in 5 min, Peter completed 2 math problems. Yvonne says he did 3/5 of a problem each minute. is she correct? Explain.

2 answers:

3 0

No!
Because I don't know but I tried:
2/5= 0.4 and 3/5= 0.6, they are not equal so if Yvonne says he did 2/5 of a problem each minute, and then she will be correct!

alukav5142 [94]3 years ago

3 0

Ok well if you divide 5÷2 it equals 2.5 and that written as a fraction is 5/2 or 2 1/2 either way she isn't correct he would complete 5/2 of a problem or [2.5 or 2 1/2]

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Anna is a teacher at an elementary school. She purchased 73 tickets to take the first-grade children and some parents on a field

Svetllana [295]

She bought 54 child tickets and 19 adult tickets.

Step-by-step explanation:

No. of tickets purchased = 73

Cost of tickets = $771

Cost of one child ticket = $9

Cost of one adult ticket = $15

Let,

Child ticket = x

Adult ticket = y

According to given statement;

x+y=73 Eqn 1

9x+15y=771 Eqn 2

Multiplying Eqn 1 by 9;

$9(x+y=73)\\9x+9y=657\ \ \ Eqn\ 3\\$

Subtracting Eqn 3 from Eqn 2;

$(9x+15y)-(9x+9y)=771-657\\9x+15y-9x-9y=114\\6y=114\\$

Dividing both sides by 6;

$\frac{6y}{6}=\frac{114}{6}\\y=19$

Putting y=19 in Eqn 1

$x+19=73\\x=73-19\\x=54\\$

She bought 54 child tickets and 19 adult tickets.

Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

4 0

3 years ago

Make sure to use complete sentences in your answer 1.6084*10^3

Nikolay [14]

1.6084 * 10^3 simplifies to 1608.4

6 0

4 years ago

Im pulling my hair out with this problem my calculator simplified it to <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%2B%2F-%5Cs

Tamiku [17]

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