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3 years ago

2/3a - 1/6 = 1/3 Please I need help ASAP

Mathematics

1 answer:

denis-greek [22]3 years ago

6 0

Answer:

a=1

Step-by-step explanation:

2/3a - 1/6 = 1/3

+ 1/6 +1/6

------------------------------

2/3a = 4/6

-------- --------

2/3 2/3

a= 1

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musickatia [10]

Step-by-step explanation:

1 yard = 3 feet

1 foot = 12 inches

therefore,

100 yards = 100×3×12 inches = 3600 inches

again, 1 yard = 3 feet

8 ft = 8/3 = 2.67 yards = 2 2/3 yards

1 gallon = 8 pints

1 liter = 1000 milliliters (remember, "mili" means 1/1000).

therefore,

2.2 liters = 2.2×1000 = 2200 milliliters

again, 1 liter = 1000 milliliters

therefore

1 milliliter = 1/1000 liter

670 milliliters = 670 × 1/1000 liter = 670/1000 liter =

= 0.67 liter

1 kg (kilogram) = 1000 grams ("kilo" means 1000).

we have 3 layers.

each layer weighs (cake plus icing)

1/2 kg + 100 g = 500 g + 100 g = 600 g

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the additional candle weighs 250 g.

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1800 g + 250 g = 2050 g = 2.05 kg

area is 110 m².

1 m = 100 cm ("centi" means 1/100).

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110 × 10000 = 1,100,000 cm²

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1,100,000 / 200 = 11,000 / 2 = 5500 bricks

6 0

2 years ago

What is the circumference of<br>a circle with a radius of 21<br>cm?

Travka [436]

Answer:

131.95cm.

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Please help! I will mark as brainliest. <3

Ymorist [56]

Answer:

900

Step-by-step explanation:

set both options equal to each other so we know the intersection.

30000 + 20t = 21000 + 30t

now solve for t.

10t = 30000-21000

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2 years ago

Lucy had math and reading homework tonight. Lucy can solve each math problem in 5 minutes and she can read each page in 2.5 minu

drek231 [11]

Answer:

$x=18,y=6$ , graph is there for reference.

Step-by-step explanation:

Given,

$x$ is the number of math problem Lucy solved.

$y$ is the number of pages she read.

She can do each math problem in $5$ minutes, therefore she can solve $x$ number of questions into $5 \times x=5x$ minutes.

She can read each page in $2.5$ minutes, therefore she can read $y$ pages in 2.5y minutes.

As per given detail,

$5x+2.5y=105$ equation 1.

And,

It is given that number of math problems Lucy solved is 3 times the number of pages she read.

$x=3y$ equation 2.

We need to find $x$ and $y$ intercept of each of the equation to graph them.

For $x-intercept$ put y=0

We will get $x=\frac{105}{5} =21$

Thus the point is $(21,0)$

Let us find $y-intercept$ by assuming $x=0$

we get $y=\frac{105}{2.5} =42$

Thus the point is $(42,0)$

Join these two points.

Similarly considering the other equation $x=3y$

Here x-intercept would be at $y=0$

We will get $x=0$

Thus the point is $(0,0)$

Let us assume on more point, say $x=30$ , we get $y=10$

Thus the point is $(30,10)$

Join these two points.

We will get a point of intersection at $(18,6)$

Thus $x=18$ and $y=6$

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3 years ago

8y + 9<br><br> What is the variable term in the expression?

maksim [4K]

The variable in equations are always the letters so the variable in this equation is y

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3 years ago