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galben [10]
3 years ago
6

Elli has some money

Mathematics
1 answer:
STALIN [3.7K]3 years ago
4 0
15$ I believe, as we can disregard the two original books (they have been payed for) leaving her to buy 1 book and having seven dollars, however if she needs $8 more you simply need to add 8+7.
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a sign in front of a roller coaster say '' you must be 40 inches tall to ride" what percentage of 54 inches of this is?
cupoosta [38]
The 54 percentage of 40 inches is 21.6 inches
5 0
3 years ago
What fraction is exactly halfway between 4/5 and 14/15? Give your answer in its<br> simplest form.
Wewaii [24]

Answer:

4/5+14%15

4×3/5+14×1/15

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26/15

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5 0
3 years ago
(3a +7)² – 5a(a-4) ..... Help​
sattari [20]

Answer:

4a²+62a+49

Step-by-step explanation:

since (a+b)^2= a^2+2ab+b^2

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9a²+42a+49-5a²+20a

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5 0
3 years ago
The North Colony Trail at Royal Gorge, Colorado, is 18 miles long. Stacey has hiked eight miles to a resting spot. She hikes the
Kruka [31]

Answer:

4 h

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\text{Time required} = \text{8 mi} \times \dfrac{\text{1 h}}{\text{2 mi}} = \textbf{4h}

It may be easier to do this calculation on a number line. Each jump of 2 mi represents 1 h, and there are four jumps, so they took four hours.

7 0
3 years ago
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galben [10]
P(B|A) = P(B)/P(A) = 0.11/0.7 = =.157
3 0
4 years ago
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