3 years ago

390 is 75% of what number?

Mathematics

1 answer:

guapka [62]3 years ago

7 0

390 is 75% of 520 You divide 390 by 75 to get one percent and then multiply by one hundred to get 100 percent

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Help plz:))) I’ll mark u brainliest

Papessa [141]

Answer:

25x = 75 (Because they are alternate interior angles)

=> x = 75/25

=> x = 3

So, x = 3

Because 25x is equal to 75, the two lines (u and v) are parallel

4 0

3 years ago

Read 2 more answers

It takes Amy twice as long to deliver papers as it does Nancy. How long would it take each girl to deliver the papers by herself

ANEK [815]

Answer:

so if it takes twice all long for amy as nacy that means

Amy takes 2/3 or 0.6(aprox)

Nacy takes 1/3 or 0.3(aprox)

Amy=24

Nacy=12

Hope This Helps!!!

3 0

2 years ago

Please help me....I really need help!!

scoundrel [369]

$\dfrac{c^2-4}{6c^4+15c^3}\div\dfrac{c^2+4c+4}{12c^3+30c^2}=\dfrac{c^2-2^2}{3c^3(2c+5)}\div\dfrac{c^2+2(c)(2)+2^2}{6c^2(2c+5)}\\\\_{\text{use}\ a^2-b^2=(a-b)(a+b)\ \text{and}\ (a+b)^2=a^2+2ab+b^2}\\\\=\dfrac{(c-2)(c+2)}{3c^3(2c+5)}\cdot\dfrac{6c^2(2c+5)}{(c+2)^2}=\dfrac{(c-2)}{c}\cdot\dfrac{2}{(c+2)}=\boxed{\dfrac{2(c-2)}{c(c+2)}}$