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Norma-Jean [14]
3 years ago
14

Which of the following are steps in practical problem solving? Assign an identifying variable to the quantity to be found. Make

a guess at the value of the variable. Write a sentence stating conditions placed on the quantity. Check if the value is correct. Solve the sentence for the variable.
Mathematics
2 answers:
-BARSIC- [3]3 years ago
6 0
The steps involved in <span>practical problem solving are as follows:

</span><span>Assign an identifying variable to the quantity to be found.
</span>
<span>Write a sentence stating conditions placed on the quantity.
</span>
<span>Solve the sentence for the variable.</span>
k0ka [10]3 years ago
3 0

Answer:

1. Assign an identifying variable to the quantity to be found.

2. Write a sentence stating conditions placed on the quantity.

3. Solve the sentence for the variable.

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Step-by-step explanation:

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Determine the fraction of total interest owed using the rule of 78. After the six month of a 12 month loan, the numerator is: {(
Dima020 [189]

Answer:

The fraction of total interest owed is  \frac{57}{78}

The value of it to the nearest tenth is 73.1%

Step-by-step explanation:

Let us solve it using the rule of 78

∵ The loan = 12 month

∵ The numerator is after 6 month

- Substitute n by 1 in each bracket

∴ The numerator = {(1 + 11) + (1 + 10) + (1 + 9) + (1 + 8) + (1 + 7) + (1 + 6)}

∴ The numerator = {12 + 11 + 10 + 9 + 8 + 7}

∴ The numerator = {57}

∴ The numerator of the fraction is 57

∵ The denominator = {(n) + (n + 1) + (n + 2) + .......... + (n + 11)}

- substitute n by 1 in each bracket

∴ The denominator = {1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12}

∴ The denominator = {78}

∴ The denominator of the fraction is 78

The fraction of total interest owed is  \frac{57}{78}

Now find the value of the fraction

∵ The fraction = \frac{57}{78}

∴ Its value = 0.7307692308 × 100%

∴ Its value = 73.07692308%

- Round it to the nearest tenth

∴ Its value = 73.1%

The value of it to the nearest tenth is 73.1%

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3 years ago
On a trip you had to change your money from dollars to British pounds. You got 560 pounds for 800 dollars. What is a unit rate t
Oksanka [162]
If we got 560 pounds for 800 dollars and x pounds for 1 dollar, this means that x = 560*1/800 <=> x = 56/80. Performing the calulation we get that x = 0.7
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