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Question 155776: Your car's gas tank is full and you take a trip. You travel 202 miles, then you fill your gas tank up again and it takes 9.2 gallons. If you designate your change in distance as 202 miles and your change in gallons as 9.2, what is the average rate of change of gasoline used, measured in gallons per mile?
Round answer to 3 decimal places.
Click here to see answer by Earlsdon(6287)

Question 156318: what is the minimum score needed to make on the 5th test so that the mean test score is at least 85? The first 4 test were 87, 92, 76, and 89
Click here to see answer by nerdybill(6951)

Question 156332: how do you find the missing number (averages)?
homework grade 87
homework grade 79
next test must score ? to get an average grade of 98
Click here to see answer by oscargut(891)

Question 156472: if 6 and x have the same mean average as 2,4, and 24, what is the value of x
Click here to see answer by stanbon(57250)

Question 156583: If the total cost of x apples is b cents, what is the general formula for the cost, in cents, of y apples?
Click here to see answer by stanbon(57250)

Question 156993: can you help by finding each quotient:
6 1/4 divided by 2 1/2=
2 1/3 divided by 7/10=
Also can you explain me the process to get the proper answer?
Thank you
Isaias
Click here to see answer by gonzo(654)

Question 157349: Find the vertex, the line of symmetry, and the maximum or minimum value of f(x).
f(x)=1/4(x+7)^2+3
Vertex is ? (type an ordered pair)
Line of symmetry is ?
Maximum/minimum value of f(x)
Is the vlue f(-7)=3 a minimum or maximum?
Click here to see answer by jim_thompson5910(28504)

Question 157329: for the following equation, state the value of the discriminant and then describe the nature of the solutions. 4x^2-9x-1=0.
Value of the discriminant - (I got 97 - is that right?)
Equation has:
a) 2 imaginary solutions
b) 2 real solutions
c) 1 real solution
Click here to see answer by Fombitz(13828)

Question 157332: Find the gcf for the group of terms -30a^3, 5a^4
Click here to see answer by checkley77(12569)

Question 157420: If r =2 and s = -7, what is the value of |r|-|s|? 5, or -5 , or 9 or -9
Is this 2-7 = -5 or 2- -7= 9? What does the bars mean i.e. are they like brackets? Most kids think the ans. is -5 but can't tll me why?
Click here to see answer by gonzo(654)

Question 157381: A purse contains a collection of quaters, dimes,
nickels,and pennies.Thwe average value of the coins
in the purse is 18cents.If a penny is removed from the purse
the average value is___19.find how many nickels are there?
Click here to see answer by ankor@dixie-net.com(15639)

Question 157763: FIND THE TWO-HUNDREDTH DIGIT IN THE DECML REPRESENTATION OF EACH OF THE FOLLOWING FRACTIONS:
5/6
4/11
1/13
Click here to see answer by checkley77(12569)

Question 158180: You have a series of twelve numbers whose mean is 7 median is 6 and mode is 8
What are the numbers?
Click here to see answer by jim_thompson5910(28504)

Question 159081: The average price of 3 mugs is $4, one of the mugs cost $p and another mug cost $3...express the price of the 3rd mug in terms of p...
Click here to see answer by jojo14344(1512)

Question 159376: 2 cars start from the same place and time, traveling in opposite directions, one averaging 65km p/h, the other 90km p/h. After how long will they be 450km apart ?
Click here to see answer by aka042(26)

Question 159345: Hi, Can someone please help me with these problems. I've tried to solve them and having a VERY HARD time. PLEASE, PLEASE!! Thank you,
1. You are planning to deposit $10,000 today into a bank account. Five years from today you expect to withdraw $7,500. If the account pays 5% interest per year, how much will remain in the account eight years from today?

2. What is the value (price) of a bond that pays $400 semiannually for 10 years and returns $10,000 at the end of 10 years? The market discount rate is 10% paid semiannually.
3. Combs, Inc. is issuing new common stock at a market price of $22. Dividends last year were $1.15 per share and are expected to grow at a rate of 7%. Flotation costs will be 5% of the market price. What is Combs, Inc.’s cost of external equity?
4. Frank Zanca is considering three different investments that his broker has offered to him. The different cash flows are as follows:
End of Year A B C
1 300 400
2 300
3 300
4 300 300 600
5 300
6 300
7 300
8 300 600
Because Frank has enough savings for only one investment, his broker has proposed the third alternative to be, according to his expertise, the best in town. However, Frank questions his broker and wants to eliminate the present value of each investment. Assuming a 15% discount rate, what is Frank's best alternative?

