Questions on Algebra: Proportions answered by real tutors!

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Question 97487: can you help me with the following questions thanks
write each ratio in simpiest form
1. 65 to 65
2. 32 to 26
3. 30 over 50
4. 57:60
Click here to see answer by elima(1433)

Question 97481: can you please help me with my homework. create a proportion from each set of numbers
1. 12,36,1,3
2. 11,6,33,18
3. 8,48,30,5
4. 33,22,3,2
Click here to see answer by elima(1433)

Question 97480: state weather the ratios are proportional
1. 50 over 40 equal 5 over 4
2. 12 to 11, 36 to 33
3. 20:40, 1:2
4. 33 over 36 equals 44 over 48
Click here to see answer by elima(1433)

Question 97507: adults and=or students = 2/15 = x/180
Click here to see answer by elima(1433)

Question 99245: It takes only 0.4 seconds for the ball to travel the 60.5 feet from the pitcher's mound to home plate. How many miles per hour did the ball travel?
Click here to see answer by checkley71(8403)

Question 100259: Stan took his collection of nickels and dimes to deposit in the bank. He has fewer nickels than he does dimes. His total deposit is 38.90 How many nickels and dimes did she deposit?
Click here to see answer by bucky(2189)

Question 100598: x-6=6/4
Click here to see answer by checkley71(8403)

Question 100598: x-6=6/4
Click here to see answer by elima(1433)

Question 100798: Please help, I can't seem to get these problems set up right.1.) A medicated first aid spray on the market is 78% alcohol by volume. If the manufacturer has 50 liters of the spray containing 70% alcohol , how much pure alcohol should be added so that the final mixture is the required 78% alcohol? (hint pure alochol is 100%) 2.) There is a box containing 44 coins, consisting of pennies, dimes, and quarters. The number of pennies is equal to the number of dimes, and the total value is $4.37. How many of each denomination of coins are in the box?
Thanks in anvance for your help!!
Click here to see answer by scott8148(6628)

Question 101595: How do you set a proportion for the following question?

Kyle and Jenny played 65 games of checkers last month.Kyle won 40 games and Jenny won the rest.Write a proportion and solve to determine how many games they will have to play before Jenny can expect to win 40 games.
Click here to see answer by scott8148(6628)

Question 102980: Twelve thousand pounds to 2 tons
Click here to see answer by MathLover1(20849)

Question 103030: A 12 pack of 8- ounce juice boxes costs $5.40 How much would an 18 pack of juice boxes cost if it is proportionate in price? Can you help me break down this problem

Click here to see answer by edjones(8007)

Question 103277: Riding a bike it takes you 28 min to go 8 mi. If you continue traveling at the same rate, how long will it take you to go 15 mi?

Click here to see answer by BurningFlame_marc(77)

Question 103293: There are 15 girls and 10 boys in a class. The teacher randomly selects one student to go to the library and then another student to go to the library. What is the probability that both students randomly picked are both girls?
Click here to see answer by checkley75(3666)

Question 104347: on page 196
#8
i dont understand how im surppose to answer it.
im confused.
Click here to see answer by elima(1433)

Question 104785: Iam trying to help my son with problem
x-(-6)=32.5 thanks for any help
Click here to see answer by Fombitz(32388)

Question 104842: x+3 over 4 is = to 7 over 8
Click here to see answer by doukungfoo(195)

Question 102826: How do you solve this problem using the FOIL method backwards?
Click here to see answer by HyperBrain(694)

Question 105134: One number is twice another number. The sum of the two numbers is 39. Find both numbers
Click here to see answer by MathLover1(20849)

Question 97511: boxes/min = 8/20 min = x/60 mins
Click here to see answer by HyperBrain(694)

Question 105692: Sid weighs 65lb. The seesaw balances when sid sits on the seat 4 ft from the center and emily sits on the board 2 1/2 ft from the centet. About how much does emily weigh?
Click here to see answer by checkley75(3666)

