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Rzqust [24]
3 years ago
13

The time it takes to fly from Los Angeles to New York varies inversely as the speed of the plane. If

Mathematics
1 answer:
makvit [3.9K]3 years ago
3 0

Answer: speed is  540 km/h

Step-by-step explanation:   Lets mark speed as v.

Because distenace is same, you can mark   6 h · 900 km/h = 10 h · v

and v = 5400 km / 10 h = 540 km/h.

Or using inverse proportions :   10 h / 6 h  =  v / 900 km/h  .

Before multiplying you turn lastproportion around :

10 h / 6 h = 600 km/ h / v   ,which gives   10 v = 6 · 900 km/h

and result is same

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the thickness of a cd is about 1/20 inch. if carrie has a stack of 52 cds,what is the height of the stack
SVETLANKA909090 [29]
The answer would be 26 because you're multiplying .5 times 52
7 0
3 years ago
The Rusty Metal Roller Coaster at the fair charges $2.50 for children and $4 for adults. Before the safety inspector shuts down
sergij07 [2.7K]

Answer:

B, 110

Step-by-step explanation:

Work Backwards!

1.- 260 - 110 = 150 children

2.- 150 X $2.50 (rate of children) = $375

3.- $815 - $375 = $440

4.- $440/$4 (rate of adults) = 110 Adults

7 0
3 years ago
About how much difference in average leaf width would you find in two forests whose average annual rainfalls are near 1500 mm bu
goblinko [34]

Answer:

4.80 mm to 2 d.p

Step-by-step explanation:

w = f(r)

f'(r) = (dw/dr) = (0.0218 mm/mm)

So, for a small difference in rainfall of 220 mm, what is the corresponding small difference in width of leaves in the two forests given.

One definition of a derivative or a rate of change is that it is the ratio of very small differences in the dependent variable to very small differences in the independent variable.

Mathematically,

(dw/dr) = (Δw/Δr) for very small Δw and Δr.

0.0218 = (Δw/220)

Δw = 0.0218 × 220 = 4.796 mm = 4.80 mm to 2 d.p

Hope this Helps!!!

5 0
3 years ago
What is the range of the function y=2sin x
statuscvo [17]

take the absolute value of the coefficient (2)

 then the lower bound is the negative of that (-2)

so the range is [-2,2]


7 0
3 years ago
Read 2 more answers
a florist makes 24 bouquets she uses 16 flowers for each bouquet altogether how many flowers does she use?
NNADVOKAT [17]

Answer:

384

Step-by-step explanation:

24 bouquets * 16 flowers = 384 flowers


Hope this helps! Please mark brainliest! Have a great day!



Thank you for using Brainly!

7 0
3 years ago
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