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
arlik [135]
2 years ago
10

Rachel bought a sheet of fifty 34-cent stamps from the post office. she paid for the stamps with a $20 bill. how much money shou

ld she get back?
Mathematics
1 answer:
posledela2 years ago
7 0
50 x 0.34 = 1.70
20 - 1.70 = 18.30
You might be interested in
If Raj randomly chooses a point in the square below, what is the probability that point is not in the circle? Assume that pi = 3
hodyreva [135]

Answer:

49.7%

Step-by-step explanation:

A cdircle is located within a square.

<u>Area of the circle</u>

Area = \pir^{2}, where r = 4 units.

Area Circle = 50.3 units^2

<u>Area of the square</u>

Area = l*w or l^2 for a square, since l = w

Area = (10 units)^2

Area = 100 units^2

<u>Area in the square but outside the circle</u>

This is the difference [Square minus Circle Areas]

Square minus Circle Areas = 100 - 50.3  or <u>49.7 units^2</u>

<u>Probability</u>

The probability of picking a point in the square that is not in the circle is the ration of the two areas:  <u>[Outside Circle/Square]x100%</u>

<u></u>

<u>(</u>49.7 units^2)/(100 units^2)x100% = 49.7%

<u></u>

6 0
2 years ago
PLEASE HELP ME!! 100 points
Yakvenalex [24]
Square root (8-0)^2 + (8+7)^2

square root 64+15^2

=8+15
= 23
8 0
3 years ago
Read 2 more answers
PLZ HELP! QUICK! WILL MARK BRAINLIEST!!! 20 POINTS!!! A portion of the Quadratic Formula proof is shown. Fill in the missing sta
lorasvet [3.4K]

Answer:

D.

Step-by-step explanation:

After the third step, take the square root of both sides.

Third Step:

(x+\frac{b}{2a})^2=\frac{b^2-4ac}{4a^2}

Thus, the fourth step is:

\sqrt{(x+\frac{b}{2a})^2}=\sqrt{ \frac{b^2-4ac}{4a^2}} }

The left side cancels:

(x+\frac{b}{2a})=\pm\sqrt{ \frac{b^2-4ac}{4a^2}} }

D.

3 0
3 years ago
A rectangular lot is 70 yards wide and 115 yards long.
forsale [732]

Answer: 165 in length 20 in width

Step-by-step explanation: :)

5 0
3 years ago
There are 600 performers in a dance recital. The ratio of men to women is 4:6. How many men performers were in the dance recital
posledela

Answer: 240 men

Step-by-step explanation:

From the question, we are informed that there were 600 performers in a dance recital and that the ratio of men to women is 4:6.

Fraction of men at the recital = 4/10

Fraction of women at the recital = 6/10

The number of men performers that were in the dance recital will be:

= 4/10 × 600

= 240 men

There were 240 men at the recital.

5 0
3 years ago
Other questions:
  • Line CD passes through points C(3, –5) and D(6, 0). What is the equation of line CD in standard form?
    13·2 answers
  • Solution to the compound inequality –6 ≤ 2 + 6 ≤ 6<br><br> -12≤x≤0<br> 6≤x≤6<br> -6≤x≤0<br> 0≤x≤6
    14·1 answer
  • I would like to know what ten pulse ten is?
    6·1 answer
  • What is an example for bad debt
    11·2 answers
  • What is the measure of angle D?​
    12·2 answers
  • (1, 4) and (6, -1) slope intercept form
    13·2 answers
  • I don’t know the answer please help me
    8·1 answer
  • Explain how to determine theoretical probability of an event.
    7·2 answers
  • Two opponents Playing chess start out with 32 pieces on the chess board . Each person loses an equal amount of pieces over 15 mi
    5·1 answer
  • Is x+4 a factor of P(x)=4x^2-4x+8?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!