2 years ago

Is this a proportional relationship

Mathematics

1 answer:

luda_lava [24]2 years ago

7 0

I think it is because it goes through the line tell me if I’m right

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The total charge on 7 particles is −42 units. All the particles have the same charge.

qwelly [4]

If they have the same charge
x+x+x+x+x+x+x=-42
7x=-42
x=-6
so to check our answer
-6-6-6-6-6-6-6=-42
-12-12-12-6=-42
-24-18=-42
-42=-42

5 0

4 years ago

Read 2 more answers

The variables y and x have a proportional relationship and y=7 when x=2 what is the value of x when y=21

liubo4ka [24]

Answer:

x=6

Step-by-step explanation:

Since y=7 when x=2, we can from here simplify and see that y=3.5 when x=1. If y=21, then we multiply 7 by 3 which is 21, and since we must keep a proportion, we must multiply 2 by 3 and get 6 as the answer.

4 0

3 years ago

Determine the INTEREST ONLY for $4,331.00 earning 5.5% for 4 years, compounded semi-annually.

forsale [732]

4,331 times 8 (semiannual for 4 yrs) = 34,648
34,648 + 5.5% = 36,553.64

to find interest:
36,553.64 - 34,648 = 1,905.64

THE INTEREST RATE IS $1,905.64

3 0

3 years ago

Rewrite y= (square root all) 9x+45 (non sqrt) -2 to make it easy to graph using a translation. describe the graph

iVinArrow [24]

Answer:

(i)

shifted left side by 5 units

(ii)

vertically stretch by 3 units

(iii)

shifted vertically downward by 2 units

Step-by-step explanation: