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Zinaida [17]
3 years ago
5

A geologist have two rocks on a scale that weighs 2 1/2 lbs together rock a was 1/7 of a the total weight how much did rock a we

ight
Mathematics
1 answer:
oee [108]3 years ago
4 0
2/35, just ask your calculator what is one seventh of two and one half.<span />
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Write the equation of the line in Point-Slope Form with a slope of 2/3 and
baherus [9]

Answer:

y=2/3+4

Step-by-step explanation:

the formula is y=mx+b. b is 4 and m is your slope.

3 0
2 years ago
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Suppose y varies inversely with x. Write an equation if y=7 when x=-4
luda_lava [24]

Answer:

y = -28 ÷ x

Step-by-step explanation:

The standard format of a inversely proportional equation goes by the format of y = k ÷ x. The question asks us to write an equation if y = 7 when x = -4 and y varies inversely with x.

So we substitute the values y = 7 and x = -4 in the equation y = k ÷ x

K = constant, we have to work this out

7 = k ÷ -4

7 × - 4 = k

k = - 4 × 7

k = -28

k = -28 So then we put this back into the original y = k ÷ x to find our final equation which is y = -28 ÷ x

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3 years ago
If x - 12y= -210 and x -6y=90, then x=
Genrish500 [490]

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Step-by-step explanation:

y = -20 by using process of elimination substitute y as -20 in either of the equations you get -30 for x

5 0
2 years ago
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±√121 what is the answer
HACTEHA [7]

Answer:

±11 is the answer........

6 0
3 years ago
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line m passes through point (-2,-1) and is perpendicular to the graph of y=-2/3x+6. Line n is parallel to line m and passes thro
puteri [66]

Answer:

Hello...... here is a solution :

1 -  

Hello:

the   equation of "m" is : y = ax+b

the slope is a : a×(- 2/3) = -1......( perpendicular to a line : y=-2/3x+6 when the slope is -2/3 )

a = 3/2          

the line " n" that passes through (4, - 3) and  parallel to line "m" :  

when the slope is 3/2 ( same slope )

the equation in slope-intercept form of the line" n" is :

 y – (-3)= (3/2)(x – 4)







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3 years ago
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