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
sattari [20]
3 years ago
13

Ms. Lynch has 21 coins in nickels and dimes. Their total value is $1. 65. How many of each coin does she have? Please answer!!

Mathematics
2 answers:
jenyasd209 [6]3 years ago
5 0

Hi!

Ms. Lynch has 21 coins in nickels and dimes. Their total value is $1. 65. How many of each coin does she have?

12 x 0.1 = 1.2

9 x 0.05 = 0.45

1.2 + 0.45 = $1.65

Answer:

She has 12 Dimes and 9 Nickels!

timama [110]3 years ago
3 0

Hi, there

<u>Question:Ms. Lynch has 21 coins in nickels and dimes. Their total value is $1. 65. How many of each coin does she have?</u>

Explanation:

1.65 x 21

Answer 34.65

You might be interested in
Percent equations the question is blank % of 75 = 30
lubasha [3.4K]

Answer:

40

Step-by-step explanation:

30/75 = .4

4 0
3 years ago
Read 2 more answers
How would I solve; A bakery has 456 dozen cookies. How many individual cookies are there ?
Over [174]

Hi :")

Answer:

5472

Step-by-step explanation:

a dozen = 12 identical bodies

456 dozen cookies there are

12 x 456 = 5472

Good Luck ;)

#Turkey

6 0
3 years ago
Read 2 more answers
Which statement is true about the speeds of the two cars
galben [10]
What two cars, I don’t see anything
6 0
3 years ago
Use the exponential decay​ model, Upper A equals Upper A 0 e Superscript kt​, to solve the following. The​ half-life of a certai
Akimi4 [234]

Answer:

It will take 7 years ( approx )

Step-by-step explanation:

Given equation that shows the amount of the substance after t years,

A=A_0 e^{kt}

Where,

A_0 = Initial amount of the substance,

If the half life of the substance is 19 years,

Then if t = 19, amount of the substance = \frac{A_0}{2},

i.e.

\frac{A_0}{2}=A_0 e^{19k}

\frac{1}{2} = e^{19k}

0.5 = e^{19k}

Taking ln both sides,

\ln(0.5) = \ln(e^{19k})

\ln(0.5) = 19k

\implies k = \frac{\ln(0.5)}{19}\approx -0.03648

Now, if the substance to decay to 78​% of its original​ amount,

Then A=78\% \text{ of }A_0 =\frac{78A_0}{100}=0.78 A_0

0.78 A_0=A_0 e^{-0.03648t}

0.78 = e^{-0.03648t}

Again taking ln both sides,

\ln(0.78) = -0.03648t

-0.24846=-0.03648t

\implies t = \frac{0.24846}{0.03648}=6.81085\approx 7

Hence, approximately the substance would be 78% of its initial value after 7 years.

5 0
2 years ago
The functions f(x) and g(x) in the graph below are most likely which two equations?
gtnhenbr [62]

Answer:

It's C.

Step-by-step explanation:

The red curve  pass through the point (0, 1) and also y = 2 when x = 1 ,  so this is y = 2^x. The inverse is the reflection of  f(x) in x = y so the blue curve is y = log2 x.

6 0
3 years ago
Other questions:
  • Write 54.9 % as a decimal
    9·2 answers
  • Factor k 2 + 8k + 15. (k + 1)(k + 15) (k + 8)(k + 7) (k + 3)(k + 5)
    5·1 answer
  • one linear expression is subtracted from a second linear expression and the difference is x-5. When is the difference when the s
    10·1 answer
  • PLEASE HELP ME WITH THIS QUESTION!
    11·2 answers
  • An item is priced at $80. It is on sale for 20% off the regular price. What is the sale price?
    11·1 answer
  • 40% of = 8 please help
    13·2 answers
  • Please tell me answer ​
    11·1 answer
  • -3=-7+t//////////////////
    9·1 answer
  • I need help with this
    12·1 answer
  • Carolyn and Joyce ordered a large pizza that had 12 slices. Carolyn ate 1
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!