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
xenn [34]
3 years ago
15

Mildred bought 2-cent stamps, 4-cent stamps, and 5-cent stamps for $4.35. The number of 2-cent stamps exceeded the number of 5 c

ent stamps by 50. The number of 4-cent stamps was 10 less than twice the number of 5-cent stamps. How many of each kind did she buy?
Mathematics
1 answer:
vfiekz [6]3 years ago
8 0

5 cent = 0.05x

<span><span>2 cent  </span>= 0.02(x+50)</span>

4 cent = 0.04(2x-10)

 

0.05x + 0.02(x+50) + 0.04(2x-10)

0.05x + 0.02x +1 + 0.08x -0.4 = 4.35

0.15x +0.6 = 4.35

0.15x = 3.75

X = 3.75 / 0.15 = 25

<span> 25 5 cent stamps ( 25*0.05 = 1.25)</span>

25+50 = 75 2 cent stamps ( 75*0.02 = 1.50)

2*25 =50-10 = 40 4 cent stamps ( 40*0.04 =1.60)

 

1.25 + 1.50 +1.60 = 4.35

5 cent = 25

2 cent = 75

4 cent = 40


You might be interested in
Rewrite the conditional statement in if-then form. Today is Friday, and tomorrow is the weekend
sladkih [1.3K]

If today is Friday, then tommorow is the weekend

8 0
3 years ago
.. Carmen bakes and sells pies. She sells each pie for $12.99. The ingredients for 1 apple
Rainbow [258]

Answer:   $21.20

Step-by-step explanation:

first, find the profit carmen makes on each pie

12.99 - 8.75 = 4.24

now, we multiply that by the 5 pies that she sold to see what profit she made

4.24 x 5 = 21.2

$21.20

4 0
3 years ago
Find the area of the shaded segment of the circle.
vredina [299]

Answer:

Around 5.5 square meters

Step-by-step explanation:

You can start by finding the area of the segment. Since the rest of the circle that is not in the segment is 240 degrees, the segment is 120 degrees or a third of the circle. You can therefore find the area of that segment with the formula \frac{1}{3} \pi r^2 =3\pi square meters. Now, you need to find the area of the triangle inside the sector. This is more difficult than last time, because it is not a 90 degree angle. However, you can solve this by dividing this triangle into two 30-60-90 triangles, which you know how to find the ratio of sides for. In a 30-60-90 triangle, the hypotenuse is twice the length of the smallest leg, and the larger leg is \sqrt{3} times larger than the smaller leg. In this case, these dimensions are a base of \frac{3}{2} for the smaller leg and \frac{3\sqrt{3}}{2} for the larger leg, or the base. Using the triangle area formula and multiplying by 2 (because remember, we divided the big triangle in half), you get \frac{9\sqrt{3}}{4} square meters. Subtracting this from the area of the segment, you get about 5.5 square meters. Hope this helps!

5 0
3 years ago
Brainiest <br><br><br>I Am Struggling With Two Questions :?<br> This is one of the two
Eddi Din [679]

Answer:

Sine of an angle =

opposite / hypotenuse

I this figure

AB is the opposite which is 12

BC is the hypotenuse which is 13

sine ∅ = 12/13

Therefore the sine ratio of the angle is

12/13

Hope this helps

7 0
3 years ago
A student wishes to compare the cost of textbooks from two sellers. The same forty textbooks are priced at both seller A and sel
MrRissso [65]
Would it like.. not be C?? Im guessing its C (:
6 0
3 years ago
Other questions:
  • Help my sister step by step show work so she can understand because I forgot how to do this stuff
    10·1 answer
  • Multiply.<br><br> (5x2 – 3x)(8x2 + 4x)
    7·1 answer
  • f 500 sessions that occurred on a website during a one-week period, 200 of them started on the homepage; 100 of these 200 sessio
    15·1 answer
  • I was told that if I had perfect attendance, I would get an extra 4% in my check as a bonus. Therefore, if I earned $960.00 befo
    15·1 answer
  • What would be an example of an infinite set
    8·1 answer
  • Can someone explain the steps to this ? :)
    15·1 answer
  • Complement of 63 degrees?
    5·1 answer
  • Which division is shown by the model?
    9·1 answer
  • Which model represents 3x+26=2(3+2x)
    5·1 answer
  • Let C be between point D and E.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!