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Zanzabum
3 years ago
12

Help please Solving Systems Using Inspection

Mathematics
2 answers:
Kamila [148]3 years ago
6 0
The lines appear to be parallel. We can check this out by examining the
two equations, and we see that sure enough, both lines have the same
slope (1/2) so they're definitely parallel.  Parallel lines never intersect,
so this pair of equations has NO solutions.  NONE.  Zero. Bubkes. Nada.
pashok25 [27]3 years ago
3 0

The Other dude is correct I did the test

The answer is None

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A shopper buys 3 notebooks for $5 each. The percent sales tax is 8%. How much is the total sale?
Tamiku [17]

Answer:

$16.20

Step-by-step explanation:

3x5=15 15x.08=1.2 15+1.2=16.2

7 0
3 years ago
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Answer:

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7 0
2 years ago
It takes 36 nails to weigh one pound. How many nails would it take to weigh 7 wholes and 2/3 pounds?
o-na [289]
36 * 7  gives you the number of nails in the whole pounds
36 * 2/3 gives you the fraction part

7 * 36 = 252
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5 0
3 years ago
A cone and a sphere both have a radius of 1. If you fill the cone with liquid, and pour it into the sphere, it fits exactly. Wha
PtichkaEL [24]

Answer and Step-by-step explanation:

First, solve for the volume of the sphere, then solve for the height of the cone using the volume of the sphere (which is said to be equal to the volume of the cone) and the radius given.

<u>Volume formula of Sphere</u>

V = \frac{4}{3} \pi r^2

<u>Substitute 1 in for r</u>

\frac{4}{3} \pi (1)^2 = \frac{4}{3} \pi  = 4.189 = Volume

<u>Finding the Height of a Cone</u>

Volume formula for Cone: V = \pi r^2\frac{h}{3}

<u />

<u>Solve for </u><u><em>h</em></u>

Multiply both sides by 3, then divide by pi and r^2.

h = \frac{3V}{\pi r^2}

<u>Plug in the volume and the radius.</u>

h = \frac{3(4.189)}{\pi (1)^2}

<u>Simplify</u>

h = \frac{12.567}{\pi }

h ≈ 4

<u>4 is approximately the height.</u>

<u></u>

<u></u>

<u><em>#TeamTrees #PAW (Plant And Water)</em></u>

6 0
3 years ago
A crane is lowering a concrete block from a height of 270 feet above the ground at a constant rate of 2.5 feet per second. Which
iogann1982 [59]

The function would be h = 270 - 2.5s, where h is the height (in feet) and s it the time (in seconds) that has passed.

The 270 represents the initial value, which is given. We are told that the initial height of the block is 270 feet.

2.5s represents the feet that it has descended. We know the block is lowered at a rate of 2.5 feet per second. Multiplying this by s, the time, will give us how much it has descended.

7 0
3 years ago
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