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
gavmur [86]
2 years ago
12

John has four more buckles than dimes in his pocket, for a total of $1.25 which equation could be used to determine the number o

f dimes (x) in his pocket.
Possible choices:
A.) 0.10(x+4)+.05x=1.25
B.) .05(x+4) + .10x=1.25
C.) 0.10(4x) + .05x = 1.25
D.) 0.05 (4x) + 0.10x = 1.25
Mathematics
1 answer:
Phoenix [80]2 years ago
3 0
1.25=x+(x+4)
1.25=0.10x+0.05(x+4)

The answer is B.

Hope this helps :)
You might be interested in
Helpp plz i'll mark brainliest (see picture). <br> The second part is, What is the value of y?
Art [367]

Answer:

116*

Step-by-step explanation:

36* + 28* = 64*

180* - 64* = 116*

4 0
3 years ago
Six friends share 4 apples equally. How much apples does each friend friend get?​
Zinaida [17]
Half and apple each

5 0
2 years ago
Read 2 more answers
A circle is centered at the point (5, -4) and passes through the point (-3, 2).
zepelin [54]

Answer:

(x-5)^2+(y+4)^2=100

Step-by-step explanation:

As we know the given points

Center = (5, -4)

and

Point on circle = (-3,2)

The distance between point on circle and center will give us the radius of circle

So,

The formula for distance is:

\sqrt{(x_{2}-x_{1} )^{2}+(y_{2}-y_{1})^{2}}\\Taking\ center\ as\ point\ 1\ and\ the\ other\ point\ as\ point\ 2\\d=\sqrt{(-3-5)^{2}+(2-(-4))^{2}}\\d=\sqrt{(-8)^{2}+(2+4)^{2}}\\d=\sqrt{(-8)^{2}+(6)^{2}}\\\\d=\sqrt{64+36}\\d=\sqrt{100} \\ d=10\\So\ the\ radius\ is\ 10

The standard form of equation of circle is:

(x-h)^{2}+(y-k)^{2}=r^{2}

where h and k are the coordinates of the center. So putting in the value:

(x-5)^{2}+(y-(-4))^{2}=(10)^{2}\\(x-5)^{2}+(y+4)^{2}=100

8 0
3 years ago
The mean of a normal probability distribution is 500 and the standard deviation is 10. about 95 percent of the observations lie
PIT_PIT [208]

Answer:

So about 95 percent of the observations lie between 480 and 520.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviations of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

The mean is 500 and the standard deviation is 10.

About 95 percent of the observations lie between what two values?

From the Empirical Rule, this is from 500 - 2*10 = 480 to 500 + 2*10 = 520.

So about 95 percent of the observations lie between 480 and 520.

5 0
3 years ago
Given that f(x) = 19x2 + 152, solve the equation f(x) = 0
telo118 [61]

<em><u>Option A</u></em>

<em><u>The solution is:</u></em>

x = \pm 2i \sqrt{2}

<em><u>Solution:</u></em>

f(x) = 19x^2+152

We have to solve the equation f(x) = 0

Let f(x) = 0

0=19x^2+152

Solve the above equation

19x^2 + 152 = 0

\mathrm{Subtract\:}152\mathrm{\:from\:both\:sides}\\\\19x^2+152-152=0-152\\\\Simplify\ the\ above\ equation\\\\19x^2 = -152\\\\\mathrm{Divide\:both\:sides\:by\:}19\\\\\frac{19x^2}{19} = \frac{-152}{19}\\\\x^2 = -8

Take square root on both sides

x =  \pm \sqrt{-8}\\\\x = \pm \sqrt{-1}\sqrt{8}\\\\\mathrm{Apply\:imaginary\:number\:rule}:\quad \sqrt{-1}=i\\\\x = \pm i\sqrt{8}\\\\x = \pm i \sqrt{2 \times 2 \times 2}\\\\x = \pm 2i\sqrt{2}

Thus the solution is found

5 0
2 years ago
Other questions:
  • A car rental company rents a car for $52 per day and $0.15 per mile .whats the rental fee for a car thats rented for 3 days and
    6·2 answers
  • A pole, 4m high, stands, vertically, on
    13·1 answer
  • Write the ratios for Sin A Cos A, and Tan A.
    9·2 answers
  • Fifteen is what percent of 1500​
    11·2 answers
  • Sorry hard to see but can you help me im stuck❤
    14·1 answer
  • Which fraction is equal to the decimal 0.125?<br> I need help now!!!!!!!
    6·1 answer
  • You and a friend are playing a game by tossing two coins. If both coins are heads or both are tails, you win. Otherwise, your fr
    15·1 answer
  • The radius of the base of a cylinder is increasing at a rate of 11 meter per hour and the height of the cylinder is decreasing a
    9·1 answer
  • Please answer number 4 please!
    6·2 answers
  • Is 3n a cubic a quadratic a linear or none of these​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!