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docker41 [41]
2 years ago
9

14. Danny works part-time at Tom's Toy Store. He

Mathematics
1 answer:
jarptica [38.1K]2 years ago
5 0

Answer:

  • 21 hours in May, 63 hours in June

Step-by-step explanation:

<h3>Set up equations</h3>
  • m - May, j - June
  • m + j = 84
  • m = 1/3j
<h3>Solve by substitution, fin the value of j</h3>
  • 1/3j + j = 84
  • 4/3j = 84
  • j = 84*3/4
  • j = 63
<h3>Find m</h3>
  • m + 63 = 84
  • m = 84 - 63
  • m = 21
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liberstina [14]

Answer:

its probly 50 i might be wrong tho.

Step-by-step explanation:

7 0
3 years ago
Help me with this please!!!!!!!!!!!!!
Mademuasel [1]

Answer:

1mm

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3 years ago
If one acute angle of a right triangle measure 37 what's the measure of the other acute angle
Ghella [55]

53°

Step-by-step:

- All angles in a triangle add up to 180°.

- Since your triangle is a right angle triangle, one of the angles are 90°.

- You already know another one, 37°.

- All you have to do to find the last one is to subtract the two you already know from 180.

180 - (90+37)

= 180 - 127

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The measure of the last angle is 53°.

5 0
3 years ago
An insect crawls up 5cm every second on a 6cm vertical rod and then falls down 2cm over the next second. How many seconds will i
makkiz [27]

Answer:

3 seconds

Step-by-step explanation:

It's quite simple. First, add 5cm to the progress of the insect, counting it as 1 second. Then subtract 2cm because it falls over the next second, thus taking another second. Then finally, plus 5cm, making it 3 seconds. It's not 4 seconds because at 3 seconds it had already reached the top.

If I didn't clear everything or messed up, please comment.

3 0
3 years ago
The police department uses a formula to determine the
laiz [17]

9514 1404 393

Answer:

  78.71 mph

Step-by-step explanation:

You're looking for the solution to ...

  d = 88

  0.0015r^2 +r = 88

  0.0015r^2 +r -88 = 0

Using the quadratic formula*, we find ...

  r = (-1 +√(1² -4(0.0015)(-88)))/(2×0.0015)

  r = (-1 +√1.528)/0.003 = 0.236123/0.003 = 78.7077

The speed of the car was about 78.71 mph.

_____

* The quadratic formula will also give a negative answer of about -745 mph, which is not relevant to the situation.

8 0
2 years ago
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