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Luda [366]
3 years ago
15

If a plane can travel 500 miles per hour with the wind and 400 miles per hour against the wind, find the speed of the wind and t

he speed of the plane in still air . what is the speed of the wind?
pleaseeee helpp asap ​
Mathematics
1 answer:
OLga [1]3 years ago
8 0
Wind speed is 50 mph
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If 4 cups of water ran down the drain everyday, how many gallons would be lost over a year?
nataly862011 [7]
There are 365 days in a year, 365 multiplied by 4 cups a day... the answer is 1,460 cups went down the drain in a year.
Here, hope this helps :)
6 0
3 years ago
Sqrt(x)-5.5 when x=16
DochEvi [55]
Sqrt(16) = 4 because 4^2 = 16 ;
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7 0
3 years ago
Danielle sold a certain number of tickets to the school play, d. Sara sold 4 more tickets to the school play than the number Dan
svet-max [94.6K]

Answer:

5d+4

Step-by-step explanation:

Number of ticket sold by Daniel = d .... 1

If Sara sold 4 more tickets to the school play than the number Danielle sold, the total number sold by Sarah is expressed as d+4 .... 2

If Brett sold 3 times as many as Danielle sold, the amount sold by Brett is 3×d = 3d ..... 3

The number of tickets that the 3 students sold altogether can be gotten by adding equation 1, 2 and 3 together as shown;

d+(d+4)+3d

Collect like terms

= d+d+3d+4

= 2d+3d+4

= 5d+4

Hence the number of tickets that the 3 students sold altogether is represented as 5d+4

6 0
3 years ago
Brandon took a 50-question exam worth a total of 160 points. There were x two-point questions and y five-point questions. How ma
astra-53 [7]

Answer:

35 2-point questions, and 15 5-point questions

Assume x 2-points question, so 50-x 5-points question

Total no of points: 2*x+5*(50-x)=145 points

2x+250-5x=145

-3x=-105

x=-105/-3=35 2-points questions

Remaining 50-35=15 5-points questions

ok so i really hope this helped and if it didn't then sorry

7 0
3 years ago
Describe how to find the selling price of an item that has been marked up 110%
UkoKoshka [18]
Add 110% of the cost to the cost.

Alternatively, multiply the cost by 2.1.
8 0
3 years ago
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