Evaluating expressions with variables word problems Mathematics Assignment Help. Evaluating expressions with variables word problems Mathematics Assignment Help.
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The expression
Evaluating expressions with variables word problems Mathematics Assignment Help[supanova_question]
Becky and Tommy are asked to solve –4x – 25 = 8x + 15. Identify where one of the Mathematics Assignment Help
Becky

Tommy

–4x – 25 = 8x + 15
–4x – 25 – 8x = 8x + 15 – 8x –12x – 25 = 15 12x – 25 + 25 = 15 + 25 –12x = 40 
–4x – 25 = 8x + 15
–4x – 25 + 4x = 8x + 15 + 4x –25 = 12x + 15 –25 – 15 = 12x + 15 – 15 –40 = 12x 
(1 point)
[supanova_question]
–2x – 13 = 8x + 7, which order of operations completely solves for x? Mathematics Assignment Help
[supanova_question]
The substance alpha chromium is found to crystallize in a cubic lattice, with an Science Assignment Help
The substance alpha chromium is found to crystallize in a cubic lattice, with an edge length of 871.7 pm. If the density of solid alpha chromium is 7.561 g/cm^{3}, how many Cr atoms are there per unit cell?
Your answer should be an integer: atoms
[supanova_question]
Evaluating expressions with variables word problems Mathematics Assignment Help
The expression
[supanova_question]
[supanova_question]
The number of cars (c) in a parking lot increases when the parking fee (f) decre Mathematics Assignment Help
Fee

Cars

20

15

30

10

(1 point)
The number of cars (c) in a parking lot increases when the parking fee (f) decre Mathematics Assignment Help[supanova_question]
A sample of carbon dioxide gas has a density of g/L at a pressure of 1.36 atm a Science Assignment Help
A sample of carbon dioxide gas has a density of g/L at a pressure of 1.36 atm and a temperature of 56 °C.
Assume ideal behavior.
[supanova_question]
A sample of gas contains 0.1200 mol of OF2(g) and 0.1200 mol of H2O(g) and occup Science Assignment Help
A sample of gas contains 0.1200 mol of OF_{2}(g) and 0.1200 mol of H_{2}O(g) and occupies a volume of 7.92 L. The following reaction takes place:
OF_{2}(g) + H_{2}O(g)O_{2}(g) + 2HF(g)
Calculate the volume of the sample after the reaction takes place, assuming that the temperature and the pressure remain constant.
L
[supanova_question]
A sample of gas contains 0.1200 mol of OF2(g) and 0.1200 mol of H2O(g) and occup Science Assignment Help
A sample of gas contains 0.1200 mol of OF_{2}(g) and 0.1200 mol of H_{2}O(g) and occupies a volume of 7.92 L. The following reaction takes place:
OF_{2}(g) + H_{2}O(g)O_{2}(g) + 2HF(g)
Calculate the volume of the sample after the reaction takes place, assuming that the temperature and the pressure remain constant.
L
[supanova_question]
A sample of gas contains 0.1600 mol of C2H4(g) and 0.1600 mol of Br2(g) and occu Science Assignment Help
A sample of gas contains 0.1600 mol of C_{2}H_{4}(g) and 0.1600 mol of Br_{2}(g) and occupies a volume of 10.4 L. The following reaction takes place:
C_{2}H_{4}(g) + Br_{2}(g)CH_{2}BrCH_{2}Br(g)
Calculate the volume of the sample after the reaction takes place, assuming that the temperature and the pressure remain constant.
[supanova_question]
Evaluating expressions with variables word problems Mathematics Assignment Help
Evaluating expressions with variables word problems Mathematics Assignment Help