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3 years ago

1.) Jimmy has rowed his canoe 3/8 of the length of the course. He has rowed 60 meters. How long is the entire course?

Mathematics

2 answers:

natta225 [31]3 years ago

8 0

Answer:

1. is 160 meters 2. 18 pages

Step-by-step explanation:

1. since 60 meters is 3/8 you divide 60 by 3 and get 20 meters next you multiply 20 by 8 and get 160 meters

2. 15 pages=5/6 so you divide 15 by 5 and get 3 next you multiply 3 by 6 which equals 18 pages

Step2247 [10]3 years ago

3 0

Answer:

1. The entire course is 160 meters :) 2. Her essay is 18 pages long.

Step-by-step explanation:

1. The first step is to divide 60 by 3. That makes 20. So 20 is 1/8 of the entire course. Then you multiply 20 by 8 and you have 160. That makes the whole course 160 meters long.

You use the same steps for 1. to solve this one too!

2. The first step is to divide 15 by 5. That makes 3. So, 3 is 1/6 of the essay. Then you multiply it by 6. That makes 18. There are 18 pages in the essay. Hope this helped.

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A freight train completes its journey of 150 miles 1 hour earlier if its original speed is increased by 5 miles/hour what is the

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<span>A freight train completes its journey of 150 miles 1 hour earlier if its original speed is increased by 5 miles/hour. What is the train’s original speed?
***
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..
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3 years ago

How do i solve for <br> (2x/5)+1=13/5

NNADVOKAT [17]

Answer:

x = 4

Step-by-step explanation:

$\frac{2x}{5} +1 = \frac{13}{5}$
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3 years ago

A store sells Brazilian coffee for $10 per lb. and Columbian coffee for $14 per lb. If the store decides to make a 150-lb. blend

Artemon [7]

Answer:

The store should use 112.5 pounds of Brazilian coffee and 37.5 pounds of Colombian cofee.

Step-by-step explanation:

Let "b" be the amount of Brazilian coffee, in pounds, required for the blend and "c" the amount of Colombian coffee required, in pounds.

Since there are two unknown variables a two-equation system is needed to solve the problem, we can set up one equation for weight and another for price as follows:

$b+c=150\\10*b+14*c=11*150$

Solve for "c" by multiplying the first equation by -10 and adding it to the second one:

$b+c=150\\10b+14c -10b-10c=11*150 -(10*150)\\4c=150\\c = 37.5$

Now, solve for b by replacing the value obtained into the first equation

$b+c=150\\b= 150 - 37.5\\b=112.5$

The store should use 112.5 pounds of Brazilian coffee and 37.5 pounds of Colombian cofee.

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3 years ago