# 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?

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?

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?

70,000

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

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.)

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

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 =

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..

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?

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?

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

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

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

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

MATH
x+5,ifx=3

fractions
1/4 is not colored

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.

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.

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?

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?

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

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

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

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 ...

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 = ...

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

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

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

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

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

3.14 x 24=75.36