Answer:
37.5% probability of the spinner landing on the number that's greater than five
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
In this question:
There are 8 total sections, from 1 to 8.
3 of those sections, 6, 7 and 8, are numbers that are greater than five.
3/8 = 0.375
37.5% probability of the spinner landing on the number that's greater than five
You move the decimal of 1.24 twice and also move the decimal of 11.25 twice because you have to do the same thing two both numbers.
Then now, youre dividing 1125 by 124 and that would equal 9.075
For this you divide the total spent by the total number of pizzas...
16.50/ 3 = $5.50 per pizza.
Rewrite the percentage as a decimal and multiply it by her pay.
3.5%= 0.035
8000 x 0.035 = $280.00
Answer:
The value of x is 8cm. The length of 3 sides are 8cm, 15cm and 17cm.
Step-by-step explanation:
Using Pythagoras' Theorem, a²+b² = c² :
Let a be x cm,
Let b be x+7 cm,
Let c be 2x+1 cm
x² + (x+7)² = (2x+1)²
x² + x² + 14x + 49 = 4x² + 4x + 1
2x² + 14x + 49 = 4x² + 4x + 1
Then, move all the variables to one side and solve it to find the value of x :
4x² + 4x + 1 - 2x² - 14x - 49 = 0
2x² - 10x - 48 = 0
2(x² - 5x - 24) = 0
x² - 5x - 24 = 0
(x-8)(x+3) = 0
x - 8 = 0
x = 8 cm
x + 3 = 0
x = -3 cm (rejected)
Substitute the x value into the length of a,b and c :
a = x
= 8 cm
b = x + 7
= 8 + 7
= 15 cm
c = 2x + 1
= 2(8) + 1
= 16 + 1
= 17 cm