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Pennies used to be made of copper and zinc and had a mass of 3.1g today pennies are made of copper plated zinc and have a mass of 2.5 G. A new pennies mass is what percent of an old pennies mass?
General
7 months ago
The formula for the sum of an infinite geometric series, s=a1/1-r, may be used to convert 0.23 to a fraction. What are the values of a1 and r?
General
7 months ago
In triangle JKL, If angle L is thirteen more than angle K and angle J is seven times more than six times angle K, find the measure of each angle.
General
7 months ago
Rachel earned $34 in 4 hours at her job today. She wants to know how much she could earn tomorrow if she works 10 hours at the same hourly rate.
General
7 months ago
the graph shows the solution to which system of inequalities
General
7 months ago
The equation of the quadratic relationship is y=−0.07(x−10.76)²+14.8. That equation references the coordinates (10.76,14.8). What is the significance of those coordinates?
General
7 months ago
steven buys 2.32 pounds of trail mix and twice as many pounds of dried fruit what is the total cost
General
7 months ago
motorboat travels 9 miles downstream (with the current) in 30 minutes. The return trip upstream (against the current) takes 90 minutes. Which system of equations can be used to find x, the speed of the boat in miles per hour, and y, the speed of the current in miles per hour? Recall the formula d = rt. 9 = 0.5(x – y) 9 = 1.5(x + y) 9 = 1.5(x – y) 9 = 0.5(x + y) 0.5 = 9(x – y) 1.5 = 9(x + y) 1.5 = 9(x – y) 0.5 = 9(x + y)
General
7 months ago
students in a cooking class made 4 1/2 quarts of soup.They served 4/5 of the soup to friends.Each serving is 3/5 quart.Hector incorrectly says that there were 3 3/5 serving of soup.What is the correct number of servings ? what did Hector do wrong ?
General
7 months ago
the average gas milage of a certain model car is 29.0 miles per gallon. if the gas mileages are normally distributed with a standard deviation of 0.6 miles per gallon, find the probability that a car has a gas mileage of between 28.8 and 29.2 miles per gallon.A:0.321 B:0.261C:0.851D:0.131
General
7 months ago
A walking path across a park is represented by the equation y= -3x - 6 . A new path will be built perpendicular to this path. The path will intersect at the point (-3 , 3) . Identify the equation that represents the new path . WILL MARK BRAINIEST!
General
7 months ago
Emma took a taxi from the airport to her house. She paid a flat fee of $5$5 plus $3.70$3.70 per mile. The fare came to $42$42. For Emma's taxi ride, which equation gives the correct distance (d)d in miles?
General
7 months ago
How do I solve this system by graphing y=-5/3x+3 and y=1/3x-3? pretty sure i messed this up
General
7 months ago
Michael cuts a piece of wood for a project . The first cut is show and can be represented by the equation y= - 1/3 x + 6 . The second cut needs to b parallel to the 1st it will pass the point (0, -2) what's the equation he cuts out ?
General
7 months ago
Three friends want to meet at a place that is the same distance from each of their houses. They draw a map and measure the approximate distances and angles, as shown. Which step should they take next to find a meeting place that is the same distance from each person’s house? A. Find the midpoint of the segments which connect their houses.B. Bisect each of the angles with vertices at their houses. C. Draw perpendicular lines through any point on the segments which connect their houses. D. Draw perpendicular line segments from each vertex to the opposite side.(ignore the veterans thing on the screenshot lol)
General
7 months ago
A cafe only sells two types of sandwiches, turkey, and steak. The cafe charges $4 for turkey sandwiches and $6 for steak sandwiches. Last month, the cafe sold $4524 worth of sandwiches. The cafe sold a total of 925 sandwiches.How many turkey sandwiches did they sell?
General
7 months ago
Given the following absolute value function sketch the graph of the function and find the domain and range.ƒ(x) = |x + 3| - 1
General
7 months ago
A cross- country runner runs 10 km in 40 minutes. what is his average speed
General
7 months ago
simplify- 3ab-9ab+7ab
General
7 months ago
PLEASE HELP MEEEEEEEEEEEEEEEYou invest $720 in an account that has an annual interest rate of 6.2%, compounded semiannually. How much money will be in the account after 5 years? Round your answer to the nearest whole number and include units.
General
7 months ago
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