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Pani-rosa [81]
3 years ago
5

Can you please answer this question I need to submit in 30 min please HURRY ASAP PLEASE NEED HELP PLEASE !!!!!!!!!!!

Mathematics
1 answer:
Virty [35]3 years ago
6 0

Answer:

The answer is "21"

Step-by-step explanation:

mn + 3r

m = 5

n = 4

r = 1/3

Now just substitute the values given in the question into the equation

5(4) + 3(1/3)

Multiply 5 and 4 to get 20

20 + 3(1/3)

3(1/3) cancels out and becomes 1

20 + 1

Add 20 and 1

21

So "21" is your answer

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Distance between -7,9
NeX [460]

Answer:

the answer would be eleven

5 0
3 years ago
Michael drove 350 miles in 7 hours at a constant speed. Tell whether each statement is true or false. a. The unit rate for miles
faltersainse [42]

A. True B. False it would take 5 hours to go 250 miles going at 50mph C. True going at 50mph in about 3 hours he would have driven 150 miles D. False 300 divide by 50 is 7 but it took him 7 hours to get to his destination so it is false

I may be wrong i used this website here: https://www.timecalculator.net/speed-distance-time-calculator

And this one as well: https://researchmaniacs.com/Calculator/miles-mph-to-time/50/how-long-does-it-take-to-drive-350-miles-at-50-mph.html

Yes yes i did look all of this up i didn't want to steer you wrong ._.

3 0
3 years ago
Which number is the opposite of Point B on the number line?
KonstantinChe [14]
The answer is 6
Because the number line is skip counting by 2
7 0
3 years ago
A lie-detector works correctly with 80% probability when the person is lying, and with 90% probability when the person is not. A
muminat

Answer:

the time percentage is 17%

Step-by-step explanation:

The computation of the time percenatge in the case when the detector lie and done with the mistake is as follows:

L denotes the event  in which a person is lying.

NL denotes the event in which a person is not lying.

C denotes the event in which that lie detector works correctly

NC denotes the event in which  lie detector is not working correctly

Now

P(C|L) =0.8

And,

P(NC|L) is

=1 - .8

= 0.2

P(C|NL) =0.9

P(NC|NL) is

= 1 -.9

=.1

P(L) = 0.7

P(NL) is

= 1 - .7

= .3

Now

P(NC) =P(NC|L) × P(L) + P(NC|NL) × P(NL)

=. 2 × .7 + .1 ×.3

=. 14+.03

= 0.17

Hence, the time percentage is 17%

8 0
3 years ago
Can any one help me at this q
Lisa [10]

Answer:

-14.4

Step-by-step explanation:

the reason being is because 6 degrees celsius is equivalent to 42.8 degrees 14 degrees celsius is equivalent to 57.2 degrees, that stated subtract subtract 57.2 from 42.8 and get -14.4

7 0
3 years ago
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