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trasher [3.6K]
3 years ago
15

Help me please!!!!!!!!!

Mathematics
1 answer:
Delvig [45]3 years ago
3 0
The answer is 200\pi
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Is this right??? if not helpp
Nonamiya [84]
Yupz u b right cuz 8+9 is ur answer Don’t be so hard on yourself take it easy
7 0
3 years ago
What is 2906 to the nearest thousand
OlgaM077 [116]
It is equal to 3000 to the nearest thousandth

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3 years ago
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Masha biked 20km 20 minutes faster than Dasha biked 20km. Find the speed of each cyclist if one biked 2km/h faster than the othe
motikmotik

Answer:

  • 12 km/h and 10 km/h

Step-by-step explanation:

Let the speed of Masha = s, speed of Dasha = d

  • Distance = 20 km
  • Time difference = 20 min = 1/3 hr
  • Speed difference  = 2 km/h

<u>As per above info we get following equations:</u>

  • s = d + 2
  • 20/s + 1/3 = 20/d

<u>Substitute s and solve for d:</u>

  • 20/(d + 2) + 1/3 = 20/d

<u>Get rid of fraction by multiplying all terms by 3d(d + 2):</u>

  • 60d + d(d + 2) = 60(d + 2)
  • 60d + d² + 2d = 60d + 120
  • d² + 2d = 120
  • d² + 2d + 1 = 121
  • (d + 1)² = 11²
  • d + 1 = 11
  • d = 10

<u>Find s:</u>

  • s = 10 + 2 = 12

<u>The answer is</u>

  • Masha's speed 12 km/h and Dasha's speed 10 km/h
3 0
3 years ago
Plssssssssssssssssssssssssssssssssssssssssssssssss help 30 POINTS
GuDViN [60]

Answer:

500

Step-by-step explanation:

multiply all of them

3 0
2 years ago
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Joshua and his children went into a bakery and he bought $15 worth of donuts and cookies. Each donut costs $1.75 and each cookie
Natalija [7]

Answer:

Joshua bought 12 cookies & ABOUT 7 donuts.

Step-by-step explanation:

7 0
3 years ago
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