Click here to see answer by aka042(26)

Question 160199: What are the conditions when the sum of a positive number and several negative numbers will be positive?
When you add the negative numbers together and they equal less than the positive number.
Click here to see answer by lkayestanton(1)

Question 161344: who are the mathematicians who focus in math?
Click here to see answer by ankor@dixie-net.com(15639)

Question 162140: The Madison High School marching band sold solid color gift wrap for $4 per roll and print gift wrap for $6 per roll. The total number of rolls sold was 480, and the total amount of money collected was $2340. How many of each kind of gift wrap were sold?
Click here to see answer by checkley77(12569)

Question 162149: Hector is performing a chemistry experiment that requires 140 millimeters of a 30% copper sulfate solution. He has a 25% copper sulfate solution and a 60% copper sulfate solution. How many milliliters of each solution should he mix to obtain the needed solution?
Click here to see answer by ankor@dixie-net.com(15639)

Question 162674: Forensics. A forensics scientist uses the expression 72.6 + 2.5T to estimate the highest in centimeters of a female with a tibia of length T centimeters. If a female skeleton has a tibia of length 32.4cm, then what was the height of the person? Find the length of your tibia in centimeters, and use the expression from this exercise or the previous exercise to estimate your height.
Click here to see answer by vleith(2825)

Question 163232: This is a 4th grade math book
algebra copy and complete each number sentence.
a. _ x 14 = A where A is greater than 100.
b. _ x 24 = B where B is less than 100.
Click here to see answer by kammikam(2)

Question 163277: the average of four numbers is 638.4 the first four numbers are 216 159.8 and 301.25 Find the fourth number.
Click here to see answer by edjones(7569)

Question 163277: the average of four numbers is 638.4 the first four numbers are 216 159.8 and 301.25 Find the fourth number.
Click here to see answer by orca(409)

Question 164966: Weighted Averages.

A liter of cream has 9.2% butterfat. How much skim milk containing 2% butterfat should be added to the cream to obtain a mixture with 6.4% butterfat?
Click here to see answer by nerdybill(6951)

Question 165491: Estimate the solution by graphing. then use the addition method to solve the system.
y=x-7
x+y=3
Click here to see answer by jojo14344(1512)

Question 167299: Average age of A & B is 24 years and average of B, C & D is 22 years. The sum of the ages A, B, C & D is
Click here to see answer by ankor@dixie-net.com(15639)

Question 167392: if the average (arithmetic mean) of 5 consecutive integers is 12. what is sum of the least and greatest of the 5 integers ?
Click here to see answer by gonzo(654)

Question 168672: solve:
1.(2a-7)(a+9)=0
2.64x^2-9=0
3.x(x+3)=18
factor:
1.2ab+2ay+bx+xy
Click here to see answer by checkley77(12569)

Question 168672: solve:
1.(2a-7)(a+9)=0
2.64x^2-9=0
3.x(x+3)=18
factor:
1.2ab+2ay+bx+xy
Click here to see answer by KnightOwlTutor(293)

Question 169260: carmen made $302 for 18 hours of work at the same rate how much would she make for 7 hours of work
Click here to see answer by checkley77(12569)

Question 169853: The perimeter of a swimming pool is 96 meters. The width is 3 meters more that the length of the pool. Find the length and width of the pool.
Click here to see answer by nerdybill(6951)

Question 170363: Hi my daughter is working on averages and I am stumped cannot remember the formula HELP. Thanks
Sue's average for 9 games of bowling is 108. What is the lowest score she can recieve for the thenth game to have an average of 110? I know it's 128 but can't remember the formula. Thanks for any help. Chuck
Click here to see answer by checkley77(12569)

Question 170326: The table shows the balance of a bank account on different days in the month. Find the rate of change during each time interval. During which time interval did the balance decrease at the greatest rate?

Day 1; 6; 16; 22; 30
balance($) 550; 285; 210; 210; 175
Click here to see answer by checkley77(12569)

Question 170321: The table shows the balance of a bank account on different days in the month. Find the rate of change during each time interval. During which time interval did the balance decrease at the greatest rate?

Day, 1, 6, 16, 22, 30
balance($), 550, 285, 210, 210, 175
Click here to see answer by checkley77(12569)

Question 170320: The table shows the balance of a bank account on different days in the month. Find the rate of change during each time interval. During which time interval did the balance decrease at the greatest rate?

Day, 1, 6, 16, 22, 30
balance($), 550, 285, 210, 210, 175
Click here to see answer by checkley77(12569)

Question 170322: The table shows the balance of a bank account on different days in the month. Find the rate of change during each time interval. During which time interval did the balance decrease at the greatest rate?

Day, 1, 6, 16, 22, 30
balance($), 550, 285, 210, 210, 175
Click here to see answer by checkley77(12569)

Question 170620: This is a word problem:
Trevor needs a 93 on his second quiz to average 90. What score did Trevor recieve on his first quiz??
Click here to see answer by stanbon(57250)

Question 170768: An aluminum plate is made according to the following dimensions. The outer radius is 10 inches and the inner radius is 3 inches. (See diagram below) Use p = 3.14 as an approximate value. (a) How many square inches in area is the aluminum plate (the shaded region)? (b) If the cost to construct the plate is $7.50 per square inch, what is the construction cost?
Click here to see answer by Mathtut(3670)

Question 171191: a stray dog at 10 of your muffins. that was 5/9 of all of them. with how many did you start?
Click here to see answer by Mathtut(3670)

Question 172566: Finding MSRP. What was the MSRP for a Hummer H1
that sold for $107,272 after an 8% discount?

Click here to see answer by Mathtut(3670)

Question 173095: It Took Rakeli and Marisa 30 minutes to skate 5 miles to the ice cream shop. On the trip back home, the route was uphill and it took 75 minutes. Find the average speed for the round trip. Round you answer to the nearest tenth.
Click here to see answer by Alan3354(30983)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330