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katen-ka-za [31]
2 years ago
15

Need help on 8 and 9 please!!

Mathematics
1 answer:
Georgia [21]2 years ago
3 0

Answer:

for question no. 8 there is a formula in coordinate geometry which i don't remembered .

but can help in solving question no. 9

<u>solution</u><u> </u><u>for</u><u> </u><u>9</u>

it is given that values varies directly that means

<u> </u><u>X1</u> = <u>X2</u><u> </u>

Y1 Y2 we have to find Y2

i.e. 9/5.4= -10/Y2

or Y2 × 9 = 5.4 × -10

Y2 = -54/9

Y2 = -5

Step-by-step explanation:

<em><u>hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>helped</u></em><em><u> </u></em><em><u>u</u></em><em><u> </u></em><em><u>buddy</u></em><em><u> </u></em><em><u>;</u></em><em><u> </u></em><em><u>)</u></em>

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Step-by-step explanation:

Hi to answer this question, first we have to calculate the discount amount:

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