Please help!!! Explain and correct the error in this calculation.

Mathematics

1 answer:

Wewaii [24]3 years ago

6 0

Answer:

for more math help use the app called connects

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AleksAgata [21]

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3 years ago

Please help me, I’ll mark your answer as brainliest!

wlad13 [49]

Answer:

question 1

y= 2x+13

question 2

y= 2x +13?

TBH I'm not sure

7 0

2 years ago

GCF of 35,5,70 is???

Vanyuwa [196]

Answer:

Because, five can go into 5, 35 and 70. Nothing else bigger can. If we went bigger we would be going over five.

Hope this helps :)

6 0

3 years ago

saw5 [17]

Answer:

$280

Step-by-step explanation:

Sell 24 pieces in 3 hours, so 8 pieces in 1 hour

in 7 hours 8*7 = 56 pieces, each for $5

56 piece cost 5^56 = $280

7 0

2 years ago

The ratio of the number of boys to the number of girls in a theater is 7:9. There are 12 more girls than boys. How many children

skelet666 [1.2K]

Ok, there is an equation you can use to solve it.

n is a number.

p is also a number, but different to n.

$\frac { 7 }{ 9 } \cdot \frac { n }{ n } =\frac { p }{ p+12 } \\ \\ \frac { 7 }{ 9 } \cdot 1=\frac { p }{ p+12 } \\ \\ \frac { 7 }{ 9 } =\frac { p }{ p+12 }$

$\\ \\ 7\left( p+12 \right) =9p\\ \\ 7p+84=9p\\ \\ 9p-7p=84\\ \\ 2p=84\\ \\ p=\frac { 84 }{ 2 } \\ \\ p=42$

Therefore:

<u></u> $\frac { 7 }{ 9 } \cdot \frac { n }{ n } =\frac { 42 }{ 42+12 } =\frac { 42 }{ 54 } =\frac { 7 }{ 9 } \cdot \frac { 6 }{ 6 } \\ \\ \therefore \quad n=6$

So all together there were 54 girls and 42 boys in the theatre.

54 + 42 = 96

That's 96 children in total. (Answer)

7:9 = 42:54

5 0

3 years ago