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morpeh [17]
3 years ago
13

Somebody help me plz

Mathematics
1 answer:
Len [333]3 years ago
3 0
You want to combine both equations so it would be the first option.
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A rectangular room measures 224 square feet. One side of the room is 14 feet long. What is the perimeter of the room?
rusak2 [61]

Answer: The perimeter is 60 feet

Step-by-step explanation:

224/14=16

16+14+16+14=60 feet

The perimeter is 60 feet

3 0
2 years ago
2 factors that add to 6 but multiply to 60
hodyreva [135]

Answer:

The short answer is there isn’t.

Start by writing each of these as an expression:

x * y = 60

x + y = 7

Next, solve each for the same variable; in this case, y:

(x * y) / x = 60 / x

.: y = 60 / x

(x + y) - x = 7 - x

.: y = 7 - x

Next, replace y of the second expression to the first

y = 60 / x & y = 7 - x

.: 7 - x = 60 / x

Now, solve for x:

(7 - x) * x = (60 / x) * x

.: x * 7 - x^2 = 60

This is quadratic, so write it in the form of ax2 + bx + x = 0

(-1)x^2 + (7)x + (-60) = 0

.: a = -1, b = 7, c = -60

Finally solve for b:

x = (-b +- sqrt(b^2 - 4*a*c)) / 2a

.: x = (-7 +- sqrt(7^2 - 4*-1*-60)) / (2 * -1)

.: x = (-7 +- sqrt(49 - 240)) / -2

.: x = (-7 +- sqrt(-191)) / -2

The square root of a negative value is imaginary and thus there’s no real answer to this problem.

8 0
2 years ago
Thomas wants to invite Madeline to a party. He has an 80% chance of bumping into her at school. Otherwise, he’ll call her on the
Alexandra [31]

Answer:

84%

Step-by-step explanation:

The probability of Thomas bumping into her at school is 80%, so the probability of not bumping into her is 100% - 80% = 20%.

If he doesn't bump into her (20% chance), he will call her, and the probability of asking her in this case is 60%, so the final probability of asking her in this case is:

P_1 = 20\% * 60\% = 12\%

If he bumps into her (80% chance), the probability of asking her is 90%, so the final probability of asking her in this case is:

P_2 = 80\% * 90\% = 72\%

To find the probability of Thomas inviting Madeline to the party, we just have to sum the probabilities we found above:

P = P_1 + P_2

P = 12\% + 72\% = 84\%

5 0
3 years ago
If you were to spin a spinner at right what would be the probability of landing on green or purple
AURORKA [14]

depending on how many green and purple there are, lets say 4, and there are 10 other colors, it would be 4/10 so its 40%

5 0
2 years ago
What is the answer here?
Angelina_Jolie [31]

Step-by-step explanation:

(4,-30) i am not 100% sure about it.

3 0
2 years ago
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