2 years ago

Urgent please!!!!!!!!!!

Mathematics

1 answer:

Jlenok [28]2 years ago

6 0

Answer:

The answer shoudl be 6.2 miles

Step-by-step explanation:

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A boat travels 30 miles up the river in the same amount of time it takes to travel 38 miles down the same river. If the current

Ksenya-84 [330]

X miles per hour - speed of the boat in still water
(x - 2) - speed up the river
(x + 2) - speed down the river

$\frac{30}{x - 2}$ = $\frac{38}{x + 2}$
30 * (x + 2) = 38 * (x - 2)
30x + 60 = 38x - 76
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x = 17 miles per hour - the speed of the boat in still water.

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2 years ago

Use the table to work out the values of a , b , c , and d .

scZoUnD [109]

Answer:

a = - 1, b = - 3, c = - 5, d = - 6

Step-by-step explanation:

Substitute the appropriate values of x into the equation and evaluate

x = - 3 : y = - (- 3) - 4 = 3 - 4 = - 1 → a

x = - 1 : y = - (- 1) - 4 = 1 - 4 = - 3 → b

x = 1 : y = - 1 - 4 = - 5 → c

x = 2 : y = - 2 - 4 = - 6 → d

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2 years ago

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The sum of 4 consecutive integers is 78. What are the 4 integers? Help please

Natasha2012 [34]

Answer:19,20,21 and 22

Step-by-step explanation: if this is for a test your welcome bud.

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The students at Lexi's school voted for a new school mascot. 219 students voted to be The Falcons. The other 146 students in Lex

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60%. there are 365 students in total because 219+146 is 365. 219/365 is .6 meaning the percent is 60%. The percentage is the students who voted to be falcons was 60%

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Let X denote the voltage at the output of a microphone, and suppose that X has a uniform distribution on the interval from −1 to

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Step-by-step explanation:

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