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ArbitrLikvidat [17]
2 years ago
12

On Monday, mark ran 1 1/3 miles to school and then 2 1/5 miles to his grandmother’s house after school. On Tuesday, he ran twice

as much as the previous day. How far did mark run on Tuesday?
Mathematics
2 answers:
Margarita [4]2 years ago
7 0

7Answer: 7 1/15 miles ran on Tuesday

Step-by-step explanation:

Allisa [31]2 years ago
5 0
Ok but I’m trying to figure out how to do it for a while I
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I’m I right? If not change it for me
dangina [55]

The first and third are correct. They are equal.

The second is incorrect. This is because 1800 meters = 1.8 km (not 18 km). The answer you should have is a "less than sign" because 1.8 km is smaller than 18 km.

To go from meters to kilometers, you move the decimal point 3 spots to the left. This is the same as dividing by 1000.

To go from kilometers to meters, you move the decimal point 3 spots to the right. This is the same as multiplying by 1000.

8 0
3 years ago
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Can you help me find all the seventh roots of unity? what do they look like graphed?
alex41 [277]

Answer:

There are seven seventh roots of unity, e2πki7 , all on the unit circle, r=1 above.

The first one is at θ=2π7=360∘7=5137 ∘ , and there are others at 4π7,6π7,8π7,10π7,12π7 and of course at 0 radians, i.e. unity itself.

How to find?

There are 4 fourth roots of unity and they are 1, i,−1 and−i

Each of the roots of unity can be found by changing the value of k k k in the expression e 2 k π i / n e^{2k\pi i/n} e2kπi/n. By Euler's formula, e 2 π i = cos ⁡ ( 2 π ) + i sin ⁡ ( 2 π ) = 1.

8 0
3 years ago
How is solving −5x = −6.5 different from solving − 1 5 x = −6.5? How are the solutions related? Complete the explanation.
Alexxandr [17]

Answer:

Step-by-step explanation:

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3 0
3 years ago
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If the scale on a map is inches/feet =2/10, how would the following lengths be represented?
Alex787 [66]
The answer is B 30 feet
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3 years ago
Answer Both Questions
labwork [276]

Answer:is the first answer 15.875 and the second answer 17 x 28 ÷5

Step-by-step explanation:

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