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3 years ago

Each tray has 5 colors, one color is purple, what fraction of the colors in 20 trays is purple

1 answer:

6 0

Each tray is 1/5 purple. So one tray is 1/5 purple, and if you add another tray, you're adding the same amount of each color, so it's now 2/10 purple, which simplifies to 1/5. No matter how many you add, the fraction will be 1/5.

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Multiply to -260 add to 7

djyliett [7]

What can you be more specific like a put it in a sentence. For example x*-260+7=?

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3 years ago

Frank is going to buy some ties

Fudgin [204]

Answer:

6 shirts

Step-by-step explanation:

The cost of a shirt and 2 ties is ...

$18.50 +2(7.50) = $33.50

For $205, Frank can buy $205/$33.50 = 6.12 sets of shirt and ties.

Frank can buy 6 shirts (and 12 ties) for an amount less than $205.

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<em>Additional comment</em>

Frank's cost will be $201 for that purchase.

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2 years ago

Carla paid $129 plus 6% sales tax for a guitar. What

Nesterboy [21]

Answer:

136.74

Step-by-step explanation:

6 percent of $129 is $7.74

129 plus 7.74 = 136.74

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2 years ago

A rectangular park is 5/6 miles wide and 1 5/7 miles long. What is the area of the park? Enter your answer as a mixed number in

bagirrra123 [75]

Answer:First we need to turn 1 5/7 into an improper fraction 7x1+5 = 12/7

12 / 7 x 5 / 6 = 60/42 ....reduced.....10/7

10/7 as a mixed number is 1 3/7

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The mean amount spent by a family of four on food is $500 per month with a standard deviation of $75. Assuming that the food cos

Alexeev081 [22]

Answer:

$z=\frac{x- \mu}{\sigma}$

And replacing we got:

$z=\frac{425-500}{75}= -1$

And we can calculate this probabilit using the normal standard distribution or excel and we got:

$P(z$

Step-by-step explanation:

If we define the random variable of interest "the amount spent by a family of four of food per month" and we know the following parameter:

$\mu = 500, \sigma = 75$

And we want to find the following probability:

$P(X$

And we can use the z score formula given by:

$z=\frac{x- \mu}{\sigma}$

And replacing we got:

$z=\frac{425-500}{75}= -1$

And we can calculate this probabilit using the normal standard distribution or excel and we got:

$P(z$

5 0

3 years ago