miles?
Lisa [10]

Answer:

b

Step-by-step explanation:

6 0
3 years ago
In a math class, 12 out of 15 girls are freshmen and 11 out of 15 boys are freshmen. What is the probability that in a randomly
SashulF [63]

Answer:

P(2FG|3FB) = \frac{605}{7917}

Step-by-step explanation:

Combinations are a way to calculate the total outcomes of an event where order of the outcomes does not matter.To calculate combinations the below  formula is used:

nCr = \frac{n!}{r!(n-r)!}

where n represents the total number of items and r represent the number of items being chosen at a time. The '!' represents factorial function which is the product of all integers equal to and less than the given integer. This can be calculated manually using the formula or by using the nCr function on a scientific calculator.

Thus, the number of ways to select 2 freshmen girls (2FG) and 3 freshmen boys (3FB) can be determined. The number of ways to select 5 students (5S) can be determined in the same way.

2FG = 12C2 = \frac{12!}{2!(12-2)!} = \frac{12!}{2!(10)!} = 66

3FB = 11C3 = \frac{11!}{3!(11-3)!} = \frac{11!}{3!(8)!} = 165

5S = 30C5 = \frac{30!}{5!(30-5)!} = \frac{30!}{5!(25)!} = 142506

The probability of selecting 2 freshmen girls (2FG) and 3 freshmen boys (3FB) when selecting 5 students out of 30 is given as below:

P(2FG|3FB) = \frac{2FG*3FB}{5S} = \frac{66*165}{142506} = \frac{605}{7917}

4 0
3 years ago
What are the three ways that you can measure pH?<br><br> Please help<br><br> Thank you
Katena32 [7]

Answer:

Beginner. Use a paper strip coated in a pH indicating dye. Dip the strip into the water and wait for the strip to change color. ...

Intermediate. Use a pH testing kit for liquids. ...

Advanced. A digital pH meter can be used to obtain the most accurate reading of the pH level.

Step-by-step explanation:

3 0
3 years ago
A rectangular yard has a total perimeter of 220 feet. The widths of the yard are each 30 feet shorter than the lengths of the ya
ziro4ka [17]

Answer:

L = 70   W = 40

Step-by-step explanation:

P = 220 ft

W = L - 30

I started guessing numbers for L that would work. When I did this, I made sure that all of the sides added up to 220 ft.

5 0
3 years ago
This is so confusing D: Please help
just olya [345]
4 treats x=4 yesssssss i think thats it
7 0
3 years ago
Other questions:
  • Solve 4x - 5x + 2 = 3(2x - 4) <br> A. 2 <br><br> B. 3<br><br> C. 4<br><br> D. 5
    13·1 answer
  • John is participating in a marathon that is 26 2 miles. His distance (d, in
    12·1 answer
  • How tall is a building that casts a 71​-ft shadow when the angle of elevation of the sun is 29 degrees​?
    10·1 answer
  • How do I find the domain and range of the function and how can I tell if it's discreet or continous?
    12·1 answer
  • Given f(x)=2x^2 8 and g(x)=5x-6, find each function.(f g)(x)(f*g)(x)
    11·1 answer
  • ASAP pls help me with 2 and 3 with work shown (cause my math teacher says it's required..sigh) PLS HELP ME THANK YOUUU
    7·2 answers
  • It was -5°C in Copenhagen and -12°C in Oslo. which city was colder?​
    6·1 answer
  • arianna has a large piece of fabric that she wants to use to make some scarves. the number n of scarves she can make is inversel
    5·1 answer
  • 3y - 15 =y + 1 solve for y
    10·1 answer
  • You have to give more than 5 gifts to friends this Christmas. You decide to give everyone scented candles. The candles in plain
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!