Harold walks 3/4 mile in each 5/6 hour. Calculate Harold's unit rate. Explain how you found your answer.


Answer 1
Answer: To solve this problem, you must apply the proccedure shown below:

 1. The problem gives the following information: Harold walks 3/4 miles in each 5/6 hours. Therefore, you have to divide  3/4 miles by 5/6 hours, as below:

 unit rate=(3/4)(5/6)
 unit rate=(3x6)(4x5)
 unit rate=18/20 

 3. When you simplify, you obtain:

 unit rate=9/10

 4. Therefore, as you can see, the answer is: Harold's unit rate is 9/10.

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Victoria has $1.90 worth of nickels and dimes. She has 2 more nickels than dimes.Write a system of equations that could be used to determine the number of nickels
and the number of dimes that Victoria has. Define the variables that you use to write
the system.





Step-by-step explanation:

One nickel is worth $0.05, so n nickels are worth 0.05n. One dime is worth $0.10, so dd dimes are worth 0.10d.The total 0.05n+0.10d equals $1.90:


Since there are 2 more nickels than dimes, there are more nickels, so if we add 2 to the number of dimes, we will get the number of nickels, meaning nn equals d+2.d+2.


Final answer:

From the problem, we create a system of equations that represent the value and quantity of nickels and dimes Victoria has. The system is: 0.05N + 0.10D = 1.90 and N = D + 2, where N represents nickels and D represents dimes.


The problem is about finding the number of nickels and dimes Victoria has. To do this, we will use a system of equations. We'll define N as the number of nickels and D as the number of dimes.

The first equation is based on the total value: since a nickel is worth $0.05 and a dime is worth $0.10, Victoria's coins add up to $1.90 - hence 0.05N + 0.10D = 1.90

The second equation is based on the quantity of coins: Victoria has 2 more nickels than dimes - hence N = D + 2.

Therefore, the system of equations is:

  • 0.05N + 0.10D = 1.90
  • N = D + 2

Learn more about System of Equations here:



Shelley is building a brick wall that needs to be 1.57 meters tall. So far, the wall is 1.54meters tall, How much taller does the brick wall need to be?



0.03 m

Step-by-step explanation:

End height:  1.57 m

Current height:  1.54 m

Difference:  0.03 m

Wall must be 0.03 m taller than it is now.

I need help with this please ( I’m not sure if I should use the a^2+b^2=c^2)



Do not use a^(2) + b^(2) = c^(2) that's to solve the hypotenuse of a triangle.

The difference is 31 cm³

Step-by-step explanation:

To solve the volume a cube it's a³

5.7³ = 185.193

I'm assuming to round to the nearest whole number so the difference would be

216 - 185 = 31

What is the sum of 2/6


the sum of two and six is eight

What percent is equivalent to Two-fifths?Possible Answers...


The percent that is equivalent to two-fifths is 40%. The correct option is 40%.

To determine the percent equivalent to two-fifths, we need to convert the fraction into a percentage.

The fraction two-fifths can be written as 2/5. To convert this fraction to a percentage, we divide the numerator (2) by the denominator (5) and multiply the result by 100.

2/5 x 100

= 0.4 x 100

= 40%

Therefore, the percentage equivalent to two-fifths is 40%.

Among the provided options:

0.4% is incorrect. It represents four-tenths of a percent, not 40%.

2.5% is incorrect. It represents two and a half percent, not 40%.

25% is incorrect. It represents one-fourth or 25%, not 40%.

40% is the correct answer, as explained above.

Hence, the option that represents the percent equivalent to two-fifths is 40%.

To learn more about the percentage;





Step-by-step explanation:

2/5= 4/10

4/10= 40%

Zacharias and paz together have $756.80. If Zacharias has $489.50, how much does paz have? Write and solve addition equation to find how much money belongs to paz


489.50+ x = $756.80.

-489.50. -489.50

X= 267.30