4 years ago

What is 20 dived 360 long division step by step

Mathematics

1 answer:

cluponka [151]4 years ago

6 0

Did you mean 360 divided by 20?

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4x-5y=-15 <br> 7x-2y=21 <br> X=<br> Y=

Helen [10]

Answer:

The values of x and y to the given equations are x=5 and y=7

Step-by-step explanation:

Given equations are $4x-5y=-15\hfill (1)$

$7x-2y=21\hfill (2)$

To solve the given equations by elimination method :

Multiply the equation (1) into 2 we get

$8x-10y=-30\hfill (3)$

Multiply the equation (2) into 5 we get

$35x-10y=105\hfill (4)$

Now subtracting the equations (3) and (4) we get

$8x-10y=-30$

$35x-10y=105$

_________________

$-27x=-135$

$x=\frac{135}{27}$

Therefore x=5

Now substitute the value of x=5 in equation (1) we get

4(5)-5y=-15

20-5y=-15

-5y=-15-20

-5y=-35

$y=\frac{35}{5}$

Therefore y=7

The values are x=5 and y=7

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3 years ago

you are standing at point b. point b is 16 feet from the center of the circular water storage tank and 15 feet from point A. AB

Jobisdone [24]

The points A and B and the center O of the circle form a right angle and AO = radius.
So by Pythagoras
16^2 = 15^2 + AO^2

AO = sqrt (16^2 - 15^2)

AO ( radius) = sqrt31 = 5,57 feet answer (to nearest hundredth)

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3 years ago

An artist sells her sculptures for $250. Each piece costs her $150 to make, and she spends $11000 per year for her studio and ot

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250x-150x-11,000>10,000

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a line with a slope of 1/10 passes through the point (0, 9). What is the equation in slope intercept form?

Nimfa-mama [501]

Answer:

y=1/10x+9

Step-by-step explanation:

i think, sorry if its wrong

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George is building a large model airplane in his workshop. If the door to his workshop is 3 ft wide and 6 1/2 ft high and the ai

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