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3 years ago

Help asap! with all 6 questions!!! Due today

Mathematics

1 answer:

Gennadij [26K]3 years ago

7 0

Answer:

Step-by-step explanation:

i dont know sorry

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3 years ago

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Amit built a sand castle that measured 151 centimeters by 159 centimeters, and dug a moat around it.

Zigmanuir [339]

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Step-by-step explanation:

amit built a sand castle that measured 151 centimeters by 159 centimeters, and dug a moat around it.

Afterward,they decided to change the castle size, making it 127 centimeters by 233 centimeters.

How much longer will the new moat be than the old one?

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2 years ago

Solve this: - 4 h = 32

anzhelika [568]

Answer:

Step-by-step explanation:

-4h=32

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3 years ago

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You move down 5 units and right 1 unit. You end at (5,-3). Where did you start?

stiv31 [10]

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Step-by-step explanation:

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3 years ago

Fred walked a trail at 2 mph. Paul started 30 minutes later on the same trail and walked at a pace of 3 mph. Create a system of

spayn [35]

Answer:

$y=2x\\y=3(x-\frac{1}{2})$

Paul will catch Fred after $1\ hours$ at a distance $3\ miles$ .

Step-by-step explanation:

Distance is represented by $y$ and the time is represented by $x$ . Here after $x$ hours(when Fred started) the distance covered by Fred and Paul is same that is $y$ .

For Fred:

time= $x$

distance= $y$

Speed $=2\ mph$

$Distance=speed\times time\\y=2\times x \\y=2x$

Paul:

Since Fred started 30 minutes earlier, so Paul's travel time will be 30 minutes less than that of Fred.

Time $=x-\frac{1}{2}$

Speed $=3\ mph$

Distance $=y\\$

$y=3\times (x-\frac{1}{2})\\y=3(x-\frac{1}{2})$

Hence system of equation

$y=2x\\y=3(x-\frac{1}{2})$

Solution of this system of equations gives the time, when Paul will catch Fred and distance covered by each of them.

$y=2x\\y=3(x-\frac{1}{2})\\\\2x=3x-\frac{3}{2}\\x=\frac{3}{2}\\\\y=2x\\y=2\times \frac{3}{2}\\y=3$

Time taken by Paul $=x-\frac{1}{2}=\frac{3}{2}-\frac{1}{2}=1$

Hence Paul will catch Fred after $1\ hours$ at a distance $3\ miles$ .

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3 years ago