Friday

January 20, 2017
Total # Posts: 137

**Algebra**

A laboratory technician wishes to mix a 70% saline solutio and a 20% solution to prepare 500ml of a 40% solution. What amount of each solution should be used?

*December 7, 2016*

**Algebra**

Rosa is 14 years older than her sister Amy. 3 years ago, she was 3 times as old as Amy. How old are they now?

*December 5, 2016*

**Math**

A boat traveled 36 mi up a river in 3 hours, returning downstream, the boat took 2 hours. What is the boat's rate in still water and what is the rate of the river's current?

*December 4, 2016*

**Math**

Not counting the "turn around" , a helicopter carrying passengers between an airport and the roof of a downtown skycraper 20 miles away can make the round trip in 15 minutes. The helicopter flies 2 miles away with the wind when the time it flies 1 mile against the ...

*November 28, 2016*

**Math**

A motorboat travelling at full speed against a current goes 15 miles in one hour. Travelling at half speed with the current, it goes 12 miles in an hour. Find the rate of the current.

*November 28, 2016*

**Math**

The air speed of a plane is 150 mph. If the plane traveled the same distance in two hours with the wind as it flew in 3 hours against the wind, what was the wind speed?

*November 28, 2016*

**Math**

Not counting the "turn around" , a helicopter carrying passengers between an airport and the roof of a downtown skycraper 20 miles away can make the round trip in 15 minutes. The helicopter flies 2 miles away with the wind when the time it flies 1 mike againstnthe ...

*November 28, 2016*

**Math**

Joe takes twice as long as to row against a current as with it. If he rows 6 miles an hour in still water, what is the rate of the water?

*November 28, 2016*

**Math**

A salmon swims 15 miles downstream from its birth to the ocean in 3 hours. The return trip upstream to spawn takes 5 hours. How fast does the salmon swim in still water?

*November 28, 2016*

**trigonometry**

A 15-foot ladder is resting against a wall and makes an angle of 48 degree's with the ground. Find the height to which the ladder will reach on the wall

*November 24, 2016*

**Math**

Y-2x=4 solve for x and y with graph

*October 13, 2016*

**Math**

What is the value of x and y in the equation 7y= 2x+28.

*October 13, 2016*

**ALgebra**

Three years ago, Wendy's age was 3/4 as old as Erna and Lucys age was 2/3 as okd as Erna. If the sum of their ages is 67, find the present age of each.

*September 26, 2016*

**Algebra**

Driving from Tulsa to Detroit, Takimi average 50mph, he figured thatnif he had average 60mph his driving hours would have decreased 3 hrs. How far is it from Tulsa to Detroit?

*September 26, 2016*

**Algebra**

120t = 105 (t+1/3) Find the disrance

*September 18, 2016*

**Algebra**

In an automobile race, the rate of one car was 120 mi/hr and the rate of another was 105 mi/hr. If the faster car finished the race 20 minutes before the slower one, what was the distance of the race?

*September 18, 2016*

**Math**

In an automobile race, the rate of one car was 120 mi/hr and the rate of another was 105 mi/hr. If the faster car finished the race 20 minutes before the slower one, what was the distance of the race?

*September 15, 2016*

**Math**

Tom can clean the living room in 45 minutes. Wally can clean it in 30 minutes. Both start cleaning and 5 minutes later their sister Gigi joins them taking them 7 minutes more to finish. How long would it take Gigi to clean the living room alone?

*September 14, 2016*

**Math**

Imelda's plane travels at a speed of 350kph in still air. One day, she travels 169km against the wind at the same time it takes to travel 190km with the wind. Find the speed of the wind.

*September 14, 2016*

**Math**

A natural number decreased by 30 times its reciprocal is 1. Find the natural number.

*September 14, 2016*

**Algebra**

A boat travels 28 km upstream in 7 hours. It travels 48 km downstream in 4 hours. Find the speed of the boat and the speed of the stream.

*September 13, 2016*

**Algebra**

A boat travels 28 km upstream in 7 hours. It travels 48 km downstream in 4 hours. Find the speed of the boat and the speed of the stream.

*September 13, 2016*

**Algebra**

Find two consecutive integers such that 1/5 of the first less 1/9 of the second is 3

*September 13, 2016*

**Algebra**

Find two consecutive integers such that 1/5 of the first less 1/9 pf the secondnis 3

*September 13, 2016*

**Algebra**

An ordinary plane leaves an airport and flies due west at 180kph. Two hours later, a jet leaves the same airport and flies due west at 900kph. How far from the airport will the jet overtake the ordinary plane?

*September 12, 2016*

**Marh**

An ordinary plane leaves an airport and flies due west at 180kph. Two hours later, a jet leaves the same airport and flies due west at 900kph. How far from the airport will the jet overtake the ordinary plane?

*September 8, 2016*

**Math**

An airplane travels 1260km in the same time a car travels 420km. If the rate of the car is 120kph less than the rate of the airplane, find the rate of each.

