Mathematics, 30.06.2020 07:01 connerwoodle8941

Chris buys 8 more Ninja Turtles than Star Wars action figures. The Ninja Turtles cost $7 each and the Star Wars cost $9 each. Write an expression to model this situation, using S for Star Wars.

Answers: 1

Show answers

Answers

Answer from: lwaites18

Total Cost, C=$(16S +56)

Step-by-step explanation:

Chris buys 8 more Ninja Turtles than Star Wars action figures.

Cost of each Ninja Turtle = $7

Cost of each Star Wars = $9

Let number of Star Wars bought = S

As per question statement, number of Ninja Turtles bought = S+8

Cost of 'S' number of Star Wars = Number of Star Wars bought $\times$ cost of each Star Wars

Total cost of Star Wars bought = S $\times$ 9 or $9S

Similarly, Cost of 'S+8' number of Ninja Turtles = Number of Ninja Turtles bought $\times$ cost of each Ninja Turtles

Total cost of Ninja Turtles bought = (S+8) $\times$ 7 or $(7S +56)

Total Cost of the purchase = Total cost of Star Wars Bought + Total cost of Ninja Turtles bought

Total Cost of the purchase, C = 9S + (7S +56)

$\Rightarrow C=\$(16S +56)$

Answer from: Quest

do you have a picture of the table

Answer from: Quest

starting with:

5 + x - 12 = 2x - 7

5 + x - 12 - x = 2x - 7 - x (subtract x from both sides)

5 - 12 = x - 7 (combine and cancel x's from both sides)

5 - 12 + 7 = x - 7 + 7 (add 7 to both sides)

0 = x (add numbers together on both sides)

so in order for the equation to be true, x must be 0.

trying x = -0.5

5 + x - 12 = 2x - 7 (original equation)

5 + -0.5 - 12 = 2(-0.5) - 7 (plug in value of x)

5 + -0.5 - 12 = -1 - 7 (did multiplication)

-7.5 = -8 (did addition on both sides)

since -7.5 is obviously not equal to -8, the value of -0.5 for x is wrong.

trying x = 0

5 + x - 12 = 2x - 7 (original equation)

5 + 0 - 12 = 2(0) - 7 (plug in value of x)

5 + 0 - 12 = 0 - 7 (did multiplication)

-7 = -7 (did addition on both sides)

since -7 equals -7, that demonstrates that the value of 0 for x is correct.

trying x = 1

5 + x - 12 = 2x - 7 (original equation)

5 + 1 - 12 = 2(1) - 7 (plug in value of x)

5 + 1 - 12 = 2 - 7 (did multiplication)

-6 = -5 (did addition on both sides)

since -6 is obviously not equal to -5, the value of 1 for x is wrong.

Another question on Mathematics

Mathematics, 21.06.2019 16:00

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

Answers: 2

Answer

Mathematics, 21.06.2019 17:50

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

Answers: 1

Answer

Mathematics, 21.06.2019 18:30

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Answers: 2

Answer

Mathematics, 21.06.2019 23:30

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7

Answers: 2

Answer

You know the right answer?

Chris buys 8 more Ninja Turtles than Star Wars action figures. The Ninja Turtles cost $7 each and th...

Questions

Mathematics, 28.09.2020 18:01

which sentence is punctated correctly? the badger sleeps in a burrow during the hottest part of the day...

Mathematics, 28.09.2020 18:01

Choose the equation that represents the line that passes through the point (6, −3) and has a slope of one half. y equals one half times x...