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3 years ago

Simplify the following expression: '5x - 8 + 3y + 10x - 8y'

Mathematics

1 answer:

monitta3 years ago

6 0

Answer:

-5x-8-11y

Step-by-step

Because you shift 10x to -10x and then 5x-10x = -5x

You leave the -8 the same

You do 3y to -3y and then do -3y -8y = -11y

Hence altogether you get, -5x -8 -11y

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Which of the following is the same as 8.4x10²

Marta_Voda [28]

Answer:

840

Step-by-step explanation:

8.4x10^2

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840

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3 years ago

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Basile [38]

Answer:

$x=8\frac34\ \,,\quad y=8\frac12$

Step-by-step explanation:

$\Delta TRS\sim \Delta LJK \quad\implies\quad \dfrac{|TR|}{|LJ|}=\dfrac{|RS|}{|JK|}=\dfrac{|ST|}{|KL|}\\\\\dfrac{4}{7}=\dfrac{5}{x}=\dfrac{6}{y+2}\\\\\\\dfrac{4}{7}=\dfrac{5}{x}\quad\implies\quad4x=5\cdot7\quad\implies\quad x=\dfrac{35}4=8\frac34\\\\\\\dfrac{5}{x}=\dfrac{6}{y+2}\quad\implies\quad 5(y+2)=6\cdot\dfrac{35}4\\\\5y+10=3\cdot\dfrac{35}2\\\\5y\ =\ \dfrac{3\cdot35}2-10\\ \div5\qquad\quad \div5\\\\y=\dfrac{3\cdot7}2-2=10\frac12-2=8\frac12$

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3 years ago

At a restaurant a meal used to cost $9, but a new owner decided to raise the price by 13

kari74 [83]

Answer:

$10.17

Step-by-step explanation:

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1 year ago

Alaina has $28 in her account. She wants to purchase a pair of shoes that costs $45. If Alaina makes the purchase, which integer

valentina_108 [34]

Answer:

The Integer is -17

Step-by-step explanation:

This is because you must subtract the cost of the shoes from her account

28 - 45 is equal to negative 17

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3 years ago

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Mazyrski [523]

Answer:

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Step-by-step explanation:

Rise over Run would give us the slope.

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The second graph does not go up or down, meaning 0, while it goes 1 to the right.

This means that 0/1 = 0.

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2 years ago