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geniusboy [140]

3 years ago

8

A baseball player gets 7 hits in the first 15 games of the season. if he continues hitting at the same rate, how many hits will

he get in the first 45 games?

1 answer:

inessss [21]3 years ago

3 0

Hey there,
15 games = 7 hits
1 game = 7 / 15
= <span>0.46666666666
45 games = </span><span>0.46666666666 x 45
= 21

Hope this helps :))

<em>~Top♥</em>
</span>

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Solve the system of equations using substitution or elimination. Show all work for credit.

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Using substitution:
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Since both expressions are equal to y, you have to equal both expressions like this:
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Now you can solve the equation:
$- \frac{1}{2} x + 2 = 3( - x + 9) \\ - \frac{ 1}{2}x + 2 = - 3x + 27 \\ \\ - \frac{1}{2} x + 3x = 27 - 2 \\ \frac{5}{2} x = 25 \\ x = \frac{(25)(2)}{5} \\ x = 10$
Knowing x=10, you can use any of the expressions we found before to find y. In this case I'm going to use y= -x+9 because it's simpler but boy should give you the same result

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2 years ago

What is the center of the circle that has a diameter whose endpoints are (9, 7) and (-3, -5)?

emmasim [6.3K]

Answer: OPTION B.

Step-by-step explanation:

Given the endpoints of the diameter of the circle, we need to find the midpoint, which is the center of the circle.

The following formula is used to calculate the Midpoint:

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Given the endpoints of the diameter of the circle:

$(9, 7)\ and\ (-3, -5)$

We can identify that:

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Then, we can substitute these values into the formula:

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Answer:

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Step-by-step explanation:

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3 years ago

Several years ago, 39% of parents who had children in grades K-12 were satisfied with the quality of education the students r

BaLLatris [955]

<h2>Answer with explanation:</h2>

Let p be the population proportion of parents who had children in grades K-12 were satisfied with the quality of education the students receive.

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Set hypothesis to test :

$H_0: p=0.39\\\\H_a :p\neq0.39$

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Step-by-step explanayeettion:

10

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