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katrin2010 [14]
4 years ago
11

Write an equation and solve. Round to the nearest hundredth where necessary. 19 is what percent of 40?

Mathematics
2 answers:
Ksju [112]4 years ago
5 0
The first one is B. idk the second


olya-2409 [2.1K]4 years ago
4 0

Step-by-step explanation:

(a) Let x% of 40 = 19

Therefore, \frac{x}{100} \times 40 = 19

                 \frac{4x}{10} = 19

                     x = \frac{190}{4}

                     x = 47.5

Thus, 47.5% of 40 = 19.


(b) It is given that \frac{5}{x} = \frac{4}{8}

                             x = \frac{5 \times 8}{4}

                                    x = 10

Thus, we can conclude that the value of x = 10.


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