# Posts by Aileen

Total # Posts: 37

**Math**

Mark had red toy cars and blue toy cars in a box. The ratio of the blue toy cars to the red toycars was 5:2. when Mark put 15 more blue toy cars in the box, the ratio of the blue toy cars to the red toy cars became 4:1. How many red toy cars and blue t0y cars are now in the box?

*September 14, 2016*

**Math**

Flery has some apples and bananas. The ratio of the apples to the banaas is 2:5. She used 1/4 of the apples to make an apple pie. What is the new ratio of the apples to the bananas?

*September 14, 2016*

**Math**

Max has two baskets of oranges. The ratio of the oranges in basket A to those in basjket B is 7:4. If Max puts half of the oranges in basket A to basket B. what is the new ratio of the oranges in basket A to basket B?

*September 14, 2016*

**Biology/ Chemistry**

You want to prepare 0.5 L (500mL) of a 0.250M Na2SO4 solution. How many grams of do you need to measure out for the solution? [MW of Na2SO4 = 142 g

*September 21, 2015*

**Urgent math**

so I tried to expand this question and I got x^3 *x2, i don't know if it's right but if not can I get a step by step explanation please, Expand (2x + y^2)^5. (Simplify your answer completely.)

*August 15, 2015*

**Urgent math**

pls help out with this example as well. Find the term containing x^3 in the binomial expansion of (3x − 3)^10

*August 15, 2015*

**Urgent math**

how do I do this can any body show me how? An arithmetic sequence begins 4, 9, 14, 19, 24, . . . . (a) Find the common difference d for this sequence. d = (b) Find a formula for the nth term an of the sequence. an = (c) Find the 35th term of the sequence. a35 =

*August 15, 2015*

**physics**

Toby is jogging at a constant speed of 3 m/s along a winding path. He is accelerating even though he is going at a constant speed. how is this possible? please help..

*February 17, 2015*

**Chemistry**

2.The solubility of sodium chloride at 20 degrees Celsius is 358g/1000g H20, or 358g/1358g solution. How many grams of sodium chloride would you expect to dissolve in 2200 grams of H20 at 20 degrees Celsius?

*November 9, 2014*

**Microeconomics**

Mary's utility function is U(b,c)= b+ 100c - c^2. b takes up 1 sq ft and c takes up 4 sq ft. a) if Mary has only 144 sq ft, how much of c would she grow? b) if mary grows both b and c, how large must her garden be in sq ft?

*October 9, 2014*

**math**

If 3 hexagons and 4 trapezoids cost 200 in total what of is the cost of each piece alone?

*January 30, 2014*

**math**

If 3 hexagons and 4 trapezoids cost 200 in total what of is the cost of each piece alone?

*January 30, 2014*

**math**

If 3 hexagons and 4 trapezoids cost 200 in total what of is the cost of each piece alone?

*January 30, 2014*

**math**

If 3 hexagons and 4 trapezoids cost 200 in total what of is the cost of each piece alone?

*January 30, 2014*

**MATH**

x+5,ifx=3

*December 9, 2013*

**fractions**

1/4 is not colored

*February 26, 2013*

**Math**

I need help on the worksheet of what do you get if a bunch of bad guys fall into the ocean worksheet. I don't want the answer I want help on the problems.

*February 22, 2013*

**Math**

I need help on the worksheet of what do you get if a bunch of bad guys fall into the ocean worksheet. I don't want the answer I want help on the problems.

*February 22, 2013*

**Science**

if a radioactive isotope has a half-life of one year, how much of the original sample will be left at the end of the second year?

*August 23, 2012*

**Science**

if a radioactive isotope has a half-life of one year, how much of the original sample will be left at the end of the second year?

*August 23, 2012*

**chemistry**

you dissolve 0.70 moles of HCI in enough water to prepare 250ml of solution. what is the molarity of the solution you have prepared

*April 15, 2012*

**vocabulary**

can u give me a sentence with the words indifferent & heartily?

*April 4, 2011*

**history**

What is political centralization and decentralization? Where was the central government strong? Where was it weak? Why?

*March 14, 2011*

**math help**

Suppose you are managing 25 employees, and you need to form three teams to work on three different projects. Assume that all employees will work on exactly one team. Also, each employee has the same qualifications/skills, so any employee can serve on any team. The number of ...

*December 7, 2010*

**physics**

I calculated parts a, b, c, but cannot figure out d. I tried combining all the forces and adding them but I am missing something? There is an 18 kg box on a 32degree incline. a HORIZONTAL force of 150 N is given to the box a) How much work is done by the horizontal force F = ...

*November 7, 2010*

**Chemistry**

i don't know

*May 6, 2010*

**4th grade math**

there are 60 second in 1 minutes. so, multiply 3 and 24 =72. so add 72+24=96 seconds. your answer is 96 seconds.

*March 10, 2009*

**Math**

a class party and save the rest for a trip. i say that.

*March 10, 2009*

**5th grade science**

head, legs, arms, feet, and hands. I hope you know what they do!!

*March 9, 2009*

**Chemistry**

I need predict the bond type for NaCN. Also, for covalent molecules, specify also whether the molecule as a whole is polar?

*March 6, 2009*

**Math**

you know that u can just look in up on google?

*March 5, 2009*

**6th grade Math**

3.14 x 24=75.36

*March 2, 2009*

**4th grade reading**

this is definetely not 4th grade level. what planet are u from?

*March 2, 2009*

**5th grade**

1/2 + 1/3 + 4=4.8 so round to 5 bones.

*February 25, 2009*

**6th grade geometry**

octagon, polygon, ....

*February 25, 2009*

**6th grade**

100-87=13 so its 13/87 as a fraction. your answerr is 13 over 87.

*February 24, 2009*

**social studies**

OK people the answer is beeswax I'm positivly sure about that. Had homework on it

*November 16, 2006*

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