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3 years ago

Mrs Jackson lost money on an investment at a rate of $3 per day. How much did mrs Jackson lose after 4 days?

Mathematics

2 answers:

eduard3 years ago

8 0

Mrs. Jackson lost 12 dollars in a total of 4 days

Margaret [11]3 years ago

7 0

She lost 12 after 4 days, do 4 x 3 to get that

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The range of set scores is found by subtracting the lowest score from the highest. The range set scores is 52, and the lowest sc

Assoli18 [71]

Answer:

Step-by-step explanation:

Add 52 and 46 together. You get 98. So the highest score is 98.

4 0

3 years ago

Solve for x: √x + 3-4=7

nalin [4]

Answer:

x = 64

Step-by-step explanation:

Solve for x: √x + 3-4=7

√x + 3-4=7

= √x + 1 = 7

= √x = 7 + 1

= √x = 8

= (√x)² = 8²

x = 64

7 0

2 years ago

Saby used a probability simulator to roll a 6-sided number cube and flip a coin 100 times. The results are shown in the tables b

Degger [83]

Short Answers
P(Both) = 0.1792
Givens
The total number of roles = 100
Total number of heads = 56
Number of times rolled a four = 32 [check this for me].

Set up the probabilities.
P(H) = 56/100
P(4) = 32/100
P(H)*P(4) = P(Both)

Substitute and solve
P(Both) = 56/100 * 32/100 = 1792/10000
P(Both) = 112/625 because there are many cancellations. Or you could just express it as 0.1972

8 0

3 years ago

I need help with this 50 points

Marina86 [1]

Answer:

Step-by-step explanation:

Vertically stretched. The action of vertically stretched is accomplished by altering a in

y = a* abs(x)

What that means is that you make a > 1. In this case, a = 2

So far, what you have is

y = 2*abs(x)

Six units down. The action of 6 units down is accomplished by a number added or subtracted to/from absolute(x). down is minus, up is plus.

y = 2*abs(x) - b. Since we are moving down, b<0

y = 2*abs(x) - 6

Four Units Right. This is the tough one because it is anti intuitive. You would think you should be adding something somewhere to get a right hand movement.

Not true.

To move right you subtract something in the brackets.

y = 2*abs(x - 4) - 6

Graph

Just to make things complete, I have graphed this for you. Desmos is wonderful for this kind of problem.

red: y = abs(x)

blue: y = 2*abs(x - 4) - 6

5 0

3 years ago

Read 2 more answers

The ages of members of an online gaming group are normally distributed with a mean of 23 years and a standard deviation of 4 yea

Lelechka [254]

To get the number of members between 15 years and 30 years we proceed as follows:
z=(x-μ)/σ
where:
mean,μ=23
standard deviation, σ=4 years
thus
P(15<x<31)
when x=15
P(x<15)
z=(15-23)/4
z=-2
thus
P(x<15)=P(z<-2)=0.0228

when x=31
z=(31-23)/4
z=2
thus
P(x<31)=P(z<2)=0.9772
Hence:
P(15<x<31)=0.9544
hence the number of members between that age was:
0.9544×300
=286.32 people
~285 People
Answer: 285 people

5 0

4 years ago