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prisoha [69]
3 years ago
7

The chance of randomly selecting a red marble from a bag is 3/10. What is the probability of not selecting a red marble.

Mathematics
1 answer:
Andreas93 [3]3 years ago
5 0
The correct answer is 7/10
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Find the sum of the least and greatest two digit prime numbers whose digits are also prime?
adoni [48]
First, we need to know the smallest two digit prime number. It can't start with one, since one is not prime, so it must start with two (or be in the twenties.) 20 is divisible by 2, 4, 5, and 10, 21 is divisible by 7 and 3, 22 is divisible by 2 and 11, so the smallest prime number is 23.

Now we need the largest two-digit prime number. It cannot start with nine or eight, since both are composite, so it must start with seven (be in the seventies.) 79 is the largest integer in the seventies and also happens to be prime, so there's our largest two digit prime number.

now we just need to add them for the sum:
23+79=102

hope I helped, and let me know if you have any questions :D
7 0
3 years ago
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SashulF [63]
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3 years ago
Solve the equation below:<br> X+2/3x = 4/x
Vladimir [108]

Answer:

hmmm no idea

Step-by-step explanation:

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4 0
3 years ago
18÷90.54 I need help I have I minute!!!
Tcecarenko [31]
0.19880716 should be your answer
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5 0
2 years ago
Read 2 more answers
triangle QRS is an equilateral triangle if QR is 7 less than twice X RS is 61 less than 5 times x and QS is 11 more than x find
Katarina [22]

Answer:

QR=RS=QS=29    

Step-by-step explanation:

Given QRS is an equilateral triangle, thus all the three sides of the given triangle will be equal.

Also, from the given statement, we have

QR=2x-7, RS=5x-61 and QS=11+X

Now, As all the sides of the triangle are equal, therefore

QR=RS=QS

⇒QR=RS

⇒2x-7=5x-61

⇒-7+61=5x-2x

⇒54=3x

⇒x=18

Thus, the measure of QR=2(18)-7=29,RS=5(18)-61=29 and QS=11+18=29.

4 0
3 years ago
Read 2 more answers
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