Chris and Lisa went shopping and spent a total of $25.50. Lisa spent $13.50 more than what Chris spent. How much did Lisa spend?

Answers

Answer 1

Answer: The answer is in the second attachment.

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The Area of a rectangular patio is 5 5/8 square yards,and it's length is 1 1/2 yards.What is the patio's width,in yards?

Answers

Take both mixed numbers (a whole number plus a fraction) and turn them into improper fractions ( a numerator (top number) bigger than the denominator (bottom number). To do this, multiply the denominator by the whole number, and add the result to the numerator.
5 5/8 will become 45/8
1 1/2 will become 3/2.
Area is length* width, so width would be Area/ length. So 45/8 is the area and 3/2 is the length. Now you have (45/8)/(3/2). To divide fractions, take the second fraction and flip the numerator and denominator, forming the reciprocal (2/3). Now multiply 45/8 and 2/3
The result is 90/24, and simplifying would get 15/4, or 3 3/4. This is the width(or length)

Answer:

8 7/16

Step-by-step explanation:

The bag was filled with red marbles and blue marbles in the ratio of 5:7. If there were 180 marbles in the bag,how many were red?

Answers

You just have to multiply each number by 180 and that's how many you have of each color respectively

R + B = 5/7 x 180
R + B = 900/7 = 128, 4/7
If R = B than R is 450/7 = 64, 2/7
R or B = 64, 2/7

What is the next odd number after 9999?

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the next odd number is 10001

the odd number after 9999 is.........10001

If 45 cookies will serve 15 students, how many cookies are needed for 30 students?I think i have it but not sure

Answers

The above question has to do with proportionality, specifically direct proportionality.

Direct proportionality means when an item x is directly proportional to an item y. This is represented mathematically as:

x ∝ y

90 cookies will serve 45 students.

The number of cookies needed for 30 students is 90 cookies

From the above question,

45 cookies will serve 15 students

Hence,

15 students = 45 cookies

30 students = ?

Cross Multiply

30 students x 45 cookies / 15 students

= 90 cookies.

Therefore, 90 cookies will serve 45 students.

To learn more, visit the link below:

brainly.com/question/18536567

Because your numbers are simple in this question, you can look at it this way...

You know how many cookies are needed for 15 students but you need to fiqure out how many for 30 students. The ratio between 15 to 30 is a 1:2, AKA double. THis means that you can simply double the known number of cookies and it will give you the amount that you need for double the people.
Your answer is 90 cookies.

Express (x –1)(x + 2)(x – 3) in standard form

Answers

Answer:

x^3-2x^2-5x+6

Step-by-step explanation:

Expand:

(x^2+x-2)(x-3) =

x^3-2x^2-5x+6

Maria works 24.5 hours each week at a bookstore . she earns 8.76 per hour . How much does she earn each week

Answers

Since Maria works 24.5 hours a week and 8.76 per hour, you find the total amount by multiplying 24.5 (hours) by 8.76 (amount per hour)

That gets you $214.62.

She earns 24.5 x 8.76 = 214.62

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Noel read 90 minutes each day for 6 days. Tyra read 60 minutes each day for 8 days. What is the difference in minutes, between the total amount of time Noel read and the total amount of time Tyra read?