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2 years ago

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to find the average number of points per game a player scores use the formula points per game = total points/games. find the num

ber of games a player has played if she has scored a total of 221 points and is averaging 17 points game

1 answer:

murzikaleks [220]2 years ago

6 0

Okay so this is your equation; 17=221/x all you need to do is multiply 221 by 17 and you'll have your answer. I hope this helps!

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Miss Martinez purchase two kinds of candy for a math game. Diplo pops cost $.50 each and the sneakers cost $.60 each. She purcha

torisob [31]

Answer:

The number of Diplo pops D = 18

The number of sneakers S = 12

Step-by-step expla nation:

Given:

Cost of one Diplo pops = $.50

Cost of one sneakers = $.60

Total number of candies purchased = 30 pieces

cost of the number of candies purchased = $16.80

To Find:

Number of each type of candies = ?

Solution:

Let

The number of Diplo pops be D

The number of sneakers be S

Total number of candies = 30

S+D = 30

S= 30 - D--------------------------------------(1)

and cost of 30 candies is $16.80

S(0.50) + D(0.60) = 16.80----------------(2)

Substituting (1) in (2)

(30 - D)(0.50) + D(0.60) = 16.80

15 - 0.50D +0.60D = 16.80

15 + 0.10D = 16.80

0.10D = 16.80 - 15

0.10D = 1.80

D = $\frac{1.80}{0.10}$

D = 18

So the number of Diplo pops = 18

Number of sneakers S= 30 - 18 = 12

7 0

2 years ago

What is the exam score for an exam whose z-score is 1.25?

mojhsa [17]

Answer:

85

Step-by-step explanation:

A z-score of 1.25 means that the actual exam score is 1.25 standard deviations above the mean, and therefore the exam score we are looking for is: mean + 1.25 * SD = 75 + 1.25 * 8 = 85

4 0

2 years ago

Find all solutions of the equation in the interval [0, 2pi).

mina [271]

Answer:

x = 0 , π

Step-by-step explanation:

$-4 \sin x = 1 - cos^2 x$

Rewrite it by using the identity $\sin^2x + \cos^2x = 1$

$=> -4\sin x = \sin^2x$

Add 4sin x to both the sides.

$=> -4\sin x + 4\sin x = sin^2x + 4\sin x$

$=> \sin^2x + 4\sin x = 0$

Take sin x common from the expression in L.H.S.

$=> \sin x(\sin x + 4)=0$

Here , we can get two more equations to find x.

1) $\sin x(\sin x + 4)=0$

Divide both the sides by sin x

$=> \frac{\sin x(\sin x + 4)}{\sin x} = \frac{0}{\sin x}$

$=> \sin x + 4 = 0$

Substract 4 from both the sides.

$=> \sin x + 4 - 4 = 0 - 4$

$=> \sin x = -4$

$=> x = No \; Solution$

2) $\sin x(\sin x + 4)=0$

Divide both the sides by (sin x + 4)

$=> \frac{\sin x(\sin x + 4)}{\sin x + 4} = \frac{0}{\sin x + 4}$

$=> \sin x = 0$

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3 years ago

Can you help me answer this question???

Softa [21]

Answer:

d

Step-by-step explanation:

Just look for the one that have right adding

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2 years ago

A car will be traveling a total distance of 520 miles. The first part of the trip takes 2 hours, and the car’s average rate is 6

Marrrta [24]

Answer: 65

Step-by-step explanation:

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3 years ago