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
Schach [20]
3 years ago
8

Can some one please explain this? Thank you all!

Mathematics
1 answer:
IRINA_888 [86]3 years ago
8 0
Basically bill wrote or chose a number. That number that he chose needed to have 2 things.

1. It needed to have been a number in between 27 and 45

2. It needed to have been an odd number in between 27 and 45.

There are only 2 possible choices that are odd, so eliminate the other 2 that are even. Next look at the 2 numbers that are odd.

The digits for each number must add up to 8.

35 - 3 + 5 = 8
43 - 4 + 3 = 7.

Which number adds up to 8. The digits in 35 or 43? It is 35.

Thus the final solution is 35. The number that Bill wrote.
You might be interested in
a group of astronauts launched a model rocket from a platform. Its flight path is modeled by h= -4t^2+24t+13 where h is the heig
Eddi Din [679]

Answer:

6.5 seconds

Step-by-step explanation:

Keep in mind that when h=0, this is the same height for both when the model rocket takes off and lands, so when the rocket lands, time is positive. Thus:

h=-4t^2+24t+13\\\\0=-4t^2+24t+13\\\\t=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\ \\t=\frac{-24\pm\sqrt{24^2-4(-4)(13)}}{2(-4)}\\ \\t=\frac{-24\pm\sqrt{576+208}}{-8}\\\\t=\frac{-24\pm\sqrt{576+208}}{-8}\\\\t=\frac{-24\pm\sqrt{784}}{-8}\\\\t=\frac{-24\pm28}{-8}\\\\t=\frac{-24-28}{-8}\\ \\t=\frac{-52}{-8}\\ \\t=\frac{52}{8}\\\\t=6.5

So, the amount of seconds that the model rocket stayed above the ground since it left the platform is 6.5 seconds

5 0
2 years ago
Read 2 more answers
A certain bean plant grows 15% of its height each day today after 10 days the bean plant is 27 inches tall how tall was it yeste
frez [133]
Given:
15% of its height each day
27 inches on day 10.

How tall was it yesterday?

27 represents 115% of the height yesterday. So we divided 27 by 115% to get yesterdays height.

27 ÷ 115% = 23.48 inches.

The plant was 23.48 inches tall yesterday.

To check:
23.48 x 15% = 3.52 inches
23.48 + 3.52 = 27 inches

3 0
3 years ago
14 = 31.7 – 3x What is the solution
netineya [11]
14 = 31.7 - 3x
-17.7 = -3x
x = 5.9


4 0
3 years ago
Read 2 more answers
A particle travels20m in 4 seconds.what is its speed?​
padilas [110]
5m/s

Divide it by the unit. It’s basic simply if
5 0
3 years ago
Ms. Scarlet is roasting 4 chickens . Each chicken needs 1/2 cups of butter one stick of butter is one cup how many sticks of but
belka [17]

Answer:

2 sticks

Step-by-step explanation:

4 chickens times 1/2 cups each

will give you  4/2

4/2 is 2

hence, the answer

8 0
3 years ago
Read 2 more answers
Other questions:
  • How much money will you have if you started with $45 and put it in an account that earned 10% every year for 20 years
    9·1 answer
  • The position of a particle s(t)= 3sin1/2t+1. So what is the average velocity of the particle for [0,3pi/2]?
    14·1 answer
  • What is 434 miles in 7 hours as a rate
    8·2 answers
  • What is the missing number?
    13·2 answers
  • A builder is trying to level out some ground with a front-end loader. He picks up some excess dirt at (9, 16) and then maneuvers
    7·1 answer
  • A lemonade recipe calls for 6 gallons of water how many quarts of water are needed for the recipe
    9·2 answers
  • A car moving at a constant speed passed a timing device at t = 0. After 8 seconds, the car has
    7·1 answer
  • Solve the proportion 2/7= x/28​
    7·2 answers
  • Can someone help me
    5·1 answer
  • Yes I wanted to know what is the answer ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!