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
melisa1 [442]
3 years ago
5

I need help with 9,11,12, and 13

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
8 0
#9
since LJ = LK + KJ, replace the letters with the corresponding equations. You'd get:
LJ = (7x-10) + 28
LJ = 7x + 18
Do you need an integer or is that okay?^
You might be interested in
Help me out please !!!!
Brums [2.3K]

Answer:

0.06 liters

Step-by-step explanation:

acid concentration of 65% means that it of 100 units of that solution 65 are acid, and the remaining 35 are water.

so, 100 units are 0.2 liters in this example.

that means that 65/100 × 0.2 = 0.13 liters are acid.

35/100 × 0.2 = 0.07 liters are water

we get a 50% concentration, when we have the same amount of water and acid in the solution (acid is only half of 50% of the solution).

the account of acid remains the same, as we are only adding water.

so, how much water do we need to get from 0.07 liters to 0.13 liters (the same as the already present acid) ?

0.13 - 0.07 = 0.06 liters

4 0
3 years ago
Caroline ordered 126 shirts: She plans to decorate the shirts
Rina8888 [55]

Answer:

25 and there a leftpover of 2

Step-by-step explanation:

3 0
3 years ago
Madeline has used 50 sheets of a roll of paper towels, which is 5/8 of the entire roll. The equation 5/8s = 50 can be used to fi
raketka [301]

Answer:

s=80

Step-by-step explanation:

5/8ths is .625

80 x .625 =50


4 0
3 years ago
Help help help help
Alex

Answer:

<h3>b=\frac{t-5}{4}</h3>

Step-by-step explanation:

4b+5=t

First, you must get the variable alone! Substract 5 from both sides!

4b<u>+5=t </u>

    -5  -5

The 5 cancels out because 5-5=0

The new equation is 4b=t-5

You must divide by 4 to get the variable alone since your solving for b!

<u>4b=t-5</u>

4      4

b= \frac{t-5}{4} \\

This is your answer!

5 0
3 years ago
You can eat no more than 40 slices of pizza each week. If you have
Svet_ta [14]

Answer: 5.7 slices

Step-by-step explanation:

7x=40. x represents number of slices per day, 7 is because you eat pizza every day and there's 7 days in a week.

Divide both sides by 7:

7x/7 = 40/7

x= 5.7

4 0
3 years ago
Other questions:
  • Terry uses 3 cups of pumpkin seeds to decorate the tops of 12 loaves of bread. She puts an equal amount of seeds on each loaf. H
    5·1 answer
  • In a certain city, 30 percent of the people are conservatives, 50 percent are liberals, and 20 percent are independents. records
    11·1 answer
  • Suppose the revenue (in dollars) from the sale of x units of a product is given by R(x) = 68x? + 76% 2x + 2 Find the marginal re
    14·1 answer
  • Simplify<br> -1/2 + 3-4x + 5 + 3/2x<br> Enter your answer in the box.
    8·2 answers
  • How many kilometers are equivalent to 3,570 meters?
    11·1 answer
  • How many solutions -3x+9-2x=-12-5X
    5·1 answer
  • The ______ states that you can add two or more numbers in any order and get the same sum.
    14·1 answer
  • Solve using the multiplication principle 4 x = 52
    5·2 answers
  • Giving Brainliest if correct!!
    12·2 answers
  • CLASS PROJECT An economics class formed a company to sell school supplies. They would like to sell at least 20 notebooks and 50
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!