2 years ago

Pls help will mark brainliest solve the system using a matrix.

Mathematics

1 answer:

umka2103 [35]2 years ago

7 0

Answer:wertyuiop[]\]

';lkjhgfd

Step-by-step explanation:

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Mr. Williams is driving on a highway at an average speed of 50 miles per hour. His destination is 100 miles away. The

svetlana [45]

Answer:

t = -d/50 + 2

0.5 hour

Step-by-step explanation:

Given the equation:

d = 50 - 100t

The inverse function:

A.) solving for t

d = 100 - 50t

d - 100 = - 50t

Divide both sides by - 50

d/-50 - (100/-50) = - 50t/-50

-d/50 - (-2) = t

t = -d/50 + 2

B) using the inverse function:

t = -d/50 + 2

Miles driven (d) = 75, find time (t)

t = - 75/50 + 2

t = - 1.5 + 2

t = 0.5

t is in hours, therefore time left to travel is 0.5 hours or 30 minutes

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2 years ago

Two trains leave a train station at the same time. One travels north at 12 miles per hour. The other train travels south at 9 mi

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Answer:

4.2 hours

Step-by-step explanation:

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3 years ago

11+11=4 22+22=16 33+33= What’s the answer

s344n2d4d5 [400]

Answer:

what method exactly r u using ????

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3 years ago

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Rochelle works part-time at the college museum, which pays her at a rate of $10 per hour. She also makes small bracelets that sh

katrin [286]

We know for our problem that Rachel makes $10 per hour. Since $x$ represent the number of hours that she works, $10x$ will be the total amount that she will make for working $x$ hours. We also know that she sells bracelets for $5 each. Since $y$ represents the number of of bracelets that she sells, $5y$ will be her total revenue for selling $y$ bracelets. We also know that she needs to earn at least $200 a week to cover her expenses, so the sum of $10x$ and $5y$ must be equal or greater than 200:

$10x+5 \geq 200$

We can conclude that the graphs that shows the inequality that represents this situation, with its solution region shaded is:

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2 years ago

You are selling candy bars for the school to

Strike441 [17]

Answer:

200 bars

Step-by-step explanation:

$300 - $50 = the amount of money you still need, $250

250 dollars/$1.25 per bar = 200 bars you need to sell to get 300 dollars

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3 years ago