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Akimi4 [234]
2 years ago
15

#7 pls, i’m begging u :,)

Mathematics
1 answer:
777dan777 [17]2 years ago
6 0
B is the answer cudijfjdjsksks
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A group of college students is volunteering for Homes for the Community during their springbreak.They are putting the finishing
Inessa05 [86]
Okay, so the rate is 1 job / hours, so:
1/3 + 1/7 (This covers both their work rates) = 1/n (n represents the time it take for them to work together)
Get the LCD:
7/21+ 3/21 = 1/n
10/21 = 1/n
Cross multiply:
10n = 21
n = 2.1 
It will take them 2.1 hours, or 2 hours and 6 minutes
5 0
3 years ago
Can someone help me please, explain in your own words. I'll give brainliest to the best and correct answer. Thank you (:
Elanso [62]
A) To factor a quadratic equation, standard form is the better form to use because it is easier to pull out a common factor from. 

b) To graph a parabola, it is better to use vertex form so that you will know what point to graph as the vertex of the parabola. 

c) To identify the vertex, maximum and minimum, it is better to use vertex form because the vertex form will give the values of the coordinates for the vertex. Then, you can use the equation to find the mininmum or maximum. If the graph is negative, it will have a maximum because it points downward infinitely. If the equation is positive, the graph will have a minimum because the graph points upward infinitely.

d) Standard form is easier to use when trying to solve using the quadratic formula because  it is easier to see what the coeffiecnts and constants are to plug in for a b and c. 
6 0
3 years ago
HELP ASAP PLSSSSSSS
Xelga [282]

Answer:

<u>18.8%</u>

Step-by-step explanation:

For calculating this, focus on one part of the table :

  • The row where students do not like sandwiches

There are 32 students who do not like sandwiches, and 6 of them do not like pies. Take this a proportion :

  • P (does not like pies, do not like sandwiches) = 6/32
  • P = 3/16
  • P = <u>18.8%</u>
7 0
2 years ago
Read 2 more answers
If the Federal Reserve sells $60,000 in Treasury bonds to a bank at 6% interest, what is the immediate effect on the money suppl
Aleksandr [31]
<span>60,000 - 4% = ? Just do this and you will get your answer. </span>
3 0
3 years ago
Read 2 more answers
25 is 36% of what number
ch4aika [34]

Answer:

x = 69.44

Step-by-step explanation:

We have, 36% × x = 25

or, 36/100 × x = 25

Multiplying both sides by 100 and dividing both sides by 36,

we have x = 25 × 100/36

x = 69.44

If you are using a calculator, simply enter 25×100÷36, which will give you the answer.

4 0
1 year ago
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