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
antoniya [11.8K]
3 years ago
11

What the heck guys please help me

Mathematics
1 answer:
RSB [31]3 years ago
4 0

Answer:

10, 12, 13, 20

Step-by-step explanation:

You might be interested in
Pls help me with this 12 and below please ASAP SHOW WORK AND EXPLAIN
murzikaleks [220]
Lucy packs plates faster she packs 5 plates every minute. Mike packs 4 plates every minute because 3/4 of an hour is 45 minutes, then you divide 180 by 45 and the answer is 4 per minute. 
Franco would have to pack 90 plates every 20 minutes (1/3 of an hour) for his rate to be between Lucy's and Mike's. Lucy's rate is at 100 plates per 20 minutes because she can pack 5 plates every minute. Mike's it's at 80 plates per 20 minutes because he can pack 4 plates per minute. So that means that For Franco to be in the middle he has to pack 90 Plates every 20 minutes. 
Hope this helps!!!

4 0
3 years ago
Read 2 more answers
An object is moving at a speed of 850 miles per hour. Express this speed in meters per minute.
MAVERICK [17]

Answer:

it would be 1385

Step-by-step explanation: because 850 miles per hour converted into meter per min would be 22799.04 meters per sec and then u would Find the number in the whole number place 4 and look one place to the right for the rounding digit on the right side of the decimal point 7. Round up if this number is greater than or equal to 5 and round down if it is less than 5

So the answer is 1385

8 0
3 years ago
Read 2 more answers
We measure the diameters for a random sample of 25 oak trees in a neighbourhood. Diameters of oak trees in the neighbourhood fol
jarptica [38.1K]

Answer:

The required confidence inteval = 94.9%.

Step-by-step explanation:

Confidence interval: Mean ± Margin of error

Given: A confidence interval for the true mean diameter of all oak trees in the neighbourhood is calculated to be (36.191, 42.969).

i.e.  Mean + Margin of error = 42.969               (i)

Mean - Margin of error = 36.191                    (ii)

Adding (i) and (ii), we get

2Mean =79.16\\\\\Rightarrow\ Mean= 39.58

Margin of error = 42.969-39.58             [from (i)]

= 3.389

Margin of error = t^* \dfrac{\sigma}{\sqrt{n}}

here n= 25 , \ \sigma=8.25

i.e.

3.389=t^*\dfrac{8.25}{5}\\\\\Rightarrow\ t^* = \dfrac{3.389}{1.65}\\\\\Rightarrow\ t^* =2.0539 \

Using  excel function 1-TDIST.2T(2.054,24)

The required confidence inteval = 94.9%.

7 0
3 years ago
Make X the subject of the formula<br><br><br>will mark brainliest!!​
irga5000 [103]

Answer:

y =  \frac{x + 2}{x - 4}  \\ xy - 4y = x + 2 \\ xy - x = 4y + 2 \\ x(y - 1) = 4y + 2 \\ x =  \frac{4y + 2}{y - 1}  \\  \boxed{x =  \frac{2(2y + 1)}{y - 1} }

hope this helps.

3 0
3 years ago
Idk how to do this 4x+y=1
ivolga24 [154]
4x+y=1
4x+y-1=1-1
4x+y-1=0
6 0
3 years ago
Other questions:
  • Which of the following numbers is prime?
    5·2 answers
  • 76X3 WHAT IS IT IM LAZY RN LOL
    5·2 answers
  • (-25+ 4 to the second power) x 7
    15·2 answers
  • Which graph shows the new position of the rectangle after a translation?
    6·1 answer
  • 50 POINTS PLZ HELP NO LINKS This renewable energy project promises to provide numerous benefits to our state. These include an i
    15·1 answer
  • Miss Penny inherits £1040
    12·1 answer
  • I really need help,please!!
    9·1 answer
  • How much money have you paid to the loan company so far
    12·1 answer
  • Please help me with this I would give you 50 points.
    7·2 answers
  • Last month McKinneys Apothecary dispense the following liquid medication 1 gallon 3 quarts 7 pints and 3 dozens 6ounces of bottl
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!