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2 years ago

If it is 4:40 now, what time was it 5 hours and 15 minutes ago?

Mathematics

2 answers:

Natali5045456 [20]2 years ago

7 0

11:25 is the answer.

mamaluj [8]2 years ago

3 0

The answer is that it would be 11:25

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During a lunch period, a survey is done about the students at LCHS with the following results:

Flauer [41]

Answer:

1 in 47.

Step-by-step explanation:

Add all of the outcomes (28 + 2 + 3 + 14).

You'll get 47.

Do not add the 1s.

There is your answer.

1 in 47.

4 0

3 years ago

PLEASE I NEED HELP! How do you find y?

myrzilka [38]

In this example, y is equal to 8.

In order to find this, first note that the two x value expressions create a straight line. That means when we add them together they will equal 180. this will give us a value for x.

x + 10 + 10x - 61 = 180

11x - 51 = 180

11x = 231

x = 21

Now that we have the value of x, we can do the same for the straight line created by the x + 10 angle and the 18y + 5 angle.

x + 10 + 18y + 5 = 180

(21) + 10 + 18y + 5 = 180

36 + 18y = 180

18y = 144

y = 8

4 0

3 years ago

Curtis plays a trivia game he earns 2 points for each correct answer and loses 0.25 points for each incorrect answer he get 21 c

Maslowich

Answer:

Step-by-step explanation:

Curtis is playing a trivia game.

Number of points earned for each correct answer = 2

Number of points lost for each correct answer = 0.25

Given that:

Number of correct answers given by Curtis = 21

Number of wrong answers given by Curtis = 4

To find:

Total score of the game by Curtis?

Solution:

First of all, let us find the points earned by correct answers.

Points earned by correct answers = Number of correct answers multiplied by Points earned on one correct answer.

Points earned by correct answers = 21 $\times$ 2 = 42

Now, let us find the points to be lost by wrong answers.

Points lost by wrong answers = Number of wrong answers multiplied by Points lost on one correct answer.

Points lost by wrong answers = 4 $\times$ 0.25 = 1

The score of the game can be calculated by subtracting the points lost from the points earned.

Score = 42 - 1 = 41

3 0

2 years ago

Two planes, which are 2480 miles apart, fly toward each other. Their speeds differ by 70mph. If they pass each other in 4 hours,

faltersainse [42]

Answer: 345;275

Step-by-step explanation:

Lest say v_1 the speed of the slowest plane

v_2 the speed of the fasterst plane

$\Bigg\{\begin{array}{ccc}v_2-v_1&=&70\\4*v_2+4*v_1&=&2480\\\end{array} \right.\\\\\\\Bigg\{\begin{array}{ccc}v_2-v_1&=&70\\v_2+v_1&=&620\\\end{array} \right.\\\\\\\Bigg\{\begin{array}{ccc}2*v_2&=&690\\v_2+v_1&=&620\\\end{array} \right.\\\\\\\Bigg\{\begin{array}{ccc}v_2&=&345\\v_1&=&275\\\end{array} \right.\\\\\\$

5 0

3 years ago

There is a formula used in chemistry and physics that states that PV = nrt. Solve this formula for n

REY [17]

PV=NRTIf you want to solve that for n, remember that you can multiply or divide the whole equation by any number or expression as long as you do it to both sides. For example, if we divide both sides by R we get PVR=NRTorPVR=NTafter canceling R from both numerator and denominator on the right. Continue the process to solve for N.

4 0

3 years ago