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3 years ago

Can anyone help me please? it’s urgent.

Mathematics

1 answer:

katrin [286]3 years ago

8 0

It said "no association between this dude winning and loss in harsh condition"

now look at harsh condition, total is 20, since there is no association that means they are the same, which is 10 and 10

WIN column total is 168, 158 for normal condition, 10 for harsh condition, adds up to 168.

LOSS column total is 72, 62 for normal condition and 10 for harsh condition, adds up to 72.

if u wana check if it adds up with Normal Condition, 62 plus 158 is 220.

checked, complete, this is david signing off

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3a + 4a + 9 + 5<br> 4a-1=9

Vesna [10]

Answer:

$\displaystyle 31\frac{1}{2}$

Step-by-step explanation:

9 = −1 + 4a

+ 1 + 1

_________

$\displaystyle \frac{10}{4} = \frac{4a}{4} \\ \\ 2\frac{1}{2} = a \\ \\ \\ 3[2\frac{1}{2}] + 4[2\frac{1}{2}] + 9 + 5 = 7\frac{1}{2} + 10 + 9 + 5 = 31\frac{1}{2}$

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4 0

3 years ago

Which inequality can represent the following: " x is at most 30"

Deffense [45]

Answer:

x ≤ 30

Step-by-step explanation:

≤ is less than or equal to which means it is less than or is 30 but no greater than 30 hence the "at most"

6 0

3 years ago

How does 7.3978 have greater value then 7.3888

Jet001 [13]

7.397 will round to 7.40 and 7.388 will round to 7.39

7 0

3 years ago

Read 2 more answers

Eight less than the product of a number and four.

olchik [2.2K]

Answer:

4x - 8

Step-by-step explanation:

Let x be the number

"The product of a number and four" means 4x
"Eight less than the product of a number and four" means 4x - 8

I hope this helps!

8 0

4 years ago

Read 2 more answers

Ben has 3.40 consisting of quaters and dimes. How many coins of each kind does he have if he has 22 coins?

Thepotemich [5.8K]

Answer:

8 quarters and 14 dimes

Step-by-step explanation:

This situation has two unknowns - the total number of dimes and the total number of quarters. Because we have two unknowns, we will write a system of equations with two equations using the two unknowns.

• $d+q=22$ is an equation representing the total number of coins

• $0.10d+0.25q=3.40$ is an equation representing the total value in money based on the number of coin. 0.10 and 0.25 come from the value of a dime and quarter individually.

We write the first equation in terms of q by subtracting it across the equal sign to get $d=22-q$ . We now substitute this for d in the second equation.

$0.10(22-q)+0.25q=3.40\\2.2-0.10q+0.25q=3.40\\2.2+0.15q=3.40$

After simplifying, we subtract 2.2 across and divide by the coefficient of q.

$2.2+0.15q=3.40\\0.15q=1.20\\q=8$

We now know of the 22 coins that 8 are quarters. To find the number of dimes, we subtract 8 from 22 to get 14 dimes.

4 0

4 years ago