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gavmur [86]
3 years ago
10

♫ I have a Brainliest♫ Math situation

Mathematics
1 answer:
wel3 years ago
5 0
<span>13 3/4 length board needed 44.4 hours Since you need 5 lengths of 2 Âľ feet boards, multiply 2 Âľ by 5, giving 5 * 2 3/4 = 5 * 11/4 = 55/4 = 13 3/4 So the answer is 13 3/4 although technically, you'll need a board that's longer since the kerf for a saw blade is greater than 0 ( a typical saw kerf is from 1/16" to 1/8" so in reality Philly and Boston will need a board about 1/2" longer than the minimum. For the second problem, subtract the start time from the end time for each days to figure out how many hours Allison worked each day. Then sum up the hours to get the total time Allison worked. For this problem, it's easier to convert AM/PM times to 24 hour time. Basically, keep the AM times the same and add 12 hours to the PM times. So 5:13 PM - 8:03 AM = 17:13 - 8:03 = 9:10 4:49 PM - 7:58 AM = 16:49 - 7:58 = 8:51 4:41 PM - 7:46 AM = 16:41 - 7:46 = 8:55 4:50 PM - 8:23 AM = 16:50 - 8:23 = 8:27 4:32 PM - 7:31 AM = 16:32 - 7:31 = 9:01 Now add up the hours and minutes: 9:10 + 8:51 + 8:55 + 8:27 + 9:01 = 42:144 Since you can't have 144 minutes, divide the minutes by 60 to get hours and add the whole hours to the hours and the remainder will be the minutes. 144 / 60 = 2, remainder 24 So your time worked becomes 44:24 which is 44 + 24/60 = 44.4 hours. Since 44.4 isn't one of the available answers to pick from, I'd recommend talking to your teacher about the error in the problem.</span>
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Can someone help me and do this for me were doing convert customary units if lenght
Mamont248 [21]

Well there are 5280 feet in 1 mile and if you multiply that by 2 then that's too many. if you multiply 5280 by 1.5, then you get 7920 so it is equal to 1.5 miles.

There are 36 inches in 1 yard so you multiply 6 by 36 to get 216.

Again there are 5,280 feet in 1 mile. Divide 26,400 by 5,280 and you get 50 miles.

12 inches in 1 foot. Multiply 12 by 9 and get 144.

22 feet equals 7 yards and 1 foot.

51 inches equals 4 feet and 3 inches. (4 feet equals 48 inches)

Btw, 7 yards is greater then 20 feet (7 yards equals 21 feet)

2 miles is more then 3,500 yards. (2 miles equals 2,520 yards)

11.5 feet is less then 4 yards (4 yards equals 12 feet)

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4 0
3 years ago
Read 2 more answers
Solve using elimination method
Anon25 [30]
X+y=8
2x^2-y=-5
elimination method means you link the 2 equations together to make one
these two already have y in the perfect form where you can cancel it out +y and -y so no need to perform any other action to a certain equation.. all you need to do is add them now
2x^2+x=3
7 0
3 years ago
3.If the ratio of lynx to mountain lions and wolverines in the park is 2:3:1.So for every 2 lynx, there are 3 mountain lions and
Zolol [24]
A.  The ratio of lynx to mountain lions to wolverines is 2:3:1.

Thus, there are 2 lynx in the ratio.  If there were 6 lynx, we would have to multiply all of the numbers in the ratio by 3 (because 6/2 = 3) to keep the ratio in the same proportion.  

Therefore, because there is 1 wolverine in the ratio, and 1 * 3 = 3, if there were 6 lynx, there would be 3 wolverines.

b. We can use the same ideas that we had in part a to help us in part b.
There are 3 mountain lions in the ratio, but there are 15 mountain lions in the problem.  Thus, the multiplier is 5, because 15/3=5.

Therefore, because there are 2 lynx in the ratio, and 2*5 = 10, if there were 15 mountain lions, there would be 10 lynx.

c.  There is one wolverine in the ratio, but there are 10 wolverines in the problem.  Thus, the multiplier is 10, because 10/1 = 10

Therefore, because there are 3 mountain lions in the ratio, and 3 * 10 = 30, if there were 10 wolverines in the park, then there would be 30 mountain lions.

d.  The total number of lynx, mountain lions, and wolverines is 30.
To find out how many of each animal there should be, we must make an equation using the ratio and the variable x. 

2x + 3x + 1x = 30

This equation means that the total number of animals together is 30, which is true.  Now let's simplify by combining like terms.

6x = 30

Finally, we can simplify by dividing both sides by the coefficient of x, or 6.

x = 5

Thus, going back to our original equation, we know that the amount of lynx is 2x, mountain lions is 3x, and wolverines is 1x.

Lynx = 2x = 2(5) = 10 lynx
Mountain Lion = 3x = 3(5) = 15 mountain lions
Wolverines = 1x = 1(5) = 5 wolverines

Hope this helps! :)

7 0
3 years ago
Someone pls pls pls help me
WINSTONCH [101]

Answer:

  A, C, D, E

Step-by-step explanation:

According to the rational root theorem, any rational roots will be of the form ...

  ±(divisor of the constant)/(divisor of the leading coefficient)

The constant is 8, and its divisors are 1, 2, 4, 8.

The leading coefficient is 6, and its divisors are 1, 2, 3, 6.

So, no rational root will have 3 in the numerator, eliminating choices B and F. The remaining choices are possible rational roots:

  • A, 2/3
  • C, -8
  • D, 4
  • E, -1/6
8 0
3 years ago
D(x+a)=c(x+b) make x the subject of the formula
kiruha [24]

Answer:

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mation ab

Step-by-step explanation:

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