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pogonyaev
3 years ago
4

Tim has two spinners, spinner A and spinner B.Each spinner can only land on red or blue. The probability that spinner A will lan

d on is 0.5 and the pribability that spinner B will land on blie is 0.6. Tim spins spinner A once and he spins spinner B once. He does this for a number of times.
The number of times both spinners land on red is 84. Work out an estimate for the number of spinners land on blue.
Mathematics
2 answers:
bezimeni [28]3 years ago
6 0
Is this out of workbook
Neporo4naja [7]3 years ago
3 0

Answer:

the answer is 56.

Step by step explanation:

0.5 x 0.4 = 0.20

0.5 x 0.6 = 0.30

84/x = 0.30

84/0.30 = x

280 = x

0.2 x 280 = 56

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A circle has a circumference of 153.86153.86153, point, 86 units.
mariarad [96]
Answer=24.49 I’m not 100% sure but I believe this is the answer :)
Hope it helps
3 0
4 years ago
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In our family there is five boys and one girl. What percent of the family is boys?
saw5 [17]

Answer:

83% are boys

Step-by-step explanation:

Im not sure if you have to round but you take the total number of family members (6) and divide it by how many boys (5) which would be 0.8333333 which you can round to either 80 or 83

8 0
3 years ago
Which compound inequalities have the solution set represented by the given graph? Check all that apply
Contact [7]

We check with each options

'Or' represents the intersection of two graphs

'And' represents two separate graphs'

We have two separate shaded part in the given graph

So we ignore the options that has 'and' in between

LEts check first  and second option

\frac{x}{2}=13

Simplify the first part and second part

multiply both sides by 2 .

x < 2  or  4x - 2 > = 26

solve 4x-2 > = 26

add 2 on both sides and then divide both sides by 4

4x >= 28

x >= 7

So solution is x<2 or x>=7 . that is the graph on number line

Lets check with second option

3x-3<3  or  2x+8>=22

add 3 on both sides

3x < 6

divide both sides by 3

so x< 2

2x+8>=22

subtract 8 on both sides

2x >= 30

divide both sides by 2

x >= 15

x<2  or x>=15 that does not satisfies the graph

So option A is correct



7 0
4 years ago
Read 2 more answers
Can someone please help me to solve this? ASAP<br> Please with explanation, no spam
snow_lady [41]

Answer:

<h2>which question dear..maybe you forgot to add the attachment...</h2>
7 0
4 years ago
What are the answers to these thank you and please tell me how to get it
mote1985 [20]
5-3(1/2x+2)=-7
-3(1/2x+2)=-7-5
(1/2x+2)=4
1/2x=2
x=4
just to give u an idea
4 0
3 years ago
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