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2 years ago

Ryan has 3 times as many nickels as dimes. The coins have a total of $1.50. How many of each coin foes he have?

Mathematics

2 answers:

mafiozo [28]2 years ago

5 0

0.5?maybe I just divided 1.50 by 3

valentinak56 [21]2 years ago

5 0

Answer:

Step-by-step explanation:

by 4 3 2 1 xd HAVE FUN KIDS

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Ivahew [28]

Answer:

Slope: 1/2.5

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Step-by-step explanation:

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2 years ago

1)Sheyna drive to the lake and back. It took two hours less time to get there than it did to get back. The average speed on the

ipn [44]

Answer:

8 hours

Step-by-step explanation:

Given:

Sheyna drives to the lake with average speed of 60 mph and

$v_1 = 60\ mph$

Sheyna drives back from the lake with average speed of 36 mph

$v_2 = 36\ mph$

It took 2 hours less time to get there than it did to get back.

Let $t_1$ be the time taken to drive to lake.

Let $t_2$ be the time taken to drive back from lake.

$t_2-t_1 = 2$ hrs ..... (1)

To find:

Total time taken = ?

$t_1+t_2 = ?$

Solution:

Let D be the distance to lake.

Formula for time is given as:

$Time =\dfrac{Distance}{Speed }$

$t_1 = \dfrac{D}{60}\ hrs$

$t_2 = \dfrac{D}{36}\ hrs$

Putting in equation (1):

$\dfrac{D}{36}-\dfrac{D}{60} = 2\\\Rightarrow \dfrac{5D-3D}{180} = 2\\\Rightarrow \dfrac{2D}{180} = 2\\\Rightarrow D = 180\ miles$

So,

$t_1 = \dfrac{180}{60}\ hrs = 3 \ hrs$

$t_2 = \dfrac{180}{36}\ hrs = 5\ hrs$

So, the answer is:

$t_1+t_2 = \bold{8\ hrs}$

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3 years ago

Find the area of the trapezoid.

Vadim26 [7]

Area of the trapezium = 1/2(18 + 6) x 12
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2 years ago

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Okay.. well did you try to do it on your own at least ? I help you, but what do you know already so we can go on from there.

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2 years ago

Voltage = 18v. Current = 36 amps resistance =?

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Voltage= Current * Resistance
Plug in your values and solve for 'x' or resistance

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3 years ago

Ryan has 3 times as many nickels as dimes. The coins have a total of $1.50. How many of each coin foes he have?​

Ryan has 3 times as many nickels as dimes. The coins have a total of $1.50. How many of each coin foes he have?