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3 years ago

What is 7a^{2} - a^{2} + 16

Mathematics

2 answers:

ikadub [295]3 years ago

4 0

Answer: 6a^2 +16

Step-by-step explanation: Combining like terms (7 a^2 -a^2) you get 6a^2. That’s as much as it can be simplified without knowing the values of x because there are no more like terms. Hope this helps :)

prohojiy [21]3 years ago

3 0

Answer:can u pls help answer my question 4d+15 is greater than or equal to -1

Step-by-step explanation:

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75% of n is 45. n is what percent of 90?

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Answer:

66.67%

Step-by-step explanation:

75 /100 = .75

.75n = 45

45/.75 = 60

60 is n

60/90 = .666667

.666667 * 100 = 66.67%

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2 years ago

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30 ⅓ % of 3 plz help me

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Answer:

3 / 10 is the answer in fraction and 0.3 is the answer in decimal.

Step-by-step explanation:

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2 years ago

Square root of 27/4 rounded to the nearest tenth

saw5 [17]

Answer:

Square root of 27/4 rounded to the nearest tenth = 6.8

Step-by-step explanation:

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2 years ago

Two families go skiing on a Saturday. One family purchases three adult lift tickets and four lift tickets for $188. Another fami

Mnenie [13.5K]

Answer:using elimination to solve for x

9x +6y = 3*134 | Multiplying 1st equation by 3

-4x -6y = -2*146 | Multiplying 2nd equation by -2

5x = 3*134 - 2*146

5x = $110

x = $22, the cost of the youth ticket

Step-by-step explanation:This question Sets Up two equations with 2 unknowns

Let x and y represent the cost of the youth and adult ticket respectively

Question states***

3x + 2y = $134

2x + 3y = $146

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2 years ago