Isabel got a prepaid debit card with $20 on it. For her first purchase with the card, she bought some bulk ribbon at a craft store. The price of the ribbon was 7 cents per yard. If after that purchase there was $17.13 left on the card, how many yards of ribbon did Isabel buy?
Select the correct answer. There are three cell phone models in a store. When selecting a new cell phone, 25% of the customers choose model A, 33% choose model B, and 32% choose model C. The remaining customers buy from an old collection on which the average profit is $50. If the average profit earned on models A, B, and C is $60, $75, and $40, respectively, what is the expected value of the profit earned on all models?
Write an equation for line L in point-slope form and slope-intercept form? L is perpendicular to y=5x Write an equation for the line L in point - slope form
please help. To convert to degrees Fahrenheit, use the formula F=95C+32, where C is the degrees in Celsius. Which is the first step to solve for Celsius if the temperature is 70 °F?
Mr. Dunston and Mr. Dolland spent $45 all together. Mr. Dunston and Ms. Campbell spent $65 all together. If Ms. Campbell spent 3 times as much as Mr. Dolland, how much did Mr. Dunston spend?
An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in Texas. He believes that the mean income is $28, and the standard deviation is known to be $5.5. How large of a sample would be required in order to estimate the mean per capita income at the 90% level of confidence with an error of at most $0.42? Round your answer up to the next integer.
The variable p represents number of presents. If it takes 10 feet of ribbon to make 1 bow on a present and 3 feet is used to practice trying the bow, the expression 10p + 3 can be used. If there are 7 presents, how much ribbon is needed? Ribbon is sold in 15 feet packages. How many do you need to buy?
Triangles T₁ and T2 are similar. What is the scale factor of the dilation, with the center of dilation at the origin, that maps T1 onto T₂?
