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3 years ago

What are the factors of x2 − 49?

1 answer:

3 0

(x-7)(x+7).. this one is super easy, u need 2 numbers that are the same that when multiplied give you -49 but when added and subtracted cancel themselves.. if you multiply -7 times 7 you get -49 and if you add -7+7 they cancel out

Hope this helps

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10,483 people attended a rock festival. If there were 811 more boys than girls, and 2,481 fewer adults over 50 years of age than

Maslowich

Given =

total people attented a rock festival = 10483

number of boys more than girls in the rock festival = 811

fewer adult over 50 year of age = 2481

find out the each group attented the festival

To proof =

let us assume that the number of the girls be x.

let us assume that the number of the boys be y.

let us assume that the number of the adults be z.

thus we have equation

x + y + z = 10483

number of boys (y) = x + 811

number of adults (z) = x - 2481

put these all value inthe equation x + y +z = 10483

we get

x + x + 811 + x - 2481 =10483

3x -1670 = 10483

3x = 12153

x = 4051

the number of girls are 4051

the number of boys = 4051+ 811

i.ethe number of boys are 4862

the number of adults = 4051 - 2481

i.e number of adults are 1570.

Hence proved

7 0

4 years ago

Textbooks are exempted from PST in Ontario. If the total cost of a book

Andrei [34K]

Answer:

4.24

Step-by-step explanation:

Total price = price of the book + 5% of the price of the book

T = total price P = price of the book G = GST

T = P + G

and

G = 5% of P = 0.05P

therefore

T = P + 5%P = 1P + 0,05P = 1.05P

P = T/1.05 = 89/1.05 ≅ 84.76 (it is 84.7619047619)

G = 89 - 84.76 = 4.24

8 0

3 years ago

Round off 15.8% to the nearest whole percent with work shown

Rudik [331]

15.8% would round to 16%

If the number after the decimal point is 5 or greater you round the 5 up to a 6. If it had been less than a 5 it would have rounded down to 15%.

5 0

4 years ago

How do you convert to radians

Elanso [62]

If x is an which of the following statements adds 5 to the current value of x and stores the new value back in x?If x is an int, which of the following statements adds 5 to the current value

6 0

3 years ago

Read 2 more answers

Help!

vodomira [7]

Answer:

2:18 PM

Step-by-step explanation:

This is the answer because:

1) First, count 3 hours from 10:47 AM. 10:47 - 11:47, 11:47 - 12:47, 12:47 - 1:47. We will end up with 1:47 PM.

2) Next, just add 31 minutes. In order to get 2:00 PM, we have to add 13 minutes, therefore, subtract 13 from 31, this is 18.

3) Finally, add 18 to 2:00, which is just 2:18 PM.

Hope this helps! :D

5 0

3 years ago

Read 2 more answers