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Triss [41]
2 years ago
6

9/7 + a = 13/2 What does 'a' equal.

Mathematics
2 answers:
Minchanka [31]2 years ago
8 0

Answer:

a=73/14

Step-by-step explanation:

9/7=18/14, 13/2=91/14

91/14-18/14=73/14

katovenus [111]2 years ago
6 0

Answer:

73/14

Step-by-step explanation:

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A bookstore costs $96 a day to keep open, and it spends $12 for each book that it sells. If each book sells for $18, what is the
asambeis [7]

Answer: The break even point is when they have sold 16 books and have made $288

Step-by-step explanation:  The costs are modeled in the equation y = 12x + 96.  x is the number of books sold.

The earnings are modeled by he equation y = 18x.

Substitute 18x for y and solve for x.

18x = 12x + 96  Subtract 12x from both sides.

6x = 96 Divide both sides by 6

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Substitute into the original equations to solve  for y

y = 12(16) + 96

y = 192 + 96

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7 0
2 years ago
Factor f(x) = 15x^3 - 15x^2 - 90x completely and determine the exact value(s) of the zero(s) and enter them as a comma separated
Illusion [34]

Answer:

x=-2,0,3

Step-by-step explanation:

We have been given a function f(x)=15x^3-15x^2-90x. We are asked to find the zeros of our given function.

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15x^3-15x^2-90x=0

Now, we will factor our equation. We can see that all terms of our equation a common factor that is 15x.

Upon factoring out 15x, we will get:

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Now, we will split the middle term of our equation into parts, whose sum is -1 and whose product is -6. We know such two numbers are -3\text{ and }2.

15x(x^2-3x+2x-6)=0

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15x=0\text{ (or) }(x-3)=0\text{ (or) }(x+2)=0

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\frac{15x}{15}=\frac{0}{15}\text{ (or) }x-3=0\text{ (or) }x+2=0

x=0\text{ (or) }x=3\text{ (or) }x=-2

Therefore, the zeros of our given function are x=-2,0,3.

7 0
3 years ago
H over 3 plus 16 equals 18
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Answer:

If you're looking for H it could be 6

Step-by-step explanation:

bc 6/3+16=18 so 6/3=2 so 2+16=18

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