All categories

3 years ago

PLEASE HELP!

Mathematics

1 answer:

ELEN [110]3 years ago

3 0

Answer:

Colin's mean score = 17.10

The new mean is 18.00

Step-by-step explanation:

Given scores: 31, 10, 26, 16, 28, 31, 9, 11, 8, 1

number of terms: 10

mean is calculated by given formula = sum of all the data set/ number of terms in the data set.

mean for the 10 scores = (31+ 10+ 26+ 16+ 28+ 31+ 9+ 11+ 8+ 1 )/10

= 171/10 = 17.1

Colin's mean score = 17.10

____________________________________________

runs scored by Colin in 11th match = 27

number of terms: 11

new mean = new sum /number of terms

new mean = (old sum score + 27)/11 = (171+27)/11

new mean = 198/11 = 18

The new mean is 18.00

You might be interested in

The maximum speed of China’s CRH380A train is 4.873 × 102

Brrunno [24]

Answer:

The maglev train can reach a top speed of 431 km/h (268 mph).

Step-by-step explanation

7 0

2 years ago

HELP ME A INNOCENT CHILD PLEASSSSSSSSSSSE

agasfer [191]

1 YEAR = 12 months

divide: 5,031 ÷ 12 = 419.25

419 dollars and 25 cents each month

hope it helps!

4 0

3 years ago

Read 2 more answers

What is true about the dilation?

IrinaK [193]

Dilation is scale factor, like a dilation scale factor of 2

8 0

2 years ago

Simplify the expression below. Show your Work.

lord [1]

Answer:

7y + 24

Step-by-step explanation:

Think of the negative sign to the left of the parentheses as being -1. Then apply the distributive property. The effect of a negative sign to the left of parentheses or a 1 to the left of parentheses is that each term inside the parentheses changes sign.

-(-7y - 24) = -1(-7y - 24) = (-1)(-7y) - (-1)(24) = 7y - (-24) = 7y + 24

8 0

3 years ago

When Mya looked out at the store's parking lot, she noticed that for every 4 cars, there were 6 trucks. If there's a total of 22

olasank [31]

Answer:

<h2>88 cars</h2><h2>132 trucks</h2>

Step-by-step explanation:

This is a ratio problem, the ratio of cars to trucks

for every 4 cars, there are 6 trucks

represented as a ratio we have 4:6

1. how many of them are cars

applying the part to whole strategy we have

4+6 = 10

let cars be x

$\frac{4}{10}= \frac{x}{220} \\\\x= \frac{220*4}{10} \\\\x= 880/10\\\\x= 88 cars$

2. how many of them are trucks?

let trucks be y

$\frac{6}{10}= \frac{y}{220} \\\\x= \frac{220*6}{10} \\\\y= 1320/10 \\\\y= 132 trucks$

3 0

3 years ago