I will give 70 -0ints

Mathematics

2 answers:

kaheart [24]1 year ago

8 0

Answer:

See below ~

Step-by-step explanation:

(a) Mean of the data

2.4 + 1.6 + 3.2 + 0.3 + 1.5 / 5
9/5
1.8

(b) New mean after each data point increased by 10

12.4 + 11.6 + 13.2 + 10.3 + 11.5 / 5
59/5
11.8

(c) New mean after each data point doubled [from (b)]

24.8 + 23.2 + 26.4 + 20.6 + 23 / 5
118/5
23.6

lord [1]1 year ago

6 0

Answer:

a) 1.8

b) 11.8

c) 23.6

mean: sum of numbers/total numbers

⇒ mean: (2.4+1.6+3.2+0.3+1.6)/5 ⇒ 9/5 ⇒ 1.8

If all the data's are increased by 10

{12.4, 11.6, 13.2, 10.3, 11.5}

Then mean ⇒ (12.4+11.6+13.2+10.3+11.5)/5 ⇒ 11.8

if the new data doubled, the mean will be double

11.8 * 2 = 23.6

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The state of New Jersey makes approximately $1.55 billion annually from tolls of the $1.55 billion about 3/4 comes from tolls on

Rama09 [41]

Percent of turn pike is 75% and percent of parkway is 25%.

Solution:

Given, The state of New Jersey makes approximately $1.55 billion annually from tolls of the $1.55 billion

About $\frac{3}{4}$ comes from tolls on the turnpike

Remaining $\frac{1}{4}$ comes from tolls on the parkway

To find the percent of the total revenue from turnpike:

$\begin{array}{l}{\text { Percent of turnpike }=\frac{\text { amount from parkway }}{\text { total revenue }} \times 100} \\\\ {=\frac{\frac{3}{4} \text { of total revenue }}{\text { tot al revenue }} \times 100} \\\\ {=\frac{\frac{3}{4} \times \text { total revenue }}{\text { total revenue }} \times 100} \\\\ {=\frac{3}{4} \times 100=3 \times 25=75 \%}\end{array}$

To find the percent of the total revenue from parkway:

$\begin{array}{l}{\text { Percent of parkway }=\frac{\text { amount from parkway }}{\text { total revenue }} \times 100} \\\\ {=\frac{\frac{1}{4} \text { of total revenue }}{\text { total revenue }} \times 100} \\\\ {=\frac{\frac{1}{4} \times \text { total revenue}}{\text { total revenue }} \times 100} \\\\ {=\frac{1}{4} \times 100=25 \%}\end{array}$