3 years ago

Lines 1 || m, then Zz= a. 120 b. 60 c. 180 d. 90

Mathematics

1 answer:

Grace [21]3 years ago

4 0

Answer:

bbbbbbbbbbbbbbbbbbbbb

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The battery on McKenzies old computer can last 4(1/5) hours. She bought a new computer that has a battery that can last 40% long

Solnce55 [7]

Answer:

$5\frac{22}{25}\ hours$

Step-by-step explanation:

we know that

$4\frac{1}{5}\ hours=\frac{4*5+1}{5}=\frac{21}{5}\ hours$

$100\%+40\%=140\%=\frac{140}{100}$

Let

x ------> new battery life

The equation that represent this situation is

$x=\frac{140}{100} (\frac{21}{5})=\frac{2,940}{500}\ hours$

convert to mixed number

$\frac{2,940}{500}=\frac{2,500}{500}+\frac{440}{500}=5\frac{22}{25}\ hours$

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3 years ago

Part D

In-s [12.5K]

Answer:

0.222

Step-by-step explanation:

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a train travelling at 60 km per hour completes the journey in 8 hour. How much faster would it have to travel to cover the same

antiseptic1488 [7]

Answer:

Total distance covered: 60x8 = 480

Speed needed to cover distance of 480 km in 6 hrs = 480/6 = 80 km/hr.

initial velocity : 60 km/hr.

Train needs to run faster with speed of 20km per hour to achieve same distance in 6 hrs.

Step-by-step explanation:

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3 years ago

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zysi [14]

Answer:

Step-by-step explanation:

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How can you do this

ololo11 [35]

You add up all of the sides and the numbers that are there you pretend that they are on the other side and just add all of them up correctly and you will get your answer.

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3 years ago

Read 2 more answers

Lines 1 || m, then Zz= a. 120 b. 60 c. 180 d. 90​

Lines 1 || m, then Zz= a. 120 b. 60 c. 180 d. 90