09/12/15

#### Probability word problem

Of a group of 30 cats, 24 eat tinned or dry food, 10 like dry food and 5 like both tinned and dry food. Find the probability that a selected cat likes only tinned food.
Answer 7/15, but how do...
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09/11/15

#### one number is four times the other number. If each number is increased by 5, the product of the two new number is 91. Find the two original numbers.

Quadratic Equation word problem
(I need the formula,please.QWQ)

09/11/15

#### Two bodies of masses m1 and m2 fall from height h1 and h2 respectively.The ratio of their velocities,when they hit the ground is?

options are
under root h1/h2
h1/h2
m1h1/m2h2
h1^2/h2^2
ans is the underroot one

09/11/15

#### Will gravitational potential energy equal the same amount as kinetic energy?

I'm doing a Physics report on a free-fall ride and the data I've recorded from it has given me a gravitational potential of 2099160 N and a kinetic of 44250 N. I know that by the time the object...
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09/11/15

#### Ten people are at a party, and you want everyone to meet (shake hands with) everyone else at the party. How many handshakes will it take?

Solution to this word problem

09/11/15

#### if 5 ml of blood contains 5.2 gm of hemoglobin, how many kg would be present in 1 qt of blood?

(Hint... 1qt equals 1000 ml)

09/11/15

#### There are infinitely many pairs of numbers such that the greater one is 3 more than 2 times the lesser one.

(Can you list some such pairs?) Find the pair whose product is as small as possible.

09/11/15

#### my question about percentages is in the details

How can $80,000 be invested, part at 10% annual simple interest and the remainder at 6% annual simple interest so the interest earned by the two accounts will be equal?

09/11/15

#### What was the daytime high temperature at the end of the 9-day period?

St. Lawrence Island, off the coast of Alaska, had a daytime high temperature of -4°F on Monday. The high temperature decreased 6°F on Tuesday and then increased 2° F each day for the next 7 days....
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09/11/15

#### a newspaper carrier has $6.30 in change. he has 9 more quarters than dimes but five times as many nickels as quarters. how many coins of each type does he have?

solve linear equations involving decimals

#### A newspaper carrier has $6.40 in change. He has two more quarters than dimes but four times as many nickels as quarters. How many of each type does he have?

Linear equation Word problem help

09/11/15

#### the perimeter of a rectangle is 34 feet and it's area is 30 square feet. Find the length and width of the rectangle.

I need to see the steps to solve the problem.

09/11/15

#### If 10 pounds of the two items mixes together costs $24.50, find the amount of each type in the mixture

A health food store charges $2.00 per pound for high-protein nature mix and $2.75 for low-carb soy medley. If 10 pounds of the two items mixes together costs $24.50, find the amount of each type in...
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#### Physics help?

A turtle and a hare race. The hare takes off at 4.5 m/s for 15 minutes and the turtle takes off at 0.45 m/s. The hare then slows down to 1.5 m/s for 10 mins. Then it falls asleep for 20 minutes. It...
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09/11/15

#### Jack Pasler earns $30,940 annually as an accountant. He is married and supports 1 child.

Jack Pasler earns $30,940 annually as an accountant. He is married and supports 1 child. The state tax rate in her state is 3% of taxable income. What amount is withheld yearly for state income tax?

09/11/15

#### Calculation query

Hi,I have a query regarding calculation.Please help me out. There are 3 exams Exam1 is out of 30 -In this student obtained 26 Exam 2 is out of 30 -In this student obtained 24 Exam 3 is out of 100...
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09/10/15

#### In 1 second, light can travel 2.998 x 10^8 m. How many inches does light travel in 1 femtosecond (1 fs = 10^-15 s, 1 inch = 2.54 cm exactly)?

This is conversion using given information.

09/09/15

#### Given the functions f(x) = 2x2 - 8x, g(x) = x2 - 6x + 1, and h(x) = –2x2

Given the functions f(x) = 2x2 − 8x, g(x) = x2 − 6x + 1, and h(x) = –2x2, rank them from least to greatest based on their axis of symmetry.

09/09/15

#### Given the function f(x) = x2 and k = 2, which of the following represents a horizontal shift?

Given the function f(x) = x2 and k = 2, which of the following represents a horizontal shift?

09/09/15

#### How many lilies does it take to cover?

A particular lake has water lilies growing on it. On the first day, there are two water lilies. Each day, the number of water lilies doubles. After 30 days, the water lilies cover half the lake....
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09/08/15

#### solve the formula for the specific variable A=1/2bh for h

1. solve the formula for the specific variable A=1/2bh for h
2. Walt made an extra $7,000 last year from part time job. He invested part of the money at 9% and the rest 6%. He made a total of...
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