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olga nikolaevna [1]
3 years ago
11

The spinner is divided into 10 equal sections.

Mathematics
2 answers:
WITCHER [35]3 years ago
7 0

Answer:

spinning a 4 or 5, spinning a number less than 3, spinning a number greater than 8

Step-by-step explanation:

The spinner has 10 spaces, if we took a 4/5 (2) and made it into a fraction (2/10) then simplified is (1/50---Less than 3, so that means not 3 itself either, so a 1 or a 2, so (2/10), then simplify it, (1/5)--- Greater than 8, so not 8 itself, so 9 or a 10 (2/10) then simplified, (1/5)

Vikki [24]3 years ago
4 0

Answer:

A, B and D

Step-by-step explanation:

Total numbers on spinner=10

We have to find the event that has theoretical probability of exactly 1/5.

A.Spinning a number less than 3

Number less than 3 = 1  and 2

Favorable cases=2

Probability,P(E)=\frac{favorable\;cases}{total\;number\;of\;cases}=\frac{2}{10}=\frac{1}{5}

Hence,It is true.

B.Spinning a 4 or 5

Favorable cases=2

Probability ,P(E)=\frac{2}{10}=\frac{1}{5}

Hence,It is true.

C.Spinning odd number

favorable cases=1,3,5,7,9=5

Probability,=\frac{5}{10}=\frac{1}{2}

D.Spinning a number greater than 8

Number greater than 8=9 and 10

Favorable cases=2

Probability ,P(E)=\frac{2}{10}=\frac{1}{5}

Hence,It is true.

E.Spinning a number less than 8

Number less than 8=7

Probability,P(E)=\frac{7}{10}

Option A, B and D are true.

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What property is used to change the sum of 18+6 to the equivalent expression 6(3+1)
Fittoniya [83]

The distributive property is used to get the equivalent expression

Step-by-step explanation:

The properties on mathematical expressions are used to simplify or elaborate the expressions.

One of the propoerties is distributive properties

The distributive property states that:

Let a, b and c be three integers then

a(b+c) = ab+ac

The property can be used both ways

In given expression

18+6

= 6.3+ 6.1\\=6(3+1)

The distributive property is used to get the equivalent expression

Keywords: Properties

Learn more about properties at:

  • brainly.com/question/3614284
  • brainly.com/question/3783529

#LearnwithBrainly

7 0
3 years ago
\begin{aligned} &y=2x +1 \\\\ &x-y=-3 \end{aligned} ​ y=2x+1 x−y=−3 ​ Is (2,5)(2,5)left parenthesis, 2, comma, 5, right
trapecia [35]

Answer:

Yes

Step-by-step explanation:

Given the system of equations

\begin{aligned} &y=2x +1 \\\\ &x-y=-3 \end{aligned}

We want to determine if (2,5) is a solution of the system.

We can do this by substitution of the given point into the equations and see if it holds.

Given (x,y)=(2,5), x=2, y=5

<u>In the first equation</u>

y=2x+1

5=2(2)+1

5=5

Therefore, <u>the point (2,5) satisfies the first equation.</u>

<u>In the second equation</u>

x-y=2-5=-3

Since our result (-3) is equal to the Right Hand Side, <u>the point also satisfies the second equation.</u>

<u />

Therefore, (2,5) is a solution of the system.

7 0
3 years ago
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kkurt [141]
Maybe from the equation of a line from y=mx+c
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Serggg [28]
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3 years ago
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Harlamova29_29 [7]

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8 0
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