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1 year ago

The account balance of each of three children at the end of a month is shown below:

Mathematics

2 answers:

xeze [42]1 year ago

8 0

Answer:

A) See attached.

B) Cheryl owes the bank more.

Step-by-step explanation:

Given account balances:

John: -$2.75
Cheryl: -$3.00
Andrew: $2.75

(Andrew has as much savings in his account as the amount John owes).

Draw a straight, horizontal line with arrows on both ends.
Place a tick in the center of the line and label it zero.
Draw 4 evenly spaced ticks either side of the zero.
Number the ticks to the right of the zero 1, 2, 3 and 4.
Number the ticks to the left of the zero -1, -2, -3, and -4.
Mark -2.75, -3 and 2.75 on the number line.
Label the marks with John, Cheryl and Andrew.

(See attached number line).

The absolute value of a number is its positive numerical value.

To calculate how much John and Cheryl owe the bank, take the absolute values of their account balances:

John: |-2.75| = 2.75

Cheryl: |-3.00| = 3.00

As 3.00 > 2.75, Cheryl owes the bank more.

Elza [17]1 year ago

5 0

Part A (describing the number line):
-Draw a horizontal line
-Put a zero in the middle of the line
-Put -1 to -4 on the left of 0
-Put 1 to 4 on the right of 0
-Draw a dot at -2.75 and label John
-Draw a dot at -3 and label Cheryl

Part B: Cheryl owes the bank more than John. |-2.75| |-3.00| The absolute values are never negative so: 2.75 & 3.00. 3.00 is greater than 2.75.

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3 years ago

37% of women consider themselves fans of professional baseball. you randomly select six women and ask each if she considers hers

valina [46]

Answer:

(a) 2.22

(b) 1.3986

Step-by-step explanation:

Let X denote the number of women who consider themselves fans of professional baseball.

The proportion of women who consider themselves fans of professional baseball is, p = 0.37.

A random sample of n = 6 women are selected and each was asked if she considers herself a fan of professional baseball.

Each woman's reply is independent of the others.

The random variable X thus follows a binomial distribution with parameters n = 6 and p = 0.37.

(a)

Compute the mean of the binomial distribution as follows:

$\text{Mean}=np=6\times 0.37=2.22$

(b)

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(c)

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5 0

2 years ago

1. Type your answer below. 2. Type your answer below (no spaces! for example x=19) 3. Type your answer below (no spaces! for exa

Nookie1986 [14]

Answer:

1) 12

2) c=-25

3) x = -16 2/3

Step-by-step explanation:

1) ..........................

6*(4-10+8) =
6*(- 6+8) =
6*2=
12

2) ..........................

34 + 2c = -16
2c = - 16 -34
2c = -50
c = -50/2
c=-25

3) ..........................

40 = -3x - 10
40+ 10 = -3x
-3x = 50
x = 50/-3
x=-16 2/3

3 0

2 years ago

The shoe store's clerks are paid on commission. If the clerk receives a 12% commission on total purchase amounts before tax is a

aev [14]

Answer:

a) 37 + 42 =79

=7/100 x 79

=553/100

=5.53

Isaac's total bill = 79 + 5.53 = $84.53

b) 25/100 x 79

= 19.75

= 79 - 19.75

= $59.25 (before tax)

7/100 x 59.25

= 414.75/100

= 4.15

= 59.25 + 4.15

= $63.4 (after adding tax)

First we have to take out the percentage of discount and minus it from the total cost . To find the discounted price with tax, we have to take out the percentage of the tax from the discounted amount and add it to the discounted amount to get the total cost.

3 0

2 years ago