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2 years ago

12

Solve the math problem

1 answer:

r-ruslan [8.4K]2 years ago

7 0

Answer:

See pic below.

Step-by-step explanation:

Draw a triangle in the graph and use the Pythagorean theorem.

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Michael has 1.85 in dimes and nickels.He has a total of 25 coins.how many of each does he have

creativ13 [48]

D+n=25 subtract d from both sides *(if your wondering what d and n are it stands for Dimes and Nickels)* n=25-d
0.10d+0.05= 1.85
0.10d+0.05(25-d)= 1.85
0.10d+1.25-0.05d= 1.85
0.05d = 0.60
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
My answer: He has 12 dimes (d=12) and 25-12=13 so 13 nickels.. Hope this helps! :)

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3 years ago

PLEASE HELP! TWO PROBLEMS!!

MrRissso [65]

1) x=−2 2) y=−6 Hopefully that helps you ❤.

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3 years ago

Find a linear equation whose graph is the straight line with the given property.

Triss [41]

Answer:

Step-by-step explanation:

-5.25+2.25 - 3

1-0.5 = 0.5

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2 years ago

A skirt costs $20 more than the blouse. the skirt costs $65. what is the price of the blouse. write an equation. then solve the

Aleksandr [31]

$65 - $20
=$45

$65=the skirt

$45=the blouse

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2 years ago

Assume the time required to complete a product is normally distributed with a mean 3.2 hours and standard deviation .4 hours. Ho

Alex787 [66]

Answer: 3.712 hours or more

Step-by-step explanation:

Let X be the random variable that denotes the time required to complete a product.

X is normally distributed.

$X\sim N(\mu=3.2\text{ hours},\ \sigma=0.4\text{ hours} )$

Let x be the times it takes to complete a random unit in order to be in the top 10% (right tail) of the time distribution.

Then, $P(\dfrac{X-\mu}{\sigma}>\dfrac{x-\mu}{\sigma})=0.10$

$P(z>\dfrac{x-3.2}{\sigma})=0.10\ \ \ [z=\dfrac{x-\mu}{\sigma}]$

As, $P(z>1.28)=0.10$ [By z-table]

Then,

$\dfrac{x-3.2}{0.4}=1.28\\\\\Rightarrow\ x=0.4\times1.28+3.2\\\\\Rightarrow\ x=3.712$

So, it will take 3.712 hours or more to complete a random unit in order to be in the top 10% (right tail) of the time distribution.

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3 years ago