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Anarel [89]
4 years ago
10

A construction company needs to remove 4 1 6 tons of dirt from a construction site. They can remove 8 9 tons of dirt each hour.

What is the total number of hours it will take to remove the dirt
Mathematics
1 answer:
andre [41]4 years ago
8 0

Answer:4.674hours

Step-by-step explanation:

1hr-89tons

24hrs-xtons

X=24×89

X=2136tons

24hrs-2136tons

Yhr-416tons

Y=24×416\2136

Y=4.674hrs

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A single card is drawn from a standard 52 card deck.
Sliva [168]

Answer:

1 in 4,

Step-by-step explanation:

You should know that a standard 52-card deck is made up of four suits of 13 cards each. This means that there are 13 spades and 4 aces (the Ace of Spades is both). So the probability of drawing any spade is 1 in 4, and the probability of drawing any ace is 1 in 13.

7 0
4 years ago
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Brittany is working on getting in shape for tennis season. The coaches tell her she needs to run 2 km three times a week. If she
vredina [299]

Answer:

72 km

Step-by-step explanation:

We can use basic logic to find how many miles you run in 12 weeks.

If you run for 2 km 3 times a week, then you run 6 km per week because 2\cdot 3 = 6.

If you continue this for 12 weeks, that means you will have ran 12\cdot 6 km, which can simplify down to 72 km.

Hope this helped!

3 0
3 years ago
300 paper cups in a dispenser the cups are taken from dispenser at rate at rate of 40 cups per hour
svp [43]

Answer:

i dont know i dont understand the question

5 0
3 years ago
A mouthwash ad that asks the viewer if he or she has ever scared away a date because of bad breath tries to provoke
DerKrebs [107]
Playing on insecurities
8 0
3 years ago
70 POINTS!! AND BRAINLIEST HELPPPPP!!!
DerKrebs [107]

Answer:

  1. 3000 girls
  2. 38 fishes
  3. 37 points
  4. 115 marbles
  5. 19 gray coloured cars

Step-by-step explanation:

Let the unknown values be x

1.

30 class mates = 1 class room

18 girls in 1 classroom

18 girls in 30 classmates

x girls in 5000 class mates

18\:girls= 30\:students\\x\:girls = 5000\:students\\\\Cross\:Multiply\\\\30x = 90000\\\\Divide\:both\:sides\:by\:30\\\frac{30x}{30} = \frac{90000}{30}\\ \\x = 3000\\= 3000 girls

2.

2.5\:miles = 12 \:fishes\\8\:miles = x\:fishes\\\\Cross\:Multiply\\2.5x = 96\\\\Divide\:both\:sides\:of\:the\:equation\:by\:2.5\\\\\frac{2.5x}{2.5}=\frac{96}{2.5}\\  \\x = 38.4\\Approximately \: =38\:fishes

3.

8\:minutes = 14\: points\\21 \:minutes = x \:points\\\\Cross\:Multiply\\8x = 294\\\\\mathrm{Divide\:both\:sides\:by\:}8\\\frac{8x}{8}=\frac{294}{8}\\\\Simplify\\x=\frac{147}{4}\\\\x = 36.75\\\\Approximately\:= 37\:points

4.

32\:marbles = 5\:inches\\x\:marbles = 18\:inches\\\\Cross\:Multiply\\5x = 576\\\\\mathrm{Divide\:both\:sides\:by\:}5\\\frac{5x}{5}=\frac{576}{5}\\\\x=\frac{576}{5}\\\\x =115.2\\= 115=\:marbles

5.

2 \: gray\:colour= 15\:cars\\x\:gray= 140\:cars\\\\Cross\:Multiply\\\\15x = 280\\\\\mathrm{Divide\:both\:sides\:by\:}15\\\frac{15x}{15}=\frac{280}{15}\\\\Simplify\\x=\frac{56}{3}\\\\x =18.666\\Approximately ;\\19

6 0
4 years ago
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