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Keith_Richards [23]

3 years ago

14

A bag contains pennies, nickles, dimes, and quarters.There are 50 coins in all. Of the coins, 10% are pennies and 32% are dimes.

There are 9 more nickles than pennies. How much money does the bag contain?

1 answer:

ikadub [295]3 years ago

8 0

10 pennies, 16 dimes, 19 nickles.
Sorry I'm not from US so I don't know your currency. Sorry about that. Hope what I have given you is enough. :)

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Determine the domain and range of the function F= {(2,1),(30,-7),(34,1),(54,0)

Arisa [49]

Answer:

Domain = 2,30,34,54

Range = 1,-7,1,0

Step-by-step explanation:

Domain = x input

Range = y output

Your function is f(x) = y.

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3 years ago

Consider the line y = 7x-5.

cluponka [151]

Answer:

$\boxed {\sf Parallel: 7 }$

$\boxed {\sf Perpendicular: -\frac{1}{7}}}$

Step-by-step explanation:

First, identify the slope.

We are given the line y=7x-5.

This is in slope intercept form or y=mx+b where m is the slope and b is the y-intercept. So, the coefficient to x, or 7 in this case, is the slope.

m=5

Now, find the parallel and perpendicular slopes.

1. Parallel Slope

Parallel lines never intersect, so they have the same slope. A parallel line has a slope of 7.

2. Perpendicular Slope

Perpendicular slopes intersect to form right angles. They have negative reciprocal slopes.

Negate the slope: 7⇒ -7
Find the Reciprocal (flip the numerator and denominator: -7/1 ⇒ -1/7

A parallel line has a slope of 7 and a perpendicular line has a slope of -1/7.

7 0

3 years ago

Read 2 more answers

How do you estimate 48×3

Rashid [163]

I would say to round 48 to 50 and then multiply 50 x 3=150 or if you do 48x3=144 then estimate it to about 140

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3 years ago

ILL GIVE BRANLIEST AND MANY POINTS

viva [34]

Percent change formula:

C = x - x

2 1 / x

1

To calculate percent change we need to take the difference between the starting value and final value, divide by the absolute value of the starting value, and multiply the result by 100.

1. 72 is a 33.333% decrease of 108. Round is 33%.

2. 90 is a 20% increase of 75. Round is 20%.

3. 49 is a 75% increase of 28. Round is 80%.

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3 years ago

Troyanec [42]

$0.79
x 3.7
---------
553
+2370
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The product of 0.79x 3.7 is 2.923. And, the decimal was moved three times to the right of the equation because of the number of spaces until the next decimal which then allows you to move the decimal three times to the left on the product.

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3 years ago