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lisa adds 2 tsp soda to 6 lb of flour how much soda should she add to 9 lbl of flour
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use proportinal relationships to solve the following problem riley needs to earn enough money to purchase a new jacket the one he likes best is 49.99 his state sales tax is 7.25 how much money does he need to earn round to the nearest dollar
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something costs 56.25 someone wants to leave a 35 tip how much money should they provide as tip round to nearest 100th
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something has 81500 seats its full on day someone belives only 79000 seats are occupy find the error of there prediction roudn to 100th of a percent
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someone wants to buy something at a fair they think they will need 30 dollars to purchase something they only spend 19.75 find the percent error in predection round to nearest whole number
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2 people mailed 275 things to people who predicted they would all attend only 265 of 275 people came percent error in predection roudn answer to nearest hundreth percent
Answered by GPT 3.5
To find the amount of soda that Lisa should add to 9 lb of flour, we can set up a proportion based on the ratio of soda to flour.

The amount of soda added to 6 lb of flour is 2 tsp.
Therefore, the ratio of soda to flour is 2 tsp / 6 lb.

Let x represent the amount of soda that Lisa should add to 9 lb of flour.
So the proportion can be set up as:

2 tsp / 6 lb = x tsp / 9 lb

To solve for x, we can cross multiply and then divide:

6 lb * x tsp = 2 tsp * 9 lb
6x = 18

Dividing both sides of the equation by 6:

x = 18 / 6
x = 3

Therefore, Lisa should add 3 tsp of soda to 9 lb of flour.
Answered by GPT 3.5
To find out how much money Riley needs to earn to purchase the jacket, we need to account for the sales tax as well.

First, we need to calculate the amount of sales tax on the jacket.

Sales tax = 7.25% of the price of the jacket
Sales tax = (7.25/100) * 49.99

Sales tax = 3.624775

Now, to find the total amount Riley needs to earn, we add the price of the jacket to the sales tax amount:

Total amount needed = Jacket price + Sales tax
Total amount needed = 49.99 + 3.624775

Total amount needed = 53.614775

Rounding this amount to the nearest dollar, Riley needs to earn approximately $54.
Answered by GPT 3.5
To calculate the tip amount, we'll multiply the cost of the item by the tip percentage, which is expressed as a decimal.

Tip amount = Cost of item * Tip percentage
Tip amount = $56.25 * (35/100)

Tip amount = $56.25 * 0.35
Tip amount = $19.6875

Rounding this amount to the nearest 100th, the tip should be approximately $19.69.
Answered by GPT 3.5
To find the error in the prediction, we need to calculate the difference between the actual number of occupied seats and the predicted number.

The actual number of occupied seats is 81500.
The predicted number of occupied seats is 79000.

Error = Actual number - Predicted number
Error = 81500 - 79000
Error = 2500

To calculate the error as a percentage, we divide the error by the actual number and multiply by 100.

Error percentage = (Error / Actual number) * 100
Error percentage = (2500 / 81500) * 100
Error percentage = 3.067 %

Rounded to the nearest hundredth of a percent, the error in the prediction is approximately 3.07%.
Answered by GPT 3.5
To calculate the percent error in the prediction, we need to find the difference between the predicted value and the actual value, divide it by the actual value, and then multiply by 100.

Predicted value = $30
Actual value = $19.75

Error = Actual value - Predicted value
Error = $19.75 - $30
Error = -$10.25

To find the percent error, we divide the absolute value of the error by the actual value and multiply by 100.

Percent error = (|Error| / Actual value) * 100
Percent error = (|-10.25| / $19.75) * 100
Percent error = (10.25 / $19.75) * 100
Percent error = 51.9

Rounded to the nearest whole number, the percent error in the prediction is 52%.
Answered by GPT 3.5
To calculate the percent error in the prediction, we'll find the difference between the predicted value and the actual value, divide it by the actual value, and then multiply by 100.

Predicted value = 275
Actual value = 265

Error = Actual value - Predicted value
Error = 265 - 275
Error = -10

To find the percent error, we divide the absolute value of the error by the actual value and multiply by 100.

Percent error = (|Error| / Actual value) * 100
Percent error = (|-10| / 265) * 100
Percent error = (10 / 265) * 100
Percent error ≈ 3.77

Rounded to the nearest hundredth of a percent, the percent error in the prediction is approximately 3.77%.