3 years ago

What is the system of equations 6x-6y=42 7x+6y=-78

Mathematics

1 answer:

Makovka662 [10]3 years ago

6 0

X= -11.14
y= -18.14

Plug in and check for yourself but these answers worked for me.

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A video game store made a display of game console boxes show at the right. the length, width and high of each game console box i

yulyashka [42]

The volume would be 8ft because the formula for volume is length x width x height. Since they are all 2ft the formula would be 2ft x 2ft x 2ft.

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3 years ago

A combination lock requires a user to select three numbers to unlock it, where all three numbers are between 1 to 30, inclusive,

Sonbull [250]

Answer:

$\frac{1}{270}=0.00370$

Step-by-step explanation:

As the numbers are only between 1 and 30

Total number of possible combinations = 30×30×30 = 27000

If there are 100 attempts then

$\text{P (someone guesses correct)}=\frac{\text{Number of attempts}}{\text{Total number of possible combinations}}\\\Rightarrow \text{P (someone guesses correct)}=\frac{100}{27000}\\\Rightarrow \text{P (someone guesses correct)}=\frac{1}{270}=0.00370$

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3 years ago

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gtnhenbr [62]

Answer:

V=3456

Step-by-step explanation:

V= $a^{2}$ $\frac{h}{3\\}$

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2 years ago

29*47 in expanded algorithm

Tresset [83]

Hey there! :D

So for this problem, we would do 20+9 x 40 + 7 which equals 1,363.

Hope it helps! :D

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3 years ago

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At a basketball game, a vender sold a combined total of 161 sodas and hot dogs. The number of sodas sold was 43 more than the nu

Masja [62]

Let s be the soda and h be the hot dogs ,there are two equations here. By the problem s+h =161 s= h+43 ∴2h+43=161 so h=161-43/2 =59 so he sold 59 hot dogs and 59+43 =102 sodas.

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3 years ago