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Answer:
There are 210 different ways that 4 cards can be drawn.
There are 252 different ways that 5 cards can be drawn.
There are 120 different ways that 7 cards can be drawn.
Step-by-step explanation:
Use the combination formula
10C4 =210
10C5 = 252
10C7 = 120
Answer:
12
Step-by-step explanation:
144/16=9
Each child gets sixteen coins if there are nine children.
9+3=12
There are three more children so there are twelve.
<h3>
Answer: 5/6</h3>
Apply the square root to 25/36, which is the same as square rooting each piece of the fraction
sqrt(25) = 5
sqrt(36) = 6
Put another way, you can think of it in reverse:
(5/6)^2 = (5/6)*(5/6) = (5*5)/(6*6) = (5^2)/(6^2) = 25/36
Part A answer: 2x+5. x is the number of miles driven.
Part B answer: $305. Plug in 150 for x, and the equation is 2*150+5=x, x being your answer that you are looking for. Do the Order of Operations, which is PEMDAS (Parenthesis, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right.) So in other words, do 2*150 first, and you get 300. Now your equation is 300+5=x. Add 300+5, and you get 305=x. So your answer is $305.