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3 years ago

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Nelson was willing to trade Gavin 5 basketball cards for every 2 baseball cards he had. If Gavin has 46 baseball cards, how many

basketball cards will Nelson need to make the trade?

1 answer:

Cerrena [4.2K]3 years ago

3 0

Answer:

Nelson would have to have 115 basketball card.

Step-by-step explanation:

46 divided by 2 would be 23. Now you multiply 23 x 5 = 115.

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Write the solution set in set notation with no spaces. |2+3m|-9=7

IRINA_888 [86]

You have to add 9 on both sides and then you have to rewrite the equation with a positive and a negative and then you have to subtract 3 on both sides of each equation then you have to solve each equation to find the answer

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3 years ago

The complement of a 45° angle =___

d1i1m1o1n [39]

subtract the measurement of the angle from 90 degrees to find the complement of an angle.

90° - 45° = 45°

Hope it helps!

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3 years ago

a flower bed has the shape of a rectangle 5 yards long and 4 yards wide what is its area in square feet

Over [174]

Area of a rectangle = length times width.

Here, the area is (5 yd)(4 yd) = 20 yd^2. We must convert this into ft^2:

20 yd^2 3 ft

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3 years ago

Read 2 more answers

What should a size of a sample be in order to have a margin of error of 4% for a 90% confidence level from a population with a s

vagabundo [1.1K]

Answer:

We need a sample size of 2,071,800 or higher.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.9}{2} = 0.05$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.05 = 0.95$ , so $z = 1.645$

Now, we find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this problem:

We need a sample size of n or higher, when $M = 0.04, \sigma = 35$ . So

$M = z*\frac{\sigma}{\sqrt{n}}$

$0.04 = 1.645*\frac{35}{\sqrt{n}}$

$0.04\sqrt{n} = 1.645*35$

$0.04\sqrt{n} = 57.575$

$\sqrt{n} = 1439.375$

$\sqrt{n}^{2} = (1439.375)^{2}$

$n = 2,071,800$

We need a sample size of 2,071,800 or higher.

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3 years ago

Solve the formula y = mx b for m. a. (y minus b) x c. startfraction y minus b over x endfraction b. y minus b minus x d. startfr

sweet-ann [11.9K]

The given equation of the formula, y = mx + b, on solving for m by isolating it gives, <u>m = (y - b)/x</u>, making <u>option C</u> the right choice.

In the question, we are given the formula y = mx + b and are asked to solve the given formula for m.

To solve the equation for m, we need to isolate m to one side of the equation, and all other variables to the other side. This can be done as follows:

The given equation is:

y = mx + b.

Changing the sides of the equation gives us:

mx + b = y.

Subtracting b from both sides of the equation gives us:

mx + b - b = y - b,

or, mx = y - b {Simplifying}.

Dividing both sides of the equation by x gives us:

mx/x = (y - b)/x,

or, m = (y - b)/x {Simplifying}.

Thus, we have now isolated m to one side of the equation.

Thus, the given equation of the formula, y = mx + b, on solving for m by isolating it gives, <u>m = (y - b)/x</u>, making <u>option C</u> the right choice.

Learn more about isolating a variable at

brainly.com/question/1682776

#SPJ4

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2 years ago