*September 8, 2016*

**Math**

An airplane travels 1260km in the same time a car travels 429km. If the rate of the car is 120kph less than the rate of the airplane, find the rate of each.

*September 8, 2016*

**Algebra**

I am having a problem remembering how to word it to solve the problem...

*July 7, 2016*

**Algebra**

A boat can travel 48 miles downstream in 4 hours and can make the return trip in 6 hours. Find the speed of the boat in still water.

*July 7, 2016*

**Algebra**

A rectangular-shaped dance floor has a perimeter of 164 feet. If the floor were 44 feet wider, its width would equal its length. Find the length and width of the dance floor.

*July 7, 2016*

**Algebra**

The ticket prices for a movie are shown in the illustration. Receipts for one showing were $1,990 for an audience of 215 people. How many general admission tickets and how many senior citizen tickets were sold? (General admission tickets: $10 Senior tickets: $6)

*July 7, 2016*

**Algebra**

How would I write out this problem to solve?

*July 7, 2016*

**Algebra**

A merchant wants to mix gummy worms worth $7 per pound and gummy bears worth $3 per pound to make 30 pounds of a mixture worth $4.60 per pound. How many pounds of each type of candy should he use?

*July 7, 2016*

**Algebra**

$2000 at 8% & $8000 at 9% interest was invested.

*July 7, 2016*

**Algebra**

A woman invested some money at 8% and some at 9% annual simple interest. The interest for 1 year on the combined investment of $10,000 was $860. How much was invested at each rate?

*July 7, 2016*

**Math**

If two inlet pipes are open, they can fill a pool in 1 & 12 minutes, one of the pipes can fill the pool itself in 2 hours. How long will it take the other pipe to fill the pool by itself?

*March 2, 2016*

**Math**

A Square shaped animal pen and a pen shaped like an equilateral triangle have an equal perimeters. Find the length of the sides of each pen if the sides of the triangular pen are 16 less than twice a side of the square Pen.

*February 15, 2016*

**Math**

A square shaped animal pen and a pen shaped like an equilateral triangle have an equal perimeters. Find the length of the sides of each if the sides of tje triangular pen are 16 less than twice a sidemif the square pen.

*February 15, 2016*

**Math**

A university drama production sold a total of 400 tickets for P18,500. If student tickets sold for P40 & guest tickets for P60, how many tickets of each type?

*February 15, 2016*

**Math**

Eric has 48 bills valuing P1,500 to be deposited in a bank. If the bills consistedmof P20 & P50 bills, how many P50 bills does he have?

*February 15, 2016*

**Math**

One positive integer is three moee than twice another and their sum is greater than 65 but less than 75. What pairs of integers satisfy this conditions?

*February 15, 2016*

**Math**

One positive integer is three moee than twice another and their sum is greater than 65 but less than 75. What pairs of integers satisfy this conditions?

*February 14, 2016*

**Math**

X = 5

*February 10, 2016*

**Math**

Mother has P1 coin, P5 coins and P10 bill in her purse. In all, she has P112. She has two more P1 coin than P5 coins and one More P10 bills than P1 coins. How many of each kind does she have?

*February 10, 2016*

**Math**

Ricky has 16 coins consisting of P5 & P1 coins amounting to P44. How many of each kind does he have?

*February 10, 2016*

**Math**

Ricky has 16 coins consisting of P5 & P1 coins amounting to P44. How many of each kind does he have?

*February 10, 2016*

**physics**

a billiard ball rolling across a table at 1.50m/s makes a head on collision with an identical ball. find the speed of each ball after the collision;when the ball is at rest;when the 2nd ball ]is moving towards the first at the speed of 1.0m/s; when the second ball is moving ...

*January 27, 2016*

**Math/Business**

Based on this problem: "Wayne owns a shaved ice stand. He sells 700 shaved ice cups per month at $1.50 each, making the total revenue $1,050. Each shaved ice costs Wayne $0.50 and he has fixed costs of $750, making his total costs $1,100. Therefore, he realizes a loss of...

*January 26, 2016*

**Physics AP**

A 32 kg child goes down a straight slide inclined 38∘ above horizontal. The child is acted on by his weight, the normal force from the slide, and kinetic friction. How large is the normal force of the slide on the child?

*November 20, 2015*

**Physics**

A sprinkler mounted on the ground sends out a jet of water at a 30 ∘ angle to the horizontal. The water leaves the nozzle at a speed of 11 m/s . How far does the water travel before it hits the ground?

*October 16, 2015*

**Physics**

A car traveling at 40 m/s runs out of gas while traveling up a 7.0 ∘ slope How far will it coast before starting to roll back down?

*October 12, 2015*

**Physics**

There are competitions in which pilots fly small planes low over the ground and drop weights, trying to hit a target A pilot flying low and slow drops a weight; it takes 1.6 s to hit the ground, during which it travels a horizontal distance of 160 m . Now the pilot does a run ...

