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
tatiyna
3 years ago
6

I have three times as much money as does my brother. Our combined total is $42. How much does each of us have?

Mathematics
1 answer:
nika2105 [10]3 years ago
4 0
For an instance, i stands for the money that you have, and b stands for the money that brother has.
An equation system based on the problem would be
i + b = 42 (equation 1)
i = 3b (equation 2)

Use substitution method to solve the problem
substitute 3b into i in the equation 1
i + b = 42
3b + b = 42
4b = 42
b = 42/4
b = 10.5

substitute the value of b into the equation 1
i = 3b
i = 3(10.5)
i = 31.5

You have $31.5 and your brother has $10.5
You might be interested in
Nora measured a community college and made a scale drawing. She used the scale 3 millimeters : 2 meters. If a building at the co
ikadub [295]

Answer:64 Meters

Step-by-step explanation:

8 0
3 years ago
Please help me with these problems !
Semmy [17]
7. 60 degrees
8. 33 degrees
9. 37 degrees
10. 74 degrees
6 0
3 years ago
I need help ASAP jsnsnsbdbsbsnsnsnd
VashaNatasha [74]

Answer:

9 comedy

12 horror

Step-by-step explanation:

First, there are 360 degrees in a circle.

Comedy = 90 degrees

Action and romance = 90 degrees combined

Horror = 120 degree

Science fiction = 60 degrees

To find sci fi : 90 +90 +120 = 300 - 360 = 60 degrees

36 students took the survey.

1/4 × 36 = 9

Horror is 120 degrees out of 360 degrees or 1/3 of the circle.

1/3 × 36 = 12

6 0
3 years ago
Read 2 more answers
one day a corn stalk was 0.85m tall. A tomato plant was0.850m. A carrot top was 0.085m.Which plant was the shortest?
aniked [119]
The carrot top is the smallest
4 0
2 years ago
Read 2 more answers
Which equation best represents a trend line for the scatter plot?
kvasek [131]
Y = (-3/7)x + 4

Looking at the graph, you can see the trend line plotted. And conveniently, there are a couple of points on the trend line that are indicated. Those points being (0,4) and (7,1). The equation of a line in slope intercept form is:y = ax+b

Looking at the points available, the point (0,4) already gives us the y intercept since x is equal to 0. So our equation becomes:
y = ax + 4

Now we need to determine a which is the slope. The slope is the change in y divided by the change in x. So let's do that
(1-4)/(7-0) = -3/7

And now our equation becomes:
y = (-3/7)x + 4

And given formatting issues, the first option available is the correct one.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Kate begins solving the equation StartFraction 2 Over 3 EndFraction left-parenthesis 6 x minus 3 right-parenthesis equals StartF
    13·2 answers
  • One half Of a number added to two thirds Of The number Is 21 . Find The number.
    13·2 answers
  • The mathematical model C=500x+70000 represents the cost in dollars a company has in manufacturing x items during a month. How ma
    11·1 answer
  • Will give brainliest plz hep!!!!!
    5·1 answer
  • Need help with math problems​
    9·1 answer
  • Explain which properties you would use to fully expand (the problem in the screenshot)
    12·1 answer
  • Which quadratic inequality does the graph below represent?
    5·1 answer
  • Solve by making a proportion. If seven movie tickets cost $57.40, how much would 5 tickets cost?
    15·1 answer
  • Which function has the greatest rate of change?
    5·1 answer
  • The relationship between altitude and the boiling point of a liquid is linear. At an altitude of 8100 ft, the liquid boils at 20
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!