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2 years ago

) Find the value of x. 3 A) 9 B) 10 C) 11 D) 12

Mathematics

1 answer:

valentinak56 [21]2 years ago

7 0

The answer is 12

because

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leonid [27]

2.49/6 = 0.415
3.32/8 = 0.415

unit rates are equal :)

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4 years ago

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Help me Graph -x -2y=4

Anastasy [175]

Answer: This is the graph for -x -2y=4

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3 years ago

Edward Nolan has room for 26 bedding plants in his garden. He can get pansies for $1.79 each, marigolds for $1.19 each, and zinn

Rufina [12.5K]

Answer:

(a) The minimum Edward would have to spend is $31.24

(b) The maximum Edward could spend is $33.34

Step-by-step explanation:

(a) Edward would spend a minimum of $31.24 if he gets either 10 zinnias, 8 pansies and 8 marigolds or 10 marigolds, 8 pansies and 8 zinnias.

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4 years ago

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Write the linear system:

notsponge [240]

Answer:

(See explanation for further details).

Step-by-step explanation:

C) The linear system is:

$(-1)^{2} \cdot a + (-1)\cdot b + c = 5$

$c = - 4$

$(4)^{2}\cdot a + (4)\cdot b + c = 0$

After some algebraic handling:

$a - b + c = 5$

$c = -4$

$16\cdot a + 4\cdot b + c = 0$

By direct substitution:

$a - b - 4 = 5$

$16\cdot a + 4\cdot b - 4 = 0$

$a - b = 9$

$4\cdot a + b = 1$

$a = 9 + b$

$4\cdot (9+b)+b = 1$

$36 + 5\cdot b = 1$

$5\cdot b = -35$

$b = -7$

$a = 2$

D) The parameter values are: $a = 2$ , $b = -7$ , $c = -4$

E) The quadratic equation is $y = 2\cdot x^{2} - 7\cdot x -4$

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3 years ago

Solve for k. 8k 2m = 3m k

Paha777 [63]

<span>Simplifying 8k + 2m = 3m + k Reorder the terms: 8k + 2m = k + 3m Solving 8k + 2m = k + 3m Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-1k' to each side of the equation. 8k + -1k + 2m = k + -1k + 3m Combine like terms: 8k + -1k = 7k 7k + 2m = k + -1k + 3m Combine like terms: k + -1k = 0 7k + 2m = 0 + 3m 7k + 2m = 3m Add '-2m' to each side of the equation. 7k + 2m + -2m = 3m + -2m Combine like terms: 2m + -2m = 0 7k + 0 = 3m + -2m 7k = 3m + -2m Combine like terms: 3m + -2m = 1m 7k = 1m Divide each side by '7'. k = 0.1428571429m Simplifying k = 0.1428571429m</span>

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3 years ago