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4 years ago

Please solve the problem: 1/2(6x-4)=4x-9

1 answer:

8 0

$\frac{1}{2}(6x-4)=4x-9\ \ \ | multiply\ by\ 2\\\\
6x-4=8x-18\ \ \ | add\ 4\\\\
6x=8x-14\ \ \ | subtract\ 8x\\\\
-2x=-14\ \ \ | divide\ by\ -2\\\\
x=7\\\\Solution\ is\ x=7.$

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Patrick drank 3/4 liter of water Monday before jogging. He drank 4/5 liter of water after his jog. How much water did Patrick dr

AlexFokin [52]

Answer: 1¹¹/₂₀ litres

Step-by-step explanation:

The fractions need to be added.

Find a common multiple for them.

Common multiple = 20

Divide the multiple by the denominator of the fraction and multiply the numerator by the result you get:

$= \frac{15 + 16}{20} \\\\= \frac{31}{20} \\\\= 1\frac{11}{20}$

= 1¹¹/₂₀ litres

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3 years ago

WHAT IS 7.5% OF 80? ROUND TO THE NEAREST HUNDRETH

miss Akunina [59]

7.5% = 7.5 /100 = 0.075

80 * 0.075 = 6 ← answer

4 0

4 years ago

Read 2 more answers

Imagine the following: The distance from your seat to the door is 30 feet. Now imagine walking half that distance toward the doo

marissa [1.9K]

Answer:

no, you would never reach the door.

Step-by-step explanation:

by continuing a path of only half way, wil still be half way to the door with out completely reaching the end.

8 0

3 years ago

A fan oscillates 250* and can be felt from a distance of 4 feet away . To the nearest tenth what area of the room can feel the w

Vanyuwa [196]

Answer:

$A=256.67ft^2$

Step-by-step explanation:

From the question we are told that:

Fan oscillates $\theta=250$

Distance $d=>Raduis\ r=4 feet$

Since

$250\textdegree =180\textdegree +70\textdegree$

Generally the equation for the area A is mathematically given by

$Area=Area\ of\ semi\ circle\ + area\ of\ 70\textdegree sector$

$A=A_{sm}+A_{70\textdegree}$

Where

$A_{sm}=\frac{1}{2} \pi r^2$

$A_{sm}=\frac{1}{2} 3.14 4^2$

$A_{sm}=25.12ft^2$

$A_{70\textdegree}=\frac{1}{2}r^2 \frac{70\textdegree}{360\textdegree}$

$A_{70\textdegree}=\frac{1}{2}*4^2* \frac{70\textdegree}{360\textdegree}$

$A_{70\textdegree}=1.55ft^2$

Therefore the area A is given as

$A=A_{sm}+A_{70\textdegree}$

$A=25.12ft^2+1.55ft^2$

$A=256.67ft^2$

4 0

3 years ago

Perform the indicated operation

Semmy [17]

Answer:

B. 2 5/12

Step-by-step explanation:

2 3/4 - 1/3 = (2 +9/12) -(4/12) = 2 +(9-4)/12 = 2 5/12

3 0

3 years ago