Answer:
Any radical in the form can be written using a fractional exponent in the form . The relationship between and works for rational exponents that have a numerator of 1 as well. For example, the radical can also be written as , since any number remains the same value if it is raised to the first power.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Answer:
Step-by-step explanation:
a) Percentage of potato filling = 100 - (30 + 25) = 100 - 55 = 45 %
b) Let the number of pies sold = x
45% of x = 90

Number of pies = 200
c) Number of cheese filling = 30% of 200

Number of beef pies = 25% of 200

Difference = 60 - 50 = 10
There are 10 more cheese pies than beef pies.
Answer:
All are rational numbers.
Step-by-step explanation:
A rational number can be written in the form:

where a and b are integers and b≠0.
We can rewrite 136 as

hence 136 is a rational number.
715-245=470....is an integer and hence a rational number.
(47)(217)=10199....which is an integer, and all integers are rational numbers.

15 is also an integer and hence an integer.