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4 years ago

(90 / 5) + (78 x 34)

Mathematics

2 answers:

harina [27]4 years ago

6 0

Answer:

90÷5 = 18

78×34 = 2652

: 18 + 2652 =

Ans 2670

Maslowich4 years ago

4 0

Answer:

(90 / 5) + (78 x 34) = 2670

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Evaluate 2x2 − 5y when x = -3 and y = 4.

KiRa [710]

2(-3)2 -5(4). -12 -20= -32. It's this because you plug -3 and 4 into x and y. Then if you answer it out it equals -32

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3 years ago

If ΔABC is an equilateral triangle with, AB = 2x + 17, BC = 6x - 19, AC = 4x-1, find x and the measure of each side

Soloha48 [4]

Answer:

$x=9, AB=BC=AC=35$

Step-by-step explanation:

Equilateral triangles have 3 congruent sides, so all 3 sides have the same length. Therefore, we know that $AB=BC=AC$ . We are given the lengths of all 3 sides in terms of $x$ , but we only need to set two of them equal to each other to solve for $x$ . Let's use $AB$ and $BC$ to solve for $x$ . We know that $AB=BC$ , $AB=2x+17$ , and $BC=6x-19$ . Therefore, we can write the following equation to solve for

$AB=BC\\2x+17=6x-19$ (Substitute given values into equation)

Solving for $x$ , we get:

$2x+17=6x-19\\2x+17-17=6x-19-17$ (Subtract $17$ from both sides of the equation to isolate constants)

$2x=6x-36$ (Simplify)

$2x-6x=6x-36-6x$ (Subtract $6x$ from both sides of the equation to isolate $x$ )

$-4x=-36$ (Simplify)

$\frac{-4x}{-4}=\frac{-36}{-4}$ (Divide both sides of the equation by $-4$ to get rid of $x$ 's coefficient)

$x=9$ (Simplify)

Therefore, $AB=2x+17=2*9+17=18+17=35$ , and $AB=BC=AC=35$ . Hope this helps!

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3 years ago

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3 years ago

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Adding them together and we get...

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We can see that we have 6 numbers.

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849 divided by 6 is...

141.5

That is the mean.

Please leave a rating and a thanks.

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Let number of ticket be x
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4 years ago