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3 years ago

How many two-digit primes have both their digits non-prime? 6 5 4 3 2

Mathematics

1 answer:

malfutka [58]3 years ago

3 0

Answer:

11, 13, 17, 31, 37, 71, 73, 79, 97 are the two digit numbers which remain prime even on interchanging the digits.

Step-by-step explanation:

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Find the sum in its simplest form. 6/9 + 6/9 will give brainlist for best answer

sukhopar [10]

Answer:

→Step 1:

$\frac{6}{9} + \frac{6}{9}$

write the equation

→Step 2:

$\frac{6 + 6}{9}$

after taking LCM of 6/9 and 6/9 we get( 6+6)/9

→step 3:

$\frac{12}{9}$

after adding 6 and 6 we get 12

→Step 4:

$\frac{4}{3}$

after dividing numerator and denominator by 3 we get 4/3

→step5:

$1.334$

finally we get 1.334✓

hope it helped you:)

7 0

3 years ago

Read 2 more answers

WORTH 35 POINTS HELP MEEEEEEE PLEZ I NEED HELP

Alex Ar [27]

Answer:

4x +y = 3

Step-by-step explanation:

Perpendicular lines have slopes that are the negative reciprocals of one another. When the equation of the line is written in standard form like this, the equation of the perpendicular line can be written by swapping the x- and y-coefficients and negating one of them. Doing this much would give you ...

4x +y = (constant)

Note that we have chosen to make the equation read 4x+y, not -4x-y. The reason is that "standard form" requires the leading coefficient to be positive.

Now, you just need to make sure the constant is appropriate for the point you want the line to go through. So, it needs to be ...

4(2) +(-5) = constant = 3

The line of interest has equation ...

4x + y = 3

7 0

2 years ago

Read 2 more answers

In the final quarter of 2011, a company received 32% of the total profit for all mobile phone manufacturers. If the total profit

Sav [38]

The total profit received for all mobile phone manufacturers for all carriers was 1.54 billion

Step-by-step explanation:

Given,

Profit received = 32%

Total profit received = $4.8 billion

Amount of profit received for mobiles = 32% of total profit

Amount received = $\frac{32}{100}*4.8$

Amount received = $\frac{153.6}{100}$

Amount received = 1.536 billion

Rounding off

Amount received = 1.54 billion

The total profit received for all mobile phone manufacturers for all carriers was 1.54 billion

Keywords: percentage, division

Learn more about percentage at:

#LearnwithBrainly

3 0

4 years ago

PLEASE IF YOU ARE SMART HELP ME WITH THIS PROBLEM. I WILL GIVE YOU EXTRA POINTS

raketka [301]

$a_{n} = 2a_{n-1} + 3$

$a_{1} = 2$

$a_{2} = 2a_{2-1} + 3 = 2a_{1} + 3 = (2*2) + 3 = 4 + 3 = 7$

$a_{3} = 2a_{3-1} + 3 = 2a_{2} + 3 = (2*7) + 3 = 14 + 3 = 17$

$a_{4} = 2a_{4-1} + 3 = 2a_{3} + 3 = (2*17) + 3 = 34 + 3 = 37$

$a_{5} = 2a_{5-1} + 3 = 2a_{4} + 3 = (2*37) + 3 = 74 + 3 = 77$

Hence, the first five terms are 2, 7, 17, 37, 77.

3 0

3 years ago

The sum of three consecutive odd numbers is 123 what is the smallest of the three numbers

Inga [223]

Answer:

Step-by-step explanation:

Let the three consecutive odd numbers be:

x+2, x+4, x+6.

The sum of the consecutive numbers is 123 i.e

x+2 + (x+4) + (x+6) = 123

x + 2 + x + 4 + x + 6 = 123

3x + 12 = 123

Collect like terms

3x = 123 — 12

3x = 111

Divide both side by the coefficient of x i.e 3

x = 111/3

x = 37

Now let us find the value of the three odd numbers. This is illustrated:

1st : x + 2 = 37 + 2 = 39

2nd : x + 4 = 37 + 4 = 41

3rd : x + 6 = 37 + 6 = 43

The smallest of the three consecutive odd numbers is 39

5 0

3 years ago