Hailey bought one TI30XIIS calculator and two packs of grid paper for Mrs. Smith's math class.  She paid $17.25. Larry bought two TI30XIIS calculators and one pack of grid paper for $27.00. SHOW WORK. What was the cost of one TI30XIIS calculator? What was the cost of one pack of grid paper?

Q: 1.00 mL is taken from a stock solution of concentration 8.47 g/L and added to a 10.0 mL volumetric…

A: Given, Stock solution: Concentration of the stock solution (C1) = 8.47 g/L Volume of the stock…

Q: what is 3mL in grams? what is 2.5 mL in grams? what is the conversion of 3mL of isoprntyl alcohol to…

A: Step 1: Conversion of mL to grams:As the compound is not mentioned for first 2 questions, it is…

Q: Recently the CDC changed the ‘level of concern’ in children with exposure to lead to 5 micrograms…

A: Since,

Q: Dr. Hellman writes an order for 300 mg of a Gl cocktail to be taken every 6 hours by a patient. The…

A: We have to calculate the mL of GI cocktail that has to be given to the patient.

Q: Chromium (III) sulfate is used for decorative plating. Determine the amount of time in hours needed…

A:

Q: I am taking up space botany in all the free time I have. I need 3.20 kiloflowers to make a space…

A: To convert 3.20 kiloflowers into nanoflowers use the following conversion: 1 kiloflowers = 1012…

Q: A lightbulb consumes energy at a rate of 80.0 joules per second. How long in seconds will it take…

A: rate of energy consumption = 80.0 J/secondEnergy consumption by bulb = 2.30105 Jtime required =?

Q: 7) How many kilograms is a 27 oz. bag of M&M's? 8) How many kilometers can a car travel on 19…

A: Since you have posted multiple questions, we are entitled to answer the first 3 only.

Q: To aid in the prevention of tooth decay, it is recommended that drinking water contain 0.800…

A: Concentration of recommended fluoride in drinking water = 0.800ppm Diameter of the tank = 4.00 x 102…

Q: It requires two sticks of butter to make a batch of 20 cookies. How much butter will it take to make…

A: Simple use of unitary method to solve this problem

Q: A certain rain cloud at an altitude of 1.80 km contains 3.20 x 10 kg of water vapor. How long would…

A:

Q: The recommended daily allowance of thiamine is 1.4mg per day. A patient is consuming 0.80mg. What…

A: Percentage can be determined by the given formula,

Q: milligrams of acetylsalicylic acid. Acute aspirin poisoning may occur if an individual ingests 150…

A: The question is based on the concept of dimensional analysis. we have been given mass of the child…

Q: What distance in miles can you drive in your new Prius hybrid, if your car gets 48.0 miles per…

A: The given question is based on dimensional analysis. Dimensional analysis is the analysis of the…

Q: You can calculate cost effectiveness using the following formula: volume of HCI neutralized per…

A: Given Brand X antacid 2 tablets/500 mg dose 40 tablets/container cost:$3.75/container To find Cost…

Q: Complete the following table. Round each of your answers to 3 significant digits. food cal energy…

A: Answer:This question is based on unit conversion where value of energy from one unit needs to be…

Q: A peanut butter sandwich provides about 1.1 ✕ 103 kJ of energy. A typical adult uses about 95…

A: The solution I have typed below.Explanation:Step 1:A peanut butter sandwich provides energy equals…

Q: You have 150.0 mL of a 0.821 M solution of Ce(NO3)² What mass (in grams) of Ce(NO₂), would be…

A: Mass of Ce(NO3)4 can be calculated by knowing the concentration and volume of solution.

Q: A year ago I had a barbeque on March 1st.  I invited 16 friends to join me.  I planned to serve each…

A: Given that, Total friends =16 It is planned to serve each 1 hot dog, 2 hamburgers and 3 cans of soda

Q: In an experiment, calcium carbonate reacted with different volumes of hydrochloric acid in water.…

A: Calcium carbonate reacts with hydrochloric acid to form the carbon dioxide gas.

Q: There are four sketches below. The first sketch shows a sample of Substance X. The three sketches…

A: Answer:- This question is answered by using the simple concept of physical change and the chemical…

Q: You can calculate the cost per dose using the following formula: cost of container number of doses…

A: Solution :    Antacids are the type of bases that are used to neutralize the acid which causes a…

Q: The formula for making a popular diaper rash paste requires mixing 40 g of zinc oxide powder and 80…

A: we have to calculate the cost of diaper rash paste

Q: A coal-burning power plant generates electrical power at a rate of 950 megawatts (MW), or 9.50 x 108…

A: The power is defined as the amount of energy transferred per unit time.

Q: A chemistry student weighs out 0.234 g of chloroacetic acid (HCH,CICO,) into a 250. mL volumetric…

A:

Q: How much will it cost to purchase chicken wire for a fence if 73 feet are needed and the fencing…

A: First we need to convert the information to the same units.1 yard is equal to 3 feet, so we can…

Q: Food safety guidelines recommends that a beef rib roast should cook for 23.0 minutes per pound based…

A: Given: Time taken to cook 1 pound of beef rib roast=23.0 minutes. The time taken to cook  5.17…

Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A: Energy can have several units like kJ, kcal, BTU

Q: If you mixed 8.0 tons of sand, 12 tons of rock, and 4.0 tons of cement to make concrete, what would…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: You have a stock of Rubisco at the concentration of 100 µg/mL. For your experiment you need 500 µL…

A:

Q: A chemistry student weighs out 0.146 g of chloroacetic acid (HCH,CICO,) into a 250. mL volumetric…

A:

Q: Tracy is receiving lanoxin every 8 hours. She weighs 63 kg. The dose range for this drug is 0.030 to…

A: Given weight of Tracy is 63 kg.  Dose range of lanoxin is 0.030 to 0.060 mg/kg every day. The…

Q: The density of mercury is 13.6 g/mL. Comment on how the density of mercury could cause environmental…

A: Here we have to comment how the density of mercury could cause environmental problems-

Q: Suppose you can climb stairs at a rate of 101 steps/min, which typically burns calories at a rate of…

A:

Q: An object is moving at a velocity of 11 km/s. Calculate the distance in miles traveled by the object…

A: We have to predict the distance in miles.

Q: A student measured the mass of an empty micropicnometer to be 2.000g. A student places 0.500mL of…

A: Part(a): Given that the mass of micropicnometer = 2.000 g Mass of micropicnometer + citric acid =…

Q: You're throwing a pizza party for 15 and figure each person will eat 4 slices how much is the pizza…

A: If we are provide the price of 1 orange, we can calculate the price of 5 oranges by…

Q: Assume the recommended single dose of an antihistamine for a child weighing 36–47 lbs is 1.50…

A:

Q: A typical baby aspirin contains 81 milligrams of acetylsalicylic acid. Acute aspirin poisoning may…

A: Mass of aspirin tablet = 81 mg Body weight of child = 25.0 lbs = 25.02.20=11.36 kg  Mass of aspirin…

Q: Calculate the energy needed to heat the cube of silver, with a volume of 10.0^3cm, from 12 degrees…

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.