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ss7ja [257]
3 years ago
15

Every day Abby's teacher picks a number of the day from 1 to 20. The number of the day can be repeated. There are 180 days in th

e school year. Predict how many days the number of the day will be greater than 15.
Mathematics
1 answer:
Cloud [144]3 years ago
6 0
Well, greater than fifteen would mean there are 4 numbers, or 4/20 chance, knowing this, we can predict by dividing 180 by 4, which would equal 45 days in which the number of the day would be greater than 15
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mezya [45]
Wilda can do the job in 4 hours ... she does 1/4 (or 0.25) of it each hour.
Karla can do it in 5 hours ... she does 1/5 (or 0.2) of it each hour.

Wilda worked alone for 1 hour ... 0.25 of the job was done before her helper
arrived.  So only 0.75 of the job remained to be done together.

Working together, they accomplish (0.25 + 0.2) = 0.45 of the job in 1 hour.

How many times do they need to do  0.45  of the job in order to finish
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After Wilda worked alone for 1 hour and Karla came along to join her, it will
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8 0
3 years ago
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8 0
3 years ago
What is y=-x+6?........
SIZIF [17.4K]

Answer:

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I wasn't sure what you really were asking for, so I did slope, x, and y.

8 0
3 years ago
A biologist studied how cells grow by adding liquid protein to cell samples. She reported in her study that she divided 3/5 of a
r-ruslan [8.4K]

Answer: \dfrac{1}{5}\text{ of an ounce.}

Step-by-step explanation:

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She divided \dfrac{3}{5} of an ounce of liquid protein evenly among 3 cell samples.

Here , total quantity of liquid protein = \dfrac{3}{5} of an ounce

Total cell samples = 3

Now , Quantity of liquid protein given by her to each cell = (total quantity of liquid protein ) ÷ (3)

= \dfrac{3}{5}\times\dfrac{1}{3}=\dfrac{1}{5}\text{ of an ounce} .

Hence, Quantity of liquid protein given by her to each cell =  \dfrac{1}{5}\text{ of an ounce.}

4 0
3 years ago
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tresset_1 [31]

Answer:

Step-by-step explanation:

3 0
1 year ago
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