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2 years ago

6

(20 POINTS (pls help ;-;)!!) In how many ways can three medals (gold, silver and bronze) be awarded for a race involving 20 cars

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1 answer:

posledela2 years ago

8 0

Answer:

6480

Step-by-step explanation:

Using the Permutation formula P(n,r)=? We use 20 as n and 3 as r and then use a permutation calculator.

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You use a gift card to buy a pair of shorts for $8. There is $32 left on the gift card after your purchase. What was the origina

Olenka [21]

Answer:

40

Step-by-step explanation:

32+8=40

6 0

3 years ago

An assembly line inspector inspected 340 machine parts. 323 of the parts passed inspection. What percent of the machine parts di

tester [92]

Answer:

5% did not pass inspection

Step-by-step explanation:

Given

$Inspected= 340$

$Passed = 323$

Required

Determine the percentage of parts that didn't pass inspection.

First, we need to calculate the number of those that didn't pass inspection.

$Failed = Inspected - Passed$

$Failed = 340 - 323$

$Failed = 17$

Next, we calculate the percentage as follows:

$\% = \frac{Failed}{Inspected} * 100\%$

The above formula is derived by dividing the number of parts that didn't pass inspection by the total machine inspected, then multiplied by 100%

So:

$\% = \frac{17}{340} * 100\%$

$\% = \frac{17 * 100\%}{340}$

$\% = \frac{1700\%}{340}$

$\% = 5\%$

<em>5% did not pass inspection</em>

6 0

3 years ago

Would the mean or median best describe the following data?

abruzzese [7]

36 is the median and add them all then divide by 5 to get the mean

8 0

3 years ago

Read 2 more answers

System of equations, <br><br> 3x - 6y =2<br><br> 5x + 4y = 1

Anettt [7]

3x-6y=2 (label equation 1)
5x+4y=1 (label equation 2)
-6y=-3x+2 (rearranged equation 1)
y=1/2x-1/3 (label equation 3)
substitute equation 3 into equation 2
5x+4(1/2x-1/3)=1
5x+2x-4/3=1
15x+6x-4=3 (multiplied everything by 3)

21x-4=3
+4 +4
21x=7
x= 7/21
x=1/3
sub x=7/21 into equation 3
y= 1/2(1/3) -1/3
y= -1/6

Therefore x=1/3 and y= -1/6

7 0

3 years ago

An ice cream factory makes 150 quarts of ice cream in 10 hours. how many quarts can be made in 48 hours.WHAT WAS THE RATE PER DA

vladimir2022 [97]

Answer:

48 hour = 720 quarts.

24 hour = 360 quarts.

Step-by-step explanation:

150/10 = how much it make per hour which is = 15

15 x 48 = 720 = how much it's made in 48 h.

720/2 = how much it is per day which is = 360.

4 0

3 years ago