3 years ago

Which of the four representations are incorrect?

Mathematics

1 answer:

VLD [36.1K]3 years ago

7 0

The table is incorrect.

The correct table would be:
0-5
1-4.8
2-4.6
3-4.4
4-4.2
5-4.0
6-3.8

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Jimmy pays 30% of his salary to tax before all other deductions. Jimmy fortnightly gross salary is 2,500. what is Jimmy's fortni

Montano1993 [528]

Answer:

1750

Step-by-step explanation:

So first we have to find out how much tax he pays which is 30% of 2,500=750. now we know how much tax he pays, we can subtract it from his salary: 2500-750=1750

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3 years ago

I know the converse but I need to know which ones are true

Ray Of Light [21]

The converse of the statement would be

"If x ≤ 7, then x² ≤ 49"

but this is false. Take x = -8; while it's true that -8 ≤ 7, the second inequality is not, since (-8)² = 64 is not smaller than 49.

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3 years ago

Ashley has $150 in her bank account. She buys a bike for $200. Now her account balance is -$50. If she deposits the $75 she rece

polet [3.4K]

Answer:

She will have $25.00 in her bank account!

Step-by-step explanation:

If she has -$50 and adds 75 that is filling in the negative hole and adding $25 to the 0 she would have. ;) hope this helps!

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3 years ago

In November mr.Lee’s students read 50 books. In December they read 40 books what is the percent increase or decrease in the numb

MA_775_DIABLO [31]

Answer:

percentage decrease,20%

Step-by-step explanation:

50_40 books=,10 bus

10|50 ×100%=20%

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3 years ago

Read 2 more answers

A tennis tournament has 2n contestants. We want to pair them up for the first round of singles matches. Show that the number of

ddd [48]

There are

$\dbinom{2n}2 = \dfrac{(2n)!}{2! (2n-2)!}$

ways of pairing up any 2 members from the pool of $2n$ contestants. Note that

$(2n)! = 1\times2\times3\times4\times\cdots\times(2n-2)\times(2n-1)\times(2n) = (2n-2)! \times(2n-1) \times(2n)$

so that

$\dbinom{2n}2 = \dfrac{(2n)\times(2n-1)\times(2n-2)!}{2! (2n-2)!} = \boxed{n(2n-1)}$

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2 years ago