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
Gekata [30.6K]
3 years ago
12

A while back, either James borrowed $12 from his friend Rita or she borrowed $12 from him, but he can’t quite remember which. Ei

ther way, he is planning to pay her back or ask that she pay him back this afternoon. If he has $42.80 in his wallet, which equation represents the amounts of money he may have after he sees Rita?
Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
6 0
The answer is x=42.8+- (plus or minus) 12

So he should either have $30.80 or $44.80 left 
You might be interested in
A casino features a game in which a weighted coin is tossed several times. The table shows the probability of each payout amount
kkurt [141]

Answer:

The expected payout of the game is $230.46.

Step-by-step explanation:

The given table is

Payout Amount :    $160       $4400      $145000      

Probability         :    0.146       0.024          0.0007

We need to find the expected payout of the game.

The formula for expected payout is

\text{Expected payout}=\sum n_iP(x_i)

where, n is amount and P(x) is probability of that event. The value of n is negative for loss.

Using the above formula we get

\text{Expected payout}=160\times 0.146+4400\times 0.024+145000\times 0.0007

\text{Expected payout}=23.36+105.6+101.5

\text{Expected payout}=230.46

Therefore the expected payout of the game is $230.46.

6 0
3 years ago
the rectangle shown has an area of 105 square inches. the width is x+ 16 inches and the length is x. find the dimensions of the
Brums [2.3K]

Answer:

Length = 5

Width = 21

Step-by-step explanation:

(x)(x + 16) = 105

x^2 + 16x = 105

x^2 + 16x - 105 = 0

(x - 5) x ( x + 21) = 0

x - 10 = 0

x = 5

x + 21 = 0

x = -21

Now that we have the zeroes.

We have to find the most viable one to put in.

Using -21 would not make sense, so we will use 5.

Plug it in:

x = 5

(5) (5 + 16) = 105

5 ( 21) = 105

6 0
3 years ago
1.the ratio if the weight of an object on mars to its weight in earth is 9 to 25.If a person weighs 120pouns on earth,how much w
Ilya [14]
Question #1
\frac{9}{25}=\frac{x}{120}\\\\120(9) = 25x\\\\1080 = 25x\\\\x= 43.2

For #1, the answer is 43.2

Question #2
\frac{6}{5} = \frac{2580}{x} \\\\2580(5) = 6x\\\\12900 = 6x\\\\x = 2150

For #2, the answer is 2150
8 0
3 years ago
HELP ASAP (1O BRAILY/POINTS FOR ANSWER)
shutvik [7]

Step-by-step explanation:

x + y = 3 ---------------- eqn 1

y = -6x + 3 ------------- eqn 2

Substitute y for -6x + 3 in equation 1

x + -6x + 3 = 3

x - 6x + 3 = 3

-5x + 3 = 3

Collect like terms

-5x = 3 - 3

-5x = 0

Divide both sides by -5

x = 0

Hope this helped!

5 0
2 years ago
Read 2 more answers
19<br> 8<br> How do you rename this as a mixed number
insens350 [35]

Answer:

2 3/8

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • a taxicab charge 3.00 for the first mile and 0.50 for each additional half mile. after 6 mile trip a cumoster handed the taxi dr
    9·1 answer
  • If you roll two fair sided dice what is the probability that at least one die shows a 3
    6·1 answer
  • How many 1/8 cups are in 4/5 cups
    8·1 answer
  • The theoretical probability of a customer
    12·1 answer
  • Help me on this I don't get maths
    14·2 answers
  • Write an equation that represents the function. (linear equations)
    5·1 answer
  • An infinite sheet of charge, oriented perpendicular to the x-axis, passes through x = 0. It has a surface charge density ?1 = -4
    14·1 answer
  • The lateral surface area of a cylinder in terms of its radious
    6·1 answer
  • Subtract the linear expressions. (−2.6x+4.2)−(3.9x+2.5) What is the difference? Enter your answer in the box.
    15·2 answers
  • Write a function g whose graph is a horizontal shrink by a factor of 1/3
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!