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Nonamiya [84]
1 year ago
9

Marika is training for a track race. she starts by sprinting 100 yards. she

Mathematics
1 answer:
lesya [120]1 year ago
6 0
I think is d 221 yeards
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Help me with this please
Gala2k [10]

Answer: the answer is  -5

Step-by-step explanation:

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6 0
2 years ago
An experienced carpenter can frame a house twice as fast as an apprentice. Working together, it takes the carpenters 2 days. How
AleksAgata [21]

Answer:

<em>6 days</em>

<em></em>

Step-by-step explanation:

Let the time taken by Carpenter working alone = C days

Then time taken by apprentice alone = Twice as that of taken by Carpenter = 2C days

Time taken working together = 2 days

Work done in one day working together = \frac{1}{2}

Work done in one day by Carpenter working alone = \frac{1}{C}

Work done in one day by apprentice working alone = \frac{1}{2C}

Work done in one day by Carpenter working alone + Work done in one day by Carpenter working alone =  \frac{1}{C}+\frac{1}{2C} = Work done in one day working together = \frac{1}{2}

\dfrac{1}{C}+\dfrac{1}{2C}=\dfrac{1}{2}\\\Rightarrow \dfrac{2+1}{2C}=\dfrac{1}{2}\\\Rightarrow C = 3\ days

Time taken by Carpenter alone to complete the work = 3 days

Time taken by Apprentice alone to complete the work = 3 \times 2= <em>6 days</em>

4 0
3 years ago
Steven likes to skip rocks on the lake. If he skips 2 rocks 5 times, 4 rocks 3 times, and 6 rocks 2 times, how many skips does h
natulia [17]
He skips 48 times and 10 times
7 0
3 years ago
Read 2 more answers
Grace swam a mile in 21 minutes. Jill swam a mile in 19.47 minutes. How
kirill115 [55]

Answer:

1.53

Step-by-step explanation:

because 21 minus 19.47= 1.53

7 0
3 years ago
Read 2 more answers
Simplify ((–3)2)3. Question 4 options: A) (–3)5 B) (–3)3/2 C) (–3)6 D) (–3)2/3
Alenkasestr [34]
I believe it is C if that is (-3)^6
4 0
3 years ago
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