All categories

3 years ago

Derrick has $1,000 in a savings account that ears

Mathematics

2 answers:

qaws [65]3 years ago

6 0

Answer: 1,347.35

just took it on a quizziz for class lol, btw there’s a website to calculate it :)

mario62 [17]3 years ago

6 0

Answer:

Step-by-step explanation:

You might be interested in

A recipe for a loaf of bread calls for 2/3 of a cup of flour. If Milo used 12 cups of flour, how many loaves of bread did he pre

Sloan [31]

Answer:

Step-by-step explanation:

12 * <u>2</u>

= <u>24</u>

= 8

Therefore the answer is E. 8

5 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

3 years ago

What do the numbers 0.5, 5,49, and 0.3 reapeating have in common?

stellarik [79]

Answer:

They are all odd numbers.

Step-by-step explanation:

Ok so we know that numbers that end with 1,3,5,7 and 9 are odd numbers and all the numbers listed in the question all end with these numbers.

8 0

3 years ago

use a mental math strategy to find 4,290+3,602. explain how to check your answer using a different strategy.

Marianna [84]

=7,892 , you could write out your numbers, then line them up to then add them.

5 0

3 years ago

At a pet store, there are 30 aquariums.

irakobra [83]

Answer:

f = (20 × 15) + (10 × 6)

Explanation:

You are just find how many fish are salt water and how many freshwater and adding them together. The total number of aquariums is irrelevant in this case.

8 0

3 years ago