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fredd [130]
3 years ago
15

Please please HELP me! this is due tonight

Mathematics
1 answer:
Andrei [34K]3 years ago
8 0

Answer:

4

Step-by-step explanation:

the perimeter is the the total length of the shape. we already know that the two sides is 8, and 3 cm. we also know that the perimeter is 15cm. 8+3 is 11 so we need to figure out the remaining length of the side. 15-11 is 4 so the missing length, c, is 4 cm.

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Luis hizo un viaje en el coche en el cual consumio 20 l de gasolina. el trayecto lo hizo en dos etapas en la primera consumio 2/
algol13

Answer: 24\ liters

Step-by-step explanation:

Let be "x" the amount of gasoline in liters that the car's tank had at the beginning of the trip.

 1. In the first part of the trip the amount of gasoline the car used can be expressed as:

 \frac{2}{3}x

2. After the first part of the trip, the remaining was:

x-\frac{2}{3}x=\frac{1}{3}x  

3. In the second part of the trip the car used \frac{1}{2} of the remaining. This is:

(\frac{1}{3}x)(\frac{1}{2})=\frac{1}{6}x

4. The total amount ot gasoline used in this trip was 20 liters.

5. Then, with this information, you can write the following equation:

\frac{2}{3}x+\frac{1}{6}x=20

6. Finally, you must solve for "x" in order to find its value. This is:

\frac{2}{3}x+\frac{1}{6}x=20\\\\\frac{5}{6}x=20\\\\5x=120\\\\x=24

3 0
3 years ago
What is the balance as a result if having a credit of $84 and a debit of $29
cricket20 [7]
This is a basic subtracting problem.

$84.00 minus $29.00
Debit means it's been taken out of the bank account, so subtracted.
After subtracting the balance will be $55.00.
You can double check your work by adding 55 + 29 = 84.
7 0
4 years ago
Solve the inequality x +8 > 3
kodGreya [7K]

Answer:-5

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Can someone please help me
slega [8]
I solved the iniquity for x, and your solution should be x < 2! Sorry if its not
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DiKsa [7]

Answer:

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Step-by-step explanation:

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