For every 3 packages that Marcella wraps, she uses 1/2 of a roll of wrapping paper.

If she uses 2 1/2 rolls of wrapping paper, how many packages has she wrapped?
helppppp

Answer:

She has wrapped 15 packages.

Step-by-step explanation:

Heres how I did it. I used my fingers for this, it's a little odd I know but it works. I put up one finger for each half. So each finger represents one half. I needed to get to 2 1/2 so I put up two finger and I said "that's one " because a half plus a half is a whole or just one. Then I put up one more finger and I said " That's one and a half". I then put up two more and then I had 2 1/5. What I did then was count how many fingers I had up. I had 5 fingers up. So then I multiplied 3 x 5 and that gave me 15. Hope I could help!

What is wrong with this equation 7/9-8/9=1/9

Collect like terms to simply the expression

3r + (-3r) =



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Question 8 (1 point)
Collect like terms to simplify the expression

2j + (-9j) =



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Question 9 (1 point)
Collect like terms to simplify the expression

12 + 4b - 3 + 2c =



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Question 10 (1 point)
Collect like terms to simplify the expression

7y + 8 - 2y + 4 =



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Question 11 (1 point)
Collect like terms to simplify the expression

2a + 3b - 3a + 4c - b =





(This is not the same as the question before. Look closely.)

Blank 1:
Question 12 (1 point)
What is the perimeter of this triangle (in simplest form)?

Your answer should not have parentheses or multiplication symbols !





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Question 13 (1 point)
Which TWO expressions below are equivalent? (Make sure to click TWO answers !)

a
2(x - 5) + (-7)
b
2x - 17
c
2x - 12
d
x + (-7) + x + 5
e
x + (-7) + (-10)
Question 14 (1 point)
What shows the proper factoring of this expression?

4d + 24

a
4(d + 6)
b
2(d + 12)
c
4d(4 + 6)
d
6(d + 4)
Question 15 (1 point)
What is the proper factoring for this expression?

50 + 25x + 75y

a
75(x + y)
b
25(2 + x + 3y)
c
25(2 + 2x + 3y)
d
25(x + 3y)
Question 16 (0 points)
How confident do you feel about your ability to master this material by January 19?



(Don't worry--by the time we get to the first quiz, you will have had many chances to practice the ideas from this pre-test.)

a
Very confident
b
Pretty confident
c
A little confident
d
Not very confident

please help ill give brainliest

can somebody give me a ratio problem for 1:4 (for example For every batch of cookies Eva makes she needs 4 tablespoons of butter) I need a ratio problem like that for 1:4

Please no wrong answers

John bought 6 dumplings for $3.00.

Let x represent the number of dumplings purchased, and let y represent the total cost.

Graph the line that represents the proportional relationship.

Plz Help Asap!!! MARK BRAINLIEST!!!

Justin and his friend Dan went to the movies. If they each bought popcorn for $4.25 and a soda for $2.25, what was their total bill after adding 5 ¼ % sales tax?

NEED ANSWERS ASAP 10 QUESTIONS IF RIGHT WILL GIVE BRAINLIEST

I need help with this problem if you know how to do it please helppppp meeeee

Martha wants to give each guest the same thing in each gift bag. She has 12 chocolate bars, 24 packs of gum and 48 bags of chips.

Students in a science class investigated how the speed of sound changes with the air temperature outside. The data are shown in the scatterplot.

Based on the scatterplot, what is the best prediction of the speed of sound when the air temperature is 45°C?

350 m/s

355 m/s

360 m/s

365 m/s

-9+4(f-1)=-13+4f. Find f

In science class, Mrs. Moore’s students were directed to weigh a 300-gram mass on the balance scale. Tina weighed the object and reported 328 grams. Calculate the percent error. Show your work.

What is f(-2) if f(x) =1/2x?

PLS help me with my math.

2[tex]^{2}[/tex] + 5 + 50 ÷ 2(5)

Which of the equations is graphed below?

A. y=-2x + (1)/(2)
B. y = -2x – 1
C. y=-2x-(1)/(2)
D. y = -2x + 1

PLEASE HELP ME ASAP!!
Fifty percent of the area of this rectangle is shaded. What is the area of the shaded region? Explain your thinking.

On a recent survey, 60% of those surveyed indicated that they preferred taking a trip to the beach over a trip to the mountains. If 810 people preferred a trip to the mountains, how many people were surveyed?
Question 1 options:

486


870


1,350


2,025

hihihihi im backkkkkkk
please help :D

Please answer this. Thankyou!

Nikki and Nikko can do 140 jumping jacks in 6 minutes. How long will it take them to complete 350 jumping jacks? Use at least 2 ways to show your answer.

Brainliest
Use substitution to find the ordered pair of the following system of equations:
y=6xy

y=5x+7
(_,_)<------ answer insert.

help meee pleasee !!!

Heather bought 5 apples for $3 and a melon. The total cost for the fruit was $4.95. How much did the melon cost? Identify the equation you could use to represent the situation where m represents the cost of the melon. *
3m = 4.95
3 + m = 4.95
5 + m + 4.95
15 + m = 4.95

B. Juan’s cell phone company charges $35 a month for phone service plus $0.50 for each text message. How many text messages does Juan send in a month if his bill was $52?
1. Define the variable: 2. Determine the constant:$35
3. What is the rate? 4. Write the equation and solve: 35+0.50t=52

C. Friendship’s soccer team purchased uniforms and equipment for a total cost of $912. The equipment cost $612, and the uniforms cost $25 each. How many uniforms did the school purchase?
1. Define the variable: 2. Determine the constant:
3. What is the rate: 4. Write the equation and solve:


D. Long’s Coffee Shop sells a refill mug for $8.95. Each refill costs $1.50. Last month, Jalissa spent $26.95 on a mug and refills. How many refills did she buy?
Write the equation and solve:

A salesperson’s commission rate is 4%. What is the commission from the sale of $39,000 worth of furnaces? Suppose sales would double. What would be true about the commission?

whats , 3(a+b)+2b / please help I will give you 10 points

Please help I will give brainliest and 11 points!!

if it's 3:50 p.m., what time will it be in 2 1/2 hours?
if it's 9:25 a.m., how long will it be until the time is 1:15 pm?