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
Minchanka [31]
2 years ago
14

a hot air balloon descended 99.6 m in 12 seconds what was the balloons average rate of descent in meters per second

Mathematics
2 answers:
xz_007 [3.2K]2 years ago
4 0
The answer is 8.3 because 99.6 divided by 12 is 8.3 ;)

Yuki888 [10]2 years ago
3 0
The answer is 8.3 m/s
You might be interested in
Help me asap please <br> I'll mark you as brainliest
Viefleur [7K]

Answer:

2b/ab+3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Robert makes 50 litres of green paint by mixing litres of yellow paint and litres of blue paint in the ratio 2:3.
podryga [215]

Answer:

  • 35%

Explanation:

<u>1. Cost of each liter of yellow paint:</u>

Yellow paint is sold in 5 litre tins and ach tin costs £26, thus the cost of one liter is £26 / 5 liters = £5.2 per liter.

<u>2. Cost of each liter of blue paint:</u>

Blue paint is sold in 10 litre tins and each tin costs £48, thus the cost of one liter of blue paint is £48 / 10 liters = £4.8 per liter

<u>3. Cost of each liter of green paint.</u>

Green paint is made by mixing yellow paint and blue paint in the ratio 2:3

Thus, 5 liters of green paint will cost:

2 liters yellow paint: 2 liter × £5.2 / liter = £10.4

3 liters blue paint:     3 liter × £4.8 / liter = £14.4

                                 ==========              ========

5 liters green paint:   5 liter                        £24.8

Cost of one liter of gree paint: £24.8 / 5 liter = £4.96 / liter

<u>4. Profit</u>

Price of each liter of green paint: £66.96 / 10 liters = £6.696 / liter = £6.70 / liter

Profit per liter = price per liter - cost per liter = £6.70/liter - £4.96 / liter = £1.74 / liter

Percentage profit = profit per liter / cost per liter × 100

Percentage profit = (£1.74 / liter) / (£4.96/liter) × 100 =  35.08% = 35%

4 0
3 years ago
What is the average rate of change of the function f(x)=2x+4 over the interval -4 ≤ x ≤ 1? Table
Tom [10]

Answer:

2

Step-by-step explanation:

the rate of change is measured as

\frac{f(b) - f(a)}{b-a} in the closed interval [ a, b ]

here [a, b ] = [- 4, 1 ]

f(b) = f(1) = 2 + 4 = 6

f(a) = f(- 4) = - 8 + 4 = - 4

average rate of change = \frac{6-(-4)}{1-(-4)} = \frac{10}{5} = 2

7 0
3 years ago
Maria drives 130 miles in 2 hours. If she keeps driving at the same speed without stopping, what is the total time it will take
zlopas [31]
It would take her 10 hours.

Explanation: 650 divided by 130 is 5 and 2 hours multiplied by 5 hours is 10 hours. Sorry if I got it wrong, but hoped I helped.
3 0
2 years ago
Read 2 more answers
Please anyone help me answer this question am giving the brainliest
DochEvi [55]

Answer:

(-3/2x+1) + (3/x-1)

Step-by-step explanation:

Dont put the answer in parenthesis, I just did that to seprate it so it was easier to read. If you need it to be put in word form for it to be easier for you to understand, its "negative three divided by two x plus one, plus 3 divided by x minus 1"

First, rewrite the expression as 3x+6/2x^2+x-2x-1

Then, factor the expression, 3x+6/x*(2x+1)-(2x+1) (*=multiply)

Then, write a new fraction for each factor in the denominator, then write a new fraction, 3x+6/(2x+1)*(x-1) to (A)/2x+1 + B/x-1)

Then write terms in the numerators, for now we will use A and B.

Now we set the sum of the fractions equal to the original fraction.

3x+6/(2x+1)*(x-1) = A)/2x+1 + B/x-1).

Then reorder and group the terms, giving you 3x+6=(A+2B)x+(-A+B).

Now equate the coefficiants, {6= -A+B, 3= A+2B

Then substitute back, (A, B)=(-3, 3)

Now finally, just rewrite the fraction. (-3/2x+1) + (3/x-1)

Hope this helps! Sorry its kind of long.

6 0
2 years ago
Other questions:
  • Sharon is paving a rectangular concrete driveway on the side of her house. The area of the driveway is 5x^2 + 43x - 18, and the
    15·2 answers
  • To you divide fractions, you have to ______ by the reciprocal
    9·2 answers
  • SOMEONE HELP ME ASAP
    7·1 answer
  • What is the volume of a come if the base is 26 and the height is 8
    9·2 answers
  • A poll was conducted using a sample of 2500 registered voters to determine what proportion of voters are planning to vote for th
    7·1 answer
  • I need help! will give brainliest
    15·2 answers
  • PLS HELP ILL GIVE BRAINLIST!
    7·1 answer
  • A local community center built a rectangular basketball court using 100 feet of fence. They used part of one side of the buildin
    9·1 answer
  • Original price: $264.91<br> Markdown: 79%<br> The sale price is $
    6·1 answer
  • PLS HELP MEEEEEEEEEE The following table shows several ordered pairs of a function, m(x).
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!