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
disa [49]
3 years ago
12

Hi I need help with this question please thank you

Mathematics
1 answer:
belka [17]3 years ago
3 0

Answer:

hope this helped! Can you give me brainliest please? :))

Step-by-step explanation:

A: -7

E: +6.9

You might be interested in
Question 8b , thanks
marta [7]

Answer:

Step-by-step explanation:

a = \frac{2b+1}{3b-1}

b = 2/3

2b + 1 = 2*\frac{2}{3}+1\\\\=\frac{4}{3}+1\\\\=\frac{4}{3}+\frac{3}{3}\\\\=\frac{7}{3}\\\\3b-1 = 3*\frac{2}{3}-1\\\\=2- 1 = 1\\\\\\

a = \frac{2b+1}{3b-1}\\\\a=\frac{\frac{7}{3}}{1}\\\\=\frac{7}{3}\\\\

a = 7/3

b)

\frac{2b+1}{3b-1}=a\\\\

Cross multiply,

2b + 1 = a*(3b - 1)

2b + 1 = a*3b - 3*a

2b + 1 = 3ab- 3a

2b = 3ab - 3a - 1

2b - 3ab = -3a  - 1

b(2 - 3a) = -3a - 1

b =\frac{-3a - 1}{2 - 3a}

3 0
3 years ago
There are a total of 100 balloons. If the ratio of yellow balloons to blue balloons is 8 to 12, how many of them are yellow
Ivanshal [37]
If you have 8 yellow balloons for every 12 blue balloons, then if you have 20 balloons in total, 8 out of 20 of those balloons will be yellow. Then you can set up this ratio:

\frac{8yellow}{20total} = \frac{Xyellow}{100total}

Then, you can use either cross multiplication or multiply the numerator and denominator by the same number to help solve for x. Personally, I prefer cross multiplication, so that's what I'll show you here:

\frac{8yellow}{20total} = \frac{Xyellow}{100total} \\ 8yellow*100total=20total*Xyellow

Finally, solve for x:

8yellow*100total=20total*Xyellow \\ 8*100=20*x \\ 800=20x \\ 800/20=20x/20 \\ x=40yellow

If you had 100 balloons, you will have 40 yellow balloons.

Hope this helps!!
6 0
3 years ago
Which of the following answer is equivalent to this expression 8+12x
Vika [28.1K]

Answer:

what is the answer choices

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Define the opposite and the absolute value of -8.
umka2103 [35]

Answer:

The opposite of -8 is 0 and the absolute value in 8

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
a video store charges a one-time membership fee of $12.00 plus $1.50 per video rental. How many videos can stewart rent if he sp
Natasha_Volkova [10]
He could rent 6 videos if he spends $21.00
4 0
4 years ago
Other questions:
  • Alejandra has five hair ribbons measuring 8,13,11,9, and 13 inches long what is the median length of the ribbons
    15·1 answer
  • Can anybody tell me why I got the answer for rank 3
    7·1 answer
  • The cost of 4 cartons of fresh cream is $5.76. What is the cost of 13 such cartons? $16.25 $18.72 $18.76 $36.04
    15·1 answer
  • 7 12/8 = 7 + 1 ?/8 = ? 1/?
    15·1 answer
  • Use substitution and graphing to determine the solution to the following system of equations:
    8·1 answer
  • Two parallel lines are crossed by a transversal. Parallel lines x and y are cut by transversal w. On line x where it intersects
    14·2 answers
  • What is the product? enter your simplified answer in the box. −1/4⋅(−6/11)
    7·1 answer
  • How many cubic inches of storage space are in Leo’s cabinet ? Please help :)
    8·1 answer
  • What would be the next point to the right of point (1,1) if the slope of the line is 1/4?
    8·1 answer
  • Find an angle betwwen 0 and 2pie that is coterminal with -19pie/10
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!