*October 1, 2015*

**physics**

On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. The free-fall acceleration on the moon is 1/6 of its value on earth. Suppose he hit the ball with a speed of 25 m/s at an angle 24 ∘ above the horizontal...

*October 1, 2015*

**Physics**

A rifle is aimed horizontally at a target 50 m away. The bullet hits the target 2.4 cm below the aim point What was the bullet's speed as it left the barrel? Express your answer to two significant figures and include the appropriate units

*October 1, 2015*

**physics**

A rifle is aimed horizontally at a target 50 m away. The bullet hits the target 2.4 cm below the aim point. Part A What was the bullet's flight time? Neglect the air resistance Part B What was the bullet's speed as it left the barrel?

*September 30, 2015*

**Physics**

A small plane is 150 km south of the equator. The plane is flying at 150 km/h at a heading of 30∘ to the west of north. how many minutes will the plane cross the equator?

*September 30, 2015*

**Business**

your cash flow projection

*June 24, 2015*

**Math**

What is 7r + -5

*December 11, 2014*

**physics**

Can you help me find the volume of a cube of zinc with the following dimensions: 3.000cm, 3.1cm, 2.99 cm?

*September 25, 2014*

**science**

The measure of how much material makes up an object is the?

*September 10, 2014*

**Math**

Thank you

*September 10, 2014*

**Math**

Explain how you know if a number can be divided by 10 evenly.

*September 10, 2014*

**Math**

Oh wow. I was reading way to much into the question. Thanks again Ms Sue you are my hero.

*September 9, 2014*

**Math**

2. Not sure

*September 9, 2014*

**Math**

Sarah has 10 stuffed animals. Explain two different ways she can group the stuffed animals so each group has the same number and no stuffed animals are left over.

*September 9, 2014*

**Math**

Sarah has 10 stuffed animals. Explain two different ways she can group the stuffed animals so each group has the same number and no stuffed animals are left over?

*September 9, 2014*

**math**

Thank you

*September 9, 2014*

**math**

Bryce draws 40 stars on a poster. He draws 5 rows and puts the same number in each row. How many stars ate in each row?

*September 9, 2014*

**Math**

18/2=9 Thank you

*September 8, 2014*

**Math**

18/2=9

*September 8, 2014*

**Math**

There are 18 students in the classroom. There ate 2 students in each group. How many groups of students are there?

*September 8, 2014*

**Science**

Thank you very much Ms. Sue

*March 26, 2014*

**Science**

Thank you very much Alyssa.

*March 26, 2014*

**Science**

Compare and contrast a desert ecosystem and a forest ecosystem.

*March 26, 2014*

**Math**

In a complete sentence, explain why you can cut the rectangles into different shapes and still have four equal parts?

*February 6, 2014*

**math**

Gary has $1.56 in change in his pocket. if there is a total of 19 coins, how may quarters, dimes, nickeland pennies does her have?

*February 3, 2014*

**Chemestry**

This is college chem 132

*January 26, 2014*

**Chemestry**

My Home work is online. When I gave that answer it said 3 is wrong.

*January 26, 2014*

**Chemestry**

What is the van't Hoff factor for K2SO4 in an aqueous solution that is 5.00 % K2SO4 by mass and freezes at -1.21 ∘C?

*January 26, 2014*

**Algebra**

How do I solve this algebra questions, 2n+4n+4=-8, 9=5+4t, at+2=12, 2x+3=7, 3b+6=12, m/6+5=7????

*December 5, 2013*

**Math**

thank you

*November 20, 2013*

**Math**

18-7=11

*November 20, 2013*

**Math**

Sophia went to an amusement park. She went on 18 rids in all. 7 of the rides were roller coasters. How many of the rides Sophia went on were not roller coasters?

*November 20, 2013*

**Math**

Leslie saw 8 squirrles at the park. She saw 5 birds and 12 ants. how many more ants and birds did Leslie see than she saw squirrles?

*November 20, 2013*

**math**

round 749 to the nearest hundred

*November 14, 2013*

**science**

Ways to group plants? Evergreen, seeds,...

*November 13, 2013*

**English**

Charollets Web How did Wilbur respond to the lamb saying "Pigs mean less than nothing to me"

*November 6, 2013*

**math**

Thank You

*November 4, 2013*

**math**

round to the nearest tens 362

*November 4, 2013*

**math**

round to the nearest thousand 9339

*October 29, 2013*

**math**

round to the nearest thousand 9612

*October 29, 2013*

**math**

Thank you for your help.

*October 28, 2013*

**math**

round to the nearest tens. 575 that would be rounded to 580 right?

*October 28, 2013*

**math**

320 right

*October 28, 2013*

**math**

round to the nearest tens. 324

*October 28, 2013*

**math**

650

*October 28, 2013*

**math**

round to the nearest tens. 646

*October 28, 2013*

**math**

round 997 to the nearest hundreds

*October 24, 2013*

**math**

round to the nearest ten and hundred. 997

*October 24, 2013*