3 years ago

$360 increased by 25%

Mathematics

2 answers:

bija089 [108]3 years ago

8 0

450 is the correct answer

Marina86 [1]3 years ago

7 0

Answer:

450

Step-by-step explanation:

360 × 1.25 = 450

multiply by 1.25 because .25 is 25% and the 1 before it is to make sure you are finding the number plus the 25%, not just 25 percent of the number.

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Use the Counting Principle to find the probability. Choosing the 7 winning lottery numbers when the numbers are chosen at random

frozen [14]

Answer: 120

<u>Step-by-step explanation:</u>

Since the order of the numbers doesn't matter we can use the formula:

$\dfrac{n!}{r!(n-r)!}\quad \text{where n is the quantity of items and r is the quantity chosen}\\\\\text{In this problem, there are 10 numbers (n = 10) and 7 to be chosen (r = 7)}\\\\_{10}C_{7}=\dfrac{10!}{7!(10-7)!}\\\\.\qquad=\dfrac{10!}{7!3!}\\\\.\qquad=\dfrac{10\times 9\times 8\times 7!}{7!\times 3\times 2\times 1}\\\\.\qquad=10\times 3\times 4\\\\.\qquad=120$