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3 years ago

Please show the answer with the work, GodBless.

Mathematics

1 answer:

Yanka [14]3 years ago

8 0

Well, we know that y=1/2x+5 from the first equation. if we substitute that into the second equation, it becomes 2x + 1/2x +5 =1. solve for x. 2x+1/2x= -4, 2 1/2x=-4, x=-1.6. plug that in to one of the equations. 2(-1.6)+y=1, -3.2+y=1, y=-2.2. the solution is (-1.6, -2.2)

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before a renovation, a movie theater had 149 seats. After the renovation, the theater had 180 seats. what is the approximate per

liberstina [14]

180 - 149 = 31

x/100 *149 = 31

1.49x = 31

x= 31/1.46 = 20.81 %

5 0

3 years ago

1. You purchase a bag of chips that cost $4. The sales tax is 6.5% what will be the total cost.

Yuliya22 [10]

Answer:

the first one is 3.74 and the second one is 6%

its basic percent subtraction

Step-by-step explanation

6 0

3 years ago

Read 2 more answers

Can somebody help me with this?

Natasha_Volkova [10]

Step-by-step explanation:

Hey there!

By looking through figure, l and m are parallel lines and a transversal line passes through the lines.

Now,

7x + 12° = 12x - 28°( alternate angles are equal)

12°+28° = 12x - 7x

40° = 5x

$x = \frac{40}{5}$

Therefore, x = 8°

Now,

12x - 28° + 9y - 77 = 180° ( being linear pair)

12×8° - 28° + 9y -77° = 180°

96° - 28° + 9y - 77° = 180°

-9 + 9y = 180°

9y = 180° + 9°

y = 189°/9

Therefore, y = 21°

Therefore, X = 8° and y= 21° .

Hope it helps....

4 0

3 years ago

ILL MARK BRAINLIESTTTTT

zaharov [31]

Answer:

0.075 inches per year

Step-by-step explanation:

The average rate of change is measured as

( difference in diameter ) ÷ ( difference in years )

= ( 251 - 248 ) ÷ ( 2005 - 1965 )

= 3 inches ÷ 40 years

= 0.075 inches per year

7 0

3 years ago

Consider the sequence of steps to solve the equation: 5(x - 3) = 7x 2 Step 1 ⇒ 10(x - 3) = 7x Step 2 ⇒ 10x - 30 = 7x Step 3 ⇒ 3x

umka21 [38]

It is the division property because x or 1x is dividing the 10

7 0

3 years ago