MATHEMATICS MIDDLE SCHOOL

Sammy had 30 minutes to do a three problem quiz. She spent 101/3 minutes on problem 1 and 54/5 minutes on problem 2. How much time did she have time for problem 3? Write your answer as a mixed number.

Answers

Answer 1

Answer:

He is left with $13(13)/(15)$ minutes for the last problem

Step-by-step explanation:

Given

Total time = 30 minutes

Time spent on problem 1: $10(1)/(3)$ minutes

Time spent on problem 2: $5(4)/(5)$ minutes

First of all, we will calculate the total time for 2 problems

$Time\ for\ two\ problems = 10(1)/(3)+5(4)/(5)\n= (31)/(3) + (29)/(5)\n= (155+87)/(15)\n=(242)/(15)$

The remaining time is:

$Time\ for\ problem\ 3 = Total\ time - Time\ for\ two\ problems\n= 30 - (242)/(15)\n= (450-242)/(15)\n=(208)/(15)\n= 13(13)/(15)$

Hence,

He is left with $13(13)/(15)$ minutes for the last problem

Keywords: Fractions, mixed fractions

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Help!!!!!! Eeeeek Ty

Whats bigger 81.9 or 91.91

Answers

It would be 91.91 because it is closer to 100, or any other greater number than 81.9 is. You could also look at it as, when you count, the number that you say first, is the smallest. So in this case, you'll say 81 before you say 91.

Hope you understand it in the way that I meant it. (:

What is 2 1/3 + 1 3/4 in the simplest form

Answers

49/12 is your answer.

2 1/3 + 1 3/4
Convert the mixed numbers into improper fractions
7/3 + 7/4
Multiply until both fractions have the same common denominator
28/12 + 21/12
Add the numerators but NOT the denominators
Final Answer: 49/12 or 4 1/12 *Both answers are equivalent to each other.

the gas tax in our town is 23 cents per gallon . if you buy 20 gallons of gas , how much tax do you pay?

Answers

Answer:

$4.60

Step-by-step explanation:

To find the amount of tax, multiply the number of gallons by the tax per gallon.

20*.23 = $4.60

What is 34.00 times 2.9 ?

Answers

98.6 is your answer.... Please mark this answer as the brainliest

The answer is 98.6 Hope i helped

Solve for y:-

10 + y = 28

Thanks!

Answers

To solve for y we have to use the INVERSE OPERATION of addition which is subtraction. Lets do it:-

10 + y = 28
y = ?
28 - 10 = y
28 - 10 = 18
y = 18

CHECK OUR WORK:-

10 + y = 28
y = 18
10 + 18 = ?
10 + 18 = 28
We were RIGHT!!!!

So, y = 18.

Hope I helped ya!! xD

Use the inverse operation to solve for x.

10 + y = 28

$10 + y = 28$

$y = 28 - 10$

Answer: $y = 18$

Y= 6x + 4 and y= 4x - 2

Answers

easy
sub since boht equal y, both are equal
6x+4=y=4x-2
6x+4=4x-2
minus 4x
2x+4=-2
minus 4
2x=-6
divide 2
x=-3
sub back
y=4x-2
y=4(-3)-2
y=-12-2
y=-14

solution in (x,y) form is
(-3,-14)

matrix or it can be y=4

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