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2 years ago

Sean and Mariana started drinking their slushies at the same time and tried to drink them as fast as they could.

Mathematics

2 answers:

adell [148]2 years ago

5 0

Answer:

1. Sean

2. Mariana

Equations:

Sean: y=-5.5x+300

Mariana: t=-5x+250

For the first question, it is basically asking for who has a greater negative slope, which would be Sean, since he drank his faster.

For the second question, Mariana finished his slushy at the x-intercept of 50, while for Sean, it would be an estimated 54.5.

never [62]2 years ago

3 0

Answer: what are the options?

Step-by-step explanation:

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A steel pipe 100 cm long has an outside diameter of 2 cm and an inside diameter of 1.8 cm. If thee density of the steel is 7.8 g

ELEN [110]

Answer:

The mass of the pipe is $465\ g$

Step-by-step explanation:

step 1

Find the volume of the steel pipe

The volume is equal to the area of outside circle minus the area of inside circle, multiplied by the length of the pipe

$V=\pi [r2^{2}-r1^{2}]L$

we have

$r2=2/2=1\ cm$ ---> the radius is half the diameter

$r1=1.8/2=0.9\ cm$ ---> the radius is half the diameter

$L=100\ cm$

$\pi=3.14$

substitute

$V=(3.14)[1^{2}-0.9^{2}](100)=59.66\ cm^{3}$

step 2

Find the mass

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2 years ago

g A car company is testing a new type of tire. They want to determine the stopping distance if the car has anti-lock brakes or n

Keith_Richards [23]

Answer:

Road conditions

Step-by-step explanation:

The factor that should be mostly considered in this case is the Road conditions, that way the tyre with the best stopping distance can be determined.

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2 years ago

Henri has $24,000 invested in stocks and bonds. The amount in stocks is $6,000 more than three times the amount in bonds. How mu

kotykmax [81]

Answer:

The amount of investment in bonds is US$ 4,500 and the amount of investment in stocks is US$ 19,500

Step-by-step explanation:

Total investment in stocks and bonds = US$ 24,000

Amount of investment in bonds = x

Amount of investment in stocks = 3x + 6,000 (amount in stocks is $6,000 more than three times the amount in bonds)

For finding the value of x (amount of investment in bonds), we use this equation:

x + 3x + 6,000 = 24,000

x + 3x = 24,000 - 6,000

4x = 18,000

x = 4,500 (dividing by 4)

The amount of investment in bonds is US$ 4,500

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3x + 6,000 = 3 (4,500) + 6,000 = 13,500 + 6,000 = 19,500

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Answer:

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