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aleksley [76]
3 years ago
14

PLZ HURRY IT'S URGENT!!

Mathematics
1 answer:
Alexxx [7]3 years ago
3 0

Answer:

B. The experimental probability of a 1 is 25%.

Step-by-step explanation:

Since there are 4 sections of equal size, the theoretical probability of landing on any one of the them is equal. The probability of landing on any one of the sections is 25%. The experimental probability is based on the results of an actual experiment, meaning spinning the spinner, and recording the results.

A. The theoretical probability of a 1 is 25%. True as explained above.

B. The experimental probability of a 1 is 25%. False. There were three spins. One spin resulted in a 1. The experimental probability of spinning a 1 is 1/3 or 33 1/3 %.

C. If you spin the same spinner again and get different results, the experimental probabilities are different, but the theoretical probabilities have not changed. True. See explanation above. The theoretical probability is always 25% for any of the sections, 1, 2, 3, or 4. The experimental probability depends on the results of the actual spins that were performed.

D. The experimental probability of a 2 is 0%. True. The spinner was spun 3 times. There was no result of a 2, so the experimental probability of landing on a 2 is 0%.

Answer: The false statement is B. The experimental probability of a 1 is 25%.

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The office manager of a small office ordered 140 packs of printer paper based on average daily use, she knows that the paper wil
Mandarinka [93]

slope intercept form is y=mx+b

So slope intercept form is The office manager of a small office ordered 140 packs of printer paper based on average daily use, she knows that the paper will last about 80 days

(A) Lets make a table

X axis represents the Number of days paper used

y axis represents the packs of printer paper used

x            y

days      packs of printer paper used

0            0               (0 days , 0 packs used)

80          140           (in 80 days , 140 packs paper used)

The graph is attached below

(B) To find Equation of a line we use points (0,0)  and (80,140)

slope = \frac{y_2-y_1}{x_2-x_1} = \frac{140-0}{80-0} = \frac{7}{4}

y intecept is (0,0)

so b= 4

Slope intercept form of a line i y=mx + b

m is the slope and b is the y intercept

So slope intercept form of line becomes

y= \frac{7}{4} x

Standard form is Ax + By =C

y= \frac{7}{4} x

Multiply both sides by 4

4y = 7x

Now subtract 7x on both sides

-7x + 4y =0 is the standard form

(c) To find packs of printer paper  the manager expect to have after 30 days, Plug in 30 for x  and find out y

y= \frac{7}{4} x

y= \frac{7}{4}(30)= 52.5

Total 140 packs of printer paper

52.5 packs of paper used

Packs of paper remaining after 30 days = 140- 52.5= 87.5


8 0
3 years ago
2x-8y=-24<br> 6x+4y=68<br> Using elimination method
nikklg [1K]
6(2x-8y=-24)
-2 (6x+4y=68)
12x-48y=-144
-12x-8y=-136
-56y=-280

-280÷-56=5
y=5

2x-8 (5)=-24
2x-40=-24
+40. +40
2x=16
16÷2=8
×=8


y=5
x=8
hope this helps, if needed a picture for better understanding,please comment.
4 0
3 years ago
Which of the following number sentences show the correct method to find 43% of 59 Select TWO that apply.
Helen [10]

Answer:

a and b

Step-by-step explanation:

6 0
2 years ago
1. The zoo fed the large 680 pounds of food last week. Seven large animals each ate the same amount while the elephant ate 183 p
postnew [5]

Answer:

1: 71 pounds

2: 14 jellybeans

Step-by-step explanation:

1:

680 - 183 = 497

497 / 7 = 71

2:

Esther had (6 times)-7

77 + 7 = 84

84 / 6 = 14

8 0
2 years ago
4×455 use any strategy to solve?
AnnyKZ [126]

4 x 400 = 1600

4 x 50 = 200

4 = 5 = 20

answer 1820

6 0
3 years ago
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