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
Oxana [17]
3 years ago
9

Stephanie had a total of 80 pieces of $ 2 and $ 10 notes. After spending 2/5 of her $ 2 notes and 8 pieces of her $ 10 notes, sh

e had an equal number of $ 2 and $ 10 notes left. How much money did Stephanie have at first?
Mathematics
1 answer:
Ghella [55]3 years ago
3 0

Answer:

$440

Step-by-step explanation:

notes $2 - n

notes $10 - m

n + m = 80 ----------> m = 80 - n

1 - 2/5 = 3/5

\frac{3}{5} * n = m - 8

\frac{3}{5} * n = 80 - n - 8 \\\\\frac{3}{5} * n + n = 72\\\\\frac{8}{5} * n = 72\\n = 45 \\m = 35\\

45 * $2 + 35 * $10 = 90 + 350 = $440

You might be interested in
Sum of exterior angles in a equilateral triangle
poizon [28]

Answer:

In the case of the equilateral triangle, , the exterior angle, plus 60 equals 180. Subtracting 60 from both sides of this equation gives us a value of equal to 120. This means that the exterior angle of an equilateral triangle is equal to 120 degrees. The sum of all the exterior angles is always 360 degrees.

Step-by-step explanation:

8 0
3 years ago
Help me ASAP! Will give brainliest to whoever answers these correctly.​
hammer [34]
#9. There are 180 degrees in a triangle. We already know two of the sides which added together make 112. Then we do, 180-112=68

#10. We do the same process. 90 + 60 = 150
150-180= 30

#11. To find whether or not any three numbers can make a triangle, two of the numbers must equal more than the remaining number. But this has to be the case for any combination. 6+7=13. 13 is larger than 11. So yes it can.

#12. 8+2=10 which may be bigger than 6 but, 6+2=8. Which is equal to 8. So no, it cannot make a triangle.

I’m still working out the first question
5 0
2 years ago
Given right triangle ABCABC with altitude \overline{BD}
Alex

Answer:

x = 2\sqrt{11}

Step-by-step explanation:

AD = 4

AC = 11

DC = 11 - 4 = 7

First, find BD using the right triangle altitude theorem:

BD = \sqrt{AD*DC}

Plug in the values

BD = \sqrt{4*7}

BD = 2\sqrt{7}

Use pythagorean theorem to find x:

x² = AD² + BD²

Plug in the values

x^2 = 4^2 + (2\sqrt{7})^2

x^2 = 4^2 + (2\sqrt{7})^2

x^2 = 16 + (4*7)

x^2 = 16 + 28

x^2 = 44

Take the square root of both sides

\sqrt{x^2} = \sqrt{44}

x = \sqrt{44}

x = \sqrt{4 * 11}

x = 2\sqrt{11}

6 0
3 years ago
Read 2 more answers
Please help I'm so depressed:(
Mashcka [7]

omi god..... I used http://convert-to.com/202/speed-units.html and got

1.64 maybe if u try it would be different idk

6 0
3 years ago
Hi i am having trouble with this question can some one help me on it i heard this app really helps you understand question i mig
Evgen [1.6K]

Answer:

n = -1

Step-by-step explanation:

Guess your question is to find n

Given:

-6 + 3n = -9

-6 + 3n = -9

Add 6 to both sides

-6 + 6 + 3n = -9 + 6

3n = -3

Divide both sides by 3

n = -3 / 3

= -1

n = -1

Check:

-6 + 3n = -9

-6 + 3(-1) = -9

-6 - 3 = -9

- 9 = - 9

6 0
3 years ago
Other questions:
  • What is the answer for -4-(7t-4)^2=-49
    9·1 answer
  • Frances drew ABC and DEF so that A D, AB = 4, DE = 8, AC = 6, and DF = 12. Are ABC and DEF similar? If so, identify the similari
    10·2 answers
  • SOMEONE PLEASE HELP. SHOW WORK
    9·1 answer
  • NEED HELP PLEASE AND THANK YOU
    6·1 answer
  • PLEASE HELP,!! HURRY!!!!! 40 points!!!
    6·1 answer
  • Which of the following best represent the graph of the inequality shown below?
    5·1 answer
  • Which input value produces the same output value for the two functions on the graph?
    13·1 answer
  • 34 + 4 ⋅ 5 = ____. (Input whole numbers only.)
    13·2 answers
  • A children's ride at an amusement park has a rule that a person must be shorter than 4 feet tall to ride it.
    8·1 answer
  • Simplify the following expression: 7(2x+ 6y)​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!