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
14

:( I Need help! Show work please! Aviva has a total of 52 coins, all of which are either dimes or nickels. The total value of th

e coins is $4.70. Find the number of each type of coin.
Mathematics
1 answer:
Jet001 [13]3 years ago
5 0

Answer:

42 Dimes, 10 Nickels.

Step-by-step explanation:

Dimes are worth $0.10, nickels are worth $0.05.

If D = number of dimes, and N = number of nickels, then the following equations are true:

0.10D + 0.05N = 4.70

D + N = 52

Next, let's multiply the first equation by 10 so that we can subtract the second one from it.

D + 0.50N = 47

(-) D + N = 52

Subtracting the second equation from the first one gives:

-0.5N = -5

-0.5N/-0.5 = -5/-0.5

N = 10

Finally, substitute N in the original second equation to find D.

D + 10 = 52

D + 10 - 10 = 52 - 10

D = 42

You might be interested in
Bus A and Bus B leave the bus depot at 8 am.
LenaWriter [7]

Answer: 10:55

Step-by-step explanation:

Taking statement at face value and the simplest scenario that commencing from 08:00am the buses take a route from depot that returns bus A to depot at 25min intervals while Bus B returns at 35min intervals.

The time the buses will be back at the depot simultaneously will be when:

N(a) * 25mins = N(b) * 35mins

Therefore, when N(b) * 35 is divisible by 25 where N(a) and N(b) are integers.

Multiples of 25 (Bus A) = 25, 50, 75, 100, 125, 150, 175, 200 etc

Multiples of 35 (Bus B) = 35, 70, 105, 140, 175, 210, 245 etc

This shows that after 7 circuits by BUS A and 5 circuits by Bus B, there will be an equal number which is 175 minutes.

So both buses are next at Depot together after 175minutes (2hr 55min) on the clock that is

at 08:00 + 2:55 = 10:55

6 0
3 years ago
The ice cream man just ended his shift for the day. Let 1/2x^2 6/11x + 8 represent the amount of chocolate ice cream bars he sol
saveliy_v [14]

Answer:

A and D

Step-by-step explanation:

Total ice cream bars sold = sum of chocolate sold , vanilla and strawberry ice-creams sold.

=(1/2)x2 + (6/11)x + 8 + (5/9)x2 + (2/3) +(1/3)x2 + 4x +(4/3) (Given in the question)

=(25/18)x2 + (50/11)x + 10 (Adding terms corresponding to x2,x ,constant respectively)

Difference in chocolate and strawberry bars =[ (1/2)x2 + (6/11)x + 8] - [(1/3)x2 + 4x +(4/3)]

= (1/6)x2 - (38/11)x +(20/3)

So, the correct options are A and D

4 0
3 years ago
I NEED HELP SO BAD PLEASE!!!!!!!!!!!
inysia [295]

Answer:

I think its 6 :)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
HELP HELP QUICK WILL GET MARKED BRAINLIEST
Harlamova29_29 [7]
Wow the answer is b because you secelted it
8 0
3 years ago
2% of 250 this is worth probaly eleven points plz help me find the percent of the quantity ​
lapo4ka [179]

Answer:

= 5

Step-by-step explanation:

(2/100) × (250/1)

multiply the numerators

500/100

5/1

= 5

7 0
3 years ago
Other questions:
  • Determine the slope from the following two points:<br><br> (3,6) and (5, -2)
    12·1 answer
  • Adam buys a bigger turkey than he needs. The turkey he buys weighs 7 kg. Below are the cooking instructions for the turkey. Cook
    12·2 answers
  • 24 16/17 divided by 4 8/9
    5·1 answer
  • Is 1.32 a rational number​
    13·2 answers
  • What is the value of the expression 8(-6.3)
    15·2 answers
  • two percent of a product are defective. if a lot of 100 items are ordered what's the probability that there are no defective ite
    12·1 answer
  • Write a sentence/scenario that uses the integer -12 to represent a
    10·1 answer
  • Do both of them please
    7·1 answer
  • SECTION B: LOGARITHMS A Question Three: Solve the equation log₂ (4x² - 9).- log₂ (2x + 3) = 3. Hint: (4x² - 9) is a difference o
    10·2 answers
  • A formula is an equation stating that a single variable is equal to an expression. Distance traveled (<img src="https://tex.z-dn
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!