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WINSTONCH [101]
2 years ago
13

It's students so raffle tickets to raise money for a field trip the first 20 tickets sold four dollars each to sell more tickets

they lower the price to two dollars each if they raise $216 how many tickets do they sell at all
Mathematics
1 answer:
8090 [49]2 years ago
5 0
They had $80 then they cut the price. so 216-80=136

136/2=68

68+20=88

they sold 88 tickets
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Calculate the mass of a rectangular solid that has a density of 2.53 g/cm3 and which measures 25 mm by 1.80 cm by 3.00 cm.
Annette [7]
Mass = density x volume 
1st we need to get the volume 
V = (25*10^-1) * (1.8) * (3) 
V = 13.5 cm3 
mass = 2.53 * 13.5 
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3 0
2 years ago
15. The average speed that a tsunami (a large tidal wave) travels is represented
irina [24]

Correct question :

The average speed that a tsunami (a large tidal wave) travels is represented

by the functions = (200d)^1^/^2 where s is the speed (in miles per hour) that the tsunami is traveling and d is the average depth (in feet) of the wave.

a. Find the inverse of the function.

b. Find the average depth of the tsunami when the recorded speed of the wave is 250 miles per hour.

Answer:

a) d = \frac{s^2}{200}

b) 312.5 ft

Step-by-step explanation:

Given:

Average speeds, s = (200d)^1^/^2

a) To find the inverse of the function.

s = (200d)^1^/^2

s² = 200d

200d = s²

d = \frac{s^2}{200}

Therefore, inverse of the function =

d = \frac{s^2}{200}

b) average depth when speed is 250 miles per hour.

Average depth = d

Therefore, let's use the formula :

d = \frac{s^2}{200}

= \frac{250^2}{200}

= \frac{62500}{200}

d = 312.5 feet

The average depth when speed is 250 miles per hour is 312.5 ft

3 0
3 years ago
Read 2 more answers
Solve -9m-4+2m = -9-7m+5, and interpret the results.
Drupady [299]

Answer:

-9m - 4 + 2m = -9 - 7m + 5

-7m - 4 = -7m - 4

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This is an identity solution because the same number equals the same number. That means there's an infinite set of solutions.

5 0
3 years ago
2. Find the number of cubical
lys-0071 [83]

Answer:number of boxes = 60

Volume of box = side × side × side.

 = 3 × 3 × 3

= 27 cu. cm.

Volume of carton = length × breadth × height.

= 15 × 9 × 12

= 1620 cu. cm.

Number of boxes = Volume of carton/Volume of each box.

= 1620/27

= 60

Therefore, number of boxes = 60.

Step-by-step explanation:Volume of box = side × side × side.

 = 3 × 3 × 3

= 27 cu. cm.

Volume of carton = length × breadth × height.

= 15 × 9 × 12

= 1620 cu. cm.

Number of boxes = Volume of carton/Volume of each box.

= 1620/27

= 60

Therefore, number of boxes = 60.

3 0
3 years ago
Doug's teacher told him that the standardized score (z-score) for his mathematics
BigorU [14]

Answer:

Doug’s test score is 1.20 standard deviations above the average test score of the students in the course.

I just took the test and got it right :)

Step-by-step explanation:

8 0
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