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3 years ago

7

P is a prime number and q is a positive integers such that p + q = 1696 IF P and Q are co primes and their Lcm is 21879 Then fin

d p and q

1 answer:

Stolb23 [73]3 years ago

4 0

Answer:

P = 1 3

Q = 1 6 8 3

Step-by-step explanation:

through factorization of 21879

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Luis Nunez begins walking at a rate of 8 mph. Forty-five minutes after he leaves, his wife, Kristin, realizes that Luis has fo

Aleksandr [31]

Answer:

a). 18 minutes

b). 8.4 miles

Step-by-step explanation:

a). Let Luis meet Kristina after the time = h hours

So the distance traveled by Luis in h hours = Speed × time

= 8×h

= 8h miles

If Kristin started after 45 minutes of $\frac{45}{60}$ hours then the distance traveled by her

= Speed × time

= $28\times (h-\frac{45}{60})$ miles

Since after h hours distances traveled by Luis and Kristin are same so,

$28(h-\frac{45}{60})=8h$

28h - 8h = $\frac{28\times 45}{60}$

20h = 21

h = 1.05 hours

So the time taken by Kristin = (h - 0.75)

= 1.05 - 0.75

= 0.30 hours ≈ 18 minutes

b). Distance traveled by Luis before Kristin catches Luis = 8×1.05

= 8.4 miles

5 0

3 years ago

16.8 is 10% of what number? Someone help TWT

Aloiza [94]

Answer:

168

Step-by-step explanation:

16.8 = 10%

x = 100%

To get to 100%, you have to multiply 10 by ten and 16.8 by 10. Like this:

16.8 = 10% original equation

16.8 (10) = 10% (10) * both sides by 10

168 = 100% simplify

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7 0

3 years ago

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Find the surface area of this triangular prism

Yuki888 [10]

Answer:

300 in2

Step-by-step explanation:

area of 2 identical triangle + area of 3 rectangle = surface area

(5*12/2)*2 + 8*12 + 5*8 + 8*13 = 300 in2

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4 years ago

Identifying the domain and range of the relation.

marishachu [46]

Answer:

1. The domain is (-2, -1, 0, 1) the rage is (4,2,0,2) 2. It is a function

Step-by-step explanation:

The domain in a pair is always the first number. The range is always the second number in the ordered pair.

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3 years ago

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An accelerated life test on a large number of type-D alkaline batteries revealed that the mean life for a particular use before

zheka24 [161]

Answer:

68.2% of the batteries failed between 17.8 and 20.2 hours.

95.44% of the batteries failed between 16.6 and 21.4 hours.

99.97% of the batteries failed between 15.4 and 22.6 hours.

Step-by-step explanation:

The 68-95-99.7 states that, for a normally distributed sample:

68.26% of the measures are within 1 standard deviation of the sample.

95.44% of the measures are within 2 standard deviations of the sample.

99.97% of the measures are within 3 standard deviations of the sample.

In this problem, we have that:

Mean of 19 hours, standard deviation of 1.2 hours.

About 68.26% of the batteries failed between what two values?

This is within 1 standard deviation of the mean. So 68.2% of the batteries failed between 17.8 and 20.2 hours.

About 95.44% of the batteries failed between what two values?

This is within 2 standard deviations of the mean. So 95.44% of the batteries failed between 16.6 and 21.4 hours.

About 99.97% of the batteries failed between what two values?

This is within 3 standard deviations of the mean. So 99.97% of the batteries failed between 15.4 and 22.6 hours.

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3 years ago

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