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slava [35]
3 years ago
11

The school hiking club has completed 4 out of 5 hikes so far this year. They have hiked 4.6 miles, 3.7 miles, 5.1 miles, and 2.9

miles. If their goal is to hike 20 total miles, how many miles does the last hike need to be?
4.7 miles
3.7 miles
2.7 miles
1.7 miles
Mathematics
2 answers:
soldier1979 [14.2K]3 years ago
8 0

Answer:

3.7 miles

Step-by-step explanation:

you can count all hikes together and then you take it from 20

Viktor [21]3 years ago
6 0

Answer:

3.7 miles

Step-by-step explanation:

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31.438

Step-by-step explanation:

yan ppo ang tama sagot

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What answer i need fast
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5 0
3 years ago
The average age of staff in the maths department is 40.
pashok25 [27]

Answer:

Cerian is 28 years old

Step-by-step explanation:

The given parameters are;

The average age of the staffs in the mathematics department = 40

The number of staffs in the department = 7

The average age of Jill, Nicky and Wendy = 41

The average age of Andy, Alan and Cathy = 43

From the given parameters, we have;

The average age of the staffs in the mathematics department = (The sum total of the ages of the members of the math department)/(The number of staffs in the department)

Therefore;

40 = (The sum total of the ages of the members of the math department)/ (7)

From which we have;

The sum total of the ages of the members of the math department = 40 × 7 = 280

Which gives;

Jill's age + Nicky's age + Wendy's age + Cathy's age + Cerian's age + Alan's age + Andy's age = 280 years

The average age of Jill, Nicky and Wendy = 41

Given that Jill, Nicky, and Wendy make up 3 of the 7 members of staffs, we have;

The average age of Jill, Nicky and Wendy = (The sum total of the ages of Jill, Nicky, and Wendy)/(The number of staff Jill, Nicky, and Wendt make)

Therefore;

The sum total of the ages of Jill, Nicky, and Wendy = 41 × 3 = 123

Which gives;

Jill's age + Nicky's age + Wendy's age = 123 years

Similarly, the sum total of the ages of Andy, Alan, and Cathy = 43 × 3 = 129

Which gives;

Andy's age + Alan's age + Cathy's age = 129 years

Therefore;

Cerian's age = (Jill's age + Nicky's age + Wendy's age + Cathy's age + Cerian's age + Alan's age + Andy's age) - (Jill's age + Nicky's age + Wendy's age) + (Andy's age + Alan's age + Cathy's age)

∴ Cerian's age = 280 years - 123 years - 129 years = 28 years

6 0
3 years ago
Which expression is equivalent to
cestrela7 [59]

Answer:

Step-by-step explanation:

A

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What is the value of T?
Cerrena [4.2K]

Answer:

The value of T is 55°

Step-by-step explanation:

Using the theorem of parallel and equality,the angle of unknown angle equals to opposite one.

Or at least if you noticed,that angle is perpendicular,then 35+90=125;

180-125=55°

6 0
3 years ago
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