Evaluating expressions with variables word problems Mathematics Assignment Help -

Evaluating expressions with variables word problems Mathematics Assignment Help. Evaluating expressions with variables word problems Mathematics Assignment Help.

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The expression

gives the perimeter of a square with a side length of

units.

What is the perimeter of a square with a side length of $dfrac5775$ units?

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)

Question 2 options:

1)	Becky made the error when she subtracted 8x

2)	Becky made the error when she divided by 40

3)	Tommy made the error when he added 4x

4)	Tommy made the error when he added 15

[supanova_question]

–2x – 13 = 8x + 7, which order of operations completely solves for x? Mathematics Assignment Help

Add 2x, then subtract 8x, lastly subtract 7

2)	Add 2x, then add 13, lastly divide by 10

3)	Subtract 8x, then add 13, lastly divide by –10

4)	Subtract 8x, then add 2, lastly add 13

[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/cm³, 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

gives the number of Indian rupees you receive when you exchange

at the local currency exchange.

How many Indian rupees do you receive when you exchange ?

[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)

Question 4 options:

1)	c = , c = 5

2)	c = , c = 50

3)	c = 3f; c = 18

4)	c = 3f; c = 2

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 OF₂(g) and 0.1200 mol of H₂O(g) and occupies a volume of 7.92 L. The following reaction takes place:

OF₂(g) + H₂O(g)O₂(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 OF₂(g) and 0.1200 mol of H₂O(g) and occupies a volume of 7.92 L. The following reaction takes place:

OF₂(g) + H₂O(g)O₂(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 C₂H₄(g) and 0.1600 mol of Br₂(g) and occupies a volume of 10.4 L. The following reaction takes place:

C₂H₄(g) + Br₂(g)CH₂BrCH₂Br(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