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
jolli1 [7]
3 years ago
15

Help with this math question

Mathematics
1 answer:
Art [367]3 years ago
5 0
Answer: option J: 128 joules

Explanation:

1) From the table you try to find which relation best fits the data.

2) Your best first assumption is that the data may fit a proportional relation.

3) To prove that you find the ratio of Energy ouput to Amount of chemicals.

Doing that you find:
 20        32         48       60
----- =  ------- =  ------ = ------ =  4
  5          8           12      15


4) Then you have found a direct relation whose ratio is 4 joules / mol. So, you can apply that constant to the number of moles given:

Energy = 4  joules / mol × 32 mol = 128 joules
You might be interested in
11. Find f(-1) for the function. f(x) = 3x - 4
Archy [21]

Answer:

It is -7.

Step-by-step explanation:

Since x = -1, we can replace the x with -1 to get: -3 - 4 which is -7.

6 0
2 years ago
Read 2 more answers
Lauren drove her car 20 miles on 10 gallons and gasolin. At this rate, how many gallons qill she use on a 1,200 mile trip?​
ser-zykov [4K]

Answer:

600 gallons

Step-by-step explanation:

10÷20=0.5

0.5 x 1,200=600 gallons

3 0
2 years ago
What’s the difference between m=change in y and change in x and m =y2-y1and x2-x1
Mademuasel [1]

it's the same thing

slope =  \frac{Δy}{Δx} or  \frac{change \: in \: y}{change \: in \: x}  =  \frac{y2 - y1}{x2 - x1}  =  \frac{rise}{run}

4 0
3 years ago
Choose the composite number<br> Α.49<br> Β.43<br> C. 19<br> D.37
yan [13]

Answer:

A

Step-by-step explanation:

A composite number is a number that has more than two factors, including one and itself.

3 0
3 years ago
Read 2 more answers
Four - fifths of z added to six equals eight
ella [17]
The four-fifths of  a number, in this case, z is four times the number divided by z. That is 4z/5. When we add six to the product and equate the expression to 8, we get,
                                  4z/5 = 8
The value of z from the equation is 10.
4 0
3 years ago
Other questions:
  • Larinda cooked a 4-kilogram roast.The roast left over after the meal weighed 3 kilograms. How many grams of roast were eaten dur
    13·1 answer
  • What is the interquartile range (IQR) for the data set 14,15,17,19,20,23,26,30,32
    10·2 answers
  • Can anyone help check if my calculation is correct or wrong?
    7·2 answers
  • Fundamental Theorem of Algebra...
    12·1 answer
  • (X2)3<br> Power of a power rule
    13·1 answer
  • Uh yeah just answer the question on the pic :)
    10·2 answers
  • I really help with this ill mark u brainliest pls
    12·1 answer
  • What phrases describes the expression of 16-y​
    13·1 answer
  • Simplify the following expressions
    15·1 answer
  • The triangle below is isosceles. Find the length of side x in simplest radical form with
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!