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
Pavlova-9 [17]
3 years ago
7

Layla emptied out her change jar to buy a new binder for school. She found 147 coins consisting of dimes and nickels that totale

d $11.65. Write a system of equations that could be used to determine how many dimes, d, and how many nickels, n, Layla had in her change jar.
Mathematics
1 answer:
den301095 [7]3 years ago
6 0

Answer:

d + n = 147

0.10d + 0.05n = 11.65

d = 86, n = 61

Step-by-step explanation:

Let

Number of dimes = d

Number of nickels = n

Total coins = 147

Total value = $11.65

d + n = 147 (1)

0.10d + 0.05n = 11.65 (2)

From (1)

d = 147 - n

Substitute d = 147 - n into

0.10d + 0.05n = 11.65

0.10(147 - n) + 0.05n = 11.65

14.7 - 0.10n + 0.05n = 11.65

- 0.10n + 0.05n = 11.65 - 14.7

-0.05n = -3.05

n = -3.05 / -0.05

= 61

n = 61

Substitute n = 61 into

d + n = 147

d + 61 = 147

d = 147 - 61

d = 86

You might be interested in
Approximately how many times greater is 4×107 than 8×103 ?
guajiro [1.7K]
The answer is C. 5000
4 0
3 years ago
Read 2 more answers
(HELP ASAP!!) An exterior angle of a triangle is 152°. If the non-adjacent angles are congruent, then what are the measures of a
tresset_1 [31]

Answer:

  c) 28°, 76°, 76°

Step-by-step explanation:

The two remote interior angles sum to 152°. Since they are congruent, their measures are 152°/2 = 76°. The adjacent interior angle is the supplement of 152°, so is 180°-152° = 28°.

The interior angles are 28°, 76°, 76°.  . . . .  matches choice C

4 0
3 years ago
What is the correct factorization of x^6-y^6
Soloha48 [4]
(x^3 - y^3)(x^3 + y^3)

You can get this by factoring based on the a^2 - b^2 model 
3 0
3 years ago
What is the area, height, and base of this triangle?
Minchanka [31]
This should be your answer

7 0
3 years ago
PLS HELP ME I ADDED MORE POINTS
ZanzabumX [31]

Answer: D. (-6,2)

Step-by-step explanation:

y = x + 8  

2x + y = -10

v

2x + x +8 = -10

x = -6

y = -6 + 8     ( plug in x (-6) )

y = 2

( x, y) = ( -6, 2)

4 0
3 years ago
Other questions:
  • A number t divided by 3
    10·1 answer
  • I kneed to know what 2/3 - 9/10 is so i can do the rest of my homework
    13·1 answer
  • What is the product of (2+7i)(2-7i) in the from a+bi
    13·2 answers
  • The area of the entire figure is 1 square unit
    13·1 answer
  • Find the slope of the line through the given points.<br> (-3,1), (-1,5)
    10·1 answer
  • Fill in the table using this function rule y = 4x + 3
    10·2 answers
  • Correct one gets Brainly :D (pls help)
    5·2 answers
  • S) Find 2 rational numbers between these two fractions <br><br> 1413/5689<br> 1838/7370
    11·1 answer
  • Evaluate 4a for a = 5 . Express your answer in simplest form.<br> 20<br> 22<br> 45<br> 20
    10·2 answers
  • Ian Zander earns extra money by refinishing wood floors. His charge is based on the size and condition of the floor. Last month,
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!