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lakkis [162]
3 years ago
6

Solve the equation: -2/5 n = -30 A. n=-75 B. n=-12 C. n=12 D. n=75

Mathematics
2 answers:
OLEGan [10]3 years ago
6 0
Assuming your equation is: -2/5n = -30

-2/5n = -30    <- We get rid of the "/5n" by multiplying each side by 5n
-2 = -30 * 5n
-2 = -150n
-1 = -75n
75n = 1

But this doesn't match up with any of your answers, so if you wouldn't mind giving me the equation again, i'll work it out

Sonbull [250]3 years ago
5 0
 two negatives make a positive, so the question is basically 2/5 x 30. 30/5 is 6, so 1/5 of 30 is 6. we want 2/5 so we double 1/5 and get 12. The correct answer is n.
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Find the miing value in the ratio table. Then write the equivalent ratio. Plum 14 42 Grape 7 3 24 The equivalent ratio are 14 :
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The equivalent ratio is 8 : 4.

And the missing values are as follows 21, 6 and 48.

Complete table be,

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Given, a ratio table

Plum     14   42   __   __

Grape    7    __    3    24

we have to find the missing values and the equivalent ratios.

in the first ratio,

Plum : Grape = 14 : 7 = 2 : 1

Now, in the second ratio,

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x = 21

Now, in the third ratio,

2 : 1 = __ : 3

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Now, in the forth ratio,

2 : 1 = __ : 24

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So, the equivalent ratio is 8 : 4.

And the missing values are as follows 21, 6 and 48.

Hence, the equivalent ratio is 8 : 4.

And the missing values are as follows 21, 6 and 48.

Complete table be,

Plum     14   42   6   48

Grape    7    21    3    24

Learn more about Ratios and Proportions here brainly.com/question/26974513

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