Question 106102: Complementary angles are two angles whose measures add to 90 degrees. The ratio of the measures of two complementary angles is 4:11. What are the measures of the angles?
Click here to see answer by Fombitz(32388)

Question 106100: A right triangle has legs 15 inches and 12 inches. Every dimension is multiplied by 1/3 to form a new right triangle with legs 5 inches and 4 inches. How is the ratio of the areas related to the ratio of corresponding sides?
Click here to see answer by ankor@dixie-net.com(22740)

Question 106327: 18/48 = 12/n

Click here to see answer by luckyg25(2)

Question 106389: A wooden model galleon is built using a 1:90 scale. The length of the model is 520 millimeters and the height is 615 millimeters. Solve the proportions to find the actual length and height of the galleon.
Click here to see answer by solver91311(24713)

Question 105016: x over 45 = 70 over 30
Click here to see answer by HyperBrain(694)

Question 97510: international students/us students = 2/35 = x/1575
Click here to see answer by HyperBrain(694)

Question 107564: Thank you in advance tutor,I would like to ask you this proportion question
Given that y varies inversely as the reciprocal of and y= 3 when x=2
Find the equation relating x and y
Click here to see answer by stanbon(75887)

Question 107972: find a number which decreased by 24 equals 3 times its opposites.
Click here to see answer by ankor@dixie-net.com(22740)

Question 108156: The velocity ( v meters per second ) of a body is known to be proportional to the sqaure root of it's kinetic energy ( e ejoules). When the velocity of a body is 120m/s it's kinetic energy is 1600J.
Write down the relationship between v , e using k as the constant of varation.
Calculate the value of k
v = 21 , calculate the kenetic energy of the body in joules.

Can someone explain me please the right method in solving each quesion with the steps.

Click here to see answer by edjones(8007)

Question 108207: solve each proportion.
Click here to see answer by elima(1433)

Question 108645: what number is 120% of 80?
how do i do this?
Click here to see answer by stanbon(75887)

Question 108645: what number is 120% of 80?
how do i do this?
Click here to see answer by checkley71(8403)

Question 108715: A certain preparation consists of liquids x, y, and z in the proportion 5:2:1. How many gallons of the preparation can be made from a stock of materials consisting of 25 gallons of x, 20 gallons of y, and 8 gallons of z?
Click here to see answer by stanbon(75887)

Question 108916: Please help me . This is due tomorrow so I would really apriciate to get the answer ASAP.
A watch, set accurately at noon,at 5p.m indicates 10min. to 5.How many minutes past 5 is it actualyy when the watch indicates 5p.m.. Express your answer as a mixed number.
Click here to see answer by josmiceli(19441)

Question 109010: Jose rode a trail bike for 10 miles. 2/3 of the distance was over a mountain trail. How long is the mountain trail.
I cannot quite figure this out I know 2/3 = 4/6 which is 0.66666 but cannot figure out the distance part. I appreciate any help on this please.
Thank You,
Barb Neely
Click here to see answer by ankor@dixie-net.com(22740)

Question 109042: If 8 people do a piece of work in 12 days, how many people will be needed to do the same work in 16 days?
Click here to see answer by scott8148(6628)

Question 109270: Solve for x: 7/21 = x/24
Click here to see answer by stanbon(75887)

Question 109632: Please help, I am given the following question, but I do not get the answer that is given. Their answer is 154, therefore would you please be able to give me the correct steps to get their answer, or please let me know if they have made a mistake.
If A varies directly as 1/B, and given that A = 117 when B = 83.4, evaluate:
B when A = 63.2.
Thank you so very much. Cheers D

Click here to see answer by Fombitz(32388)

Question 109936: If a a paint mixture uses 60 pounds of solvent for 75 gallons of paint, how many pounds of solvent are needed for 90 gallons of paint?
Click here to see answer by checkley71(8403)

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