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3 years ago

Find the measure of angle Y

Mathematics

1 answer:

Oksana_A [137]3 years ago

6 0

If all angles are equal it must be an equilateral triangle which means the measure of Y is 60°

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If a movie ticket cost $10 in 2016, what was its price in 1980

zaharov [31]

Answer:

It would be in the $3.30 or lower zone

Step-by-step explanation:

8 0

3 years ago

The outdoor furniture center buys wooden benches for $50 each. The furniture store owner adds a %200 markup to the cost of the b

vlada-n [284]

The answer is very simple:

$50 multiplied by 2 (Cause it's 200%) equals to $100
$50 multiplied by 1,2 (Cause it's 120%) equals to $60
Then, you just do the substractions, so you get $40.

Hope I helped u

7 0

3 years ago

HELP ASAP NEEED THE CORRECT ANSWER

Tatiana [17]

The right answer is Option A.

Step-by-step explanation:

Given,

Amount in Jason's account = $300

Bills paid = $\frac{1}{4}$

Remaining balance after bills = -$50

Let,

x be the amount of bills.

Amount in account - Bills paid*Amount of bills = Remaining balance

$300-\frac{1}{4}x=-50\\-\frac{1}{4}x+300=-50$

The equation $-\frac{1}{4}x+300=-50$ can be used to find x.

The right answer is Option A.

Keywords: equation, subtraction

Learn more about subtraction at:

#LearnwithBrainly

5 0

3 years ago

Please help!! :( if yah want brianleist!! Tyyyy!!! ^^

laila [671]

Answer:

Step-by-step explanation:

hope this helps !!

6 0

2 years ago

Use a matrix to solve the system:

Romashka-Z-Leto [24]

Answer:

(2.83 , 1 , 4)

Step-by-step explanation:

$2x+2y-z=4\\4x-2y-2z=2\\3x+3y-4z=-4\\$

Rewrite these equations in matrix form

$\left[\begin{array}{ccc}2&2&-1\\4&-2&-2\\3&3&-4\end{array}\right] \left[\begin{array}{ccc}x\\y\\z\end{array}\right]=\left[\begin{array}{ccc}4\\2\\-4\end{array}\right] \\$

we can write it like this,

$AX=B\\X=A^{-1}B$

so to solve it we need to take the inverse of the 3 x 3 matrix A then multiply it by B.

We get the inverse of matrix A,

$A^{-1}=\left[\begin{array}{ccc}7/15&1/6&-1/5\\1/3&-1/6&0\\3/5&0&-2/5\end{array}\right] \\$

now multiply the matrix with B

$X=A^{-1}B\\\\\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}7/15&1/6&-1/5\\1/3&-1/6&0\\3/5&0&-2/5\end{array}\right]\left[\begin{array}{ccc}4\\2\\-4\end{array}\right] \\\\\\\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}2.83\\1\\4\end{array}\right] \\$

4 0

3 years ago