Answers created by Martha W.

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• If #y# varies inversely as #x# and #y=725# when #x=20#, what is #x# when #y# is 50?
  
• How do you solve this system of equations: #y= - 3x + 1; 5x - 2= - y#?
  
• How do you solve #7(6-3k)=147#?
  
• A rectangle is three times as long as it is wide. The perimeter is 36 cm. What is the length of each side?
  
• A skyscraper contains 80 floors, with adjacent floors 10 feet apart. An elevator in the skyscraper is ascending at a rate of 5 feet per second. How long will it take the elevator to ascend from the 4th floor to the 28th floor?
  
• What is the area of a rectangle with dimensions 5.1 ft by 7.9?
  
• A road sign is in the shape of a regular decagon. What is the measure of each angle on the sign?
  
• How do you solve #-12y = - 156#?
  
• How do you simplify the expression #4^2 + 8 \div 2#?
  
• How do you evaluate #6.90+24.99#?
  
• What is the value of the digit 3 in 1.039?
  
• How much should you invest at 2% for 20 months to have $5000 at the end of that period?
  
• Connor picked 8 1/6 pounds of apples. Louis picked 9 2/8 pounds of apples. How many more pounds of apples did Louis picked over Connor?
  
• How do you evaluate #4\times 16-7#?
  
• What is the other side of a right triangle if it has sides of 9, 41?
  
• Question #3a310
  
• Cups A and B are cone shaped and have heights of #32 cm# and #15 cm# and openings with radii of #9 cm# and #3 cm#, respectively. If cup B is full and its contents are poured into cup A, will cup A overflow? If not how high will cup A be filled?
  
• Write an expression for the sum of three times a given number #x# after it is increased by #3# and twice the number?
  
• Question #3d361
  
• What substance produce golgi bodies?
  
• Between which two plates is the Fiji Plate located?
  
• How do you solve the system of equations #5x - 2y = 2.25# and #7x - 4y = 3#?
  
• How do you solve #x^2-x-1=0# using the quadratic formula?
  
• What would be the total amount after adding 8% interest for 3 months of $6,000.00?
  
• Question #40548
  
• You invest $5000 in an account at 5.5% per year simple interest. How much will you have in the account after 5 years?
  
• How do you factor #9x ^ { 2} + 21x - 18#?
  
• How do you solve the system of equations #4x ^ { 2} + 9y ^ { 2} = 72# and #x ^ { 2} - y ^ { 2} = 5#?
  
• Question #317fe
  
• How do you solve #\frac { x } { 10} + 50= 20#?
  
• How do you solve #\frac { 1} { 2} ( a + 24) = 7#?
  
• How do you find a standard form equation for the line with #A (-1,4)#; Slope: #2/5#?
  
• What is the volume of a cube-shaped box with edges 6 centimeters in length?
  
• How do you simplify #(4x^2y^2)/(25b^2) + (2x)/(25b)#?
  
• How do you add #2x ( 8x - 3) + ( 3x ^ { 2} + 6x - 4)#?
  
• How do you solve #2x-4y=4# and #x + 4y = 14#?
  
• John inherited $5,000 from his grandfather. He put it in a savings account to buy a car when he turns 16. John is 13 right now. If his savings account earns 7% over the next 3 years, how much interest will he have earned?
  
• The length of a rectangular floor is 5 feet less than twice its width. The area of the rectangle is 150 square feet. What is the length of the room?
  
• A cube has a volume of 64 cubic inches. What is its surface area?
  
• What is the slope-intercept form of #7x + 6y = - 4#?
  
• How do you solve #2u + 4= - u + 9+ 4u#?
  
• In a triangle, the ratio of two angles is 5:2, and the third angle is equal to the difference between the other two. What is the number of degrees in the smallest angle?
  
• How do you solve #|\frac { 3x + 5} { 3} | = 4#?
  
• Question #079a0
  
• What is steady-state forecasting and what is it most useful for ?
  
• What is the smallest angle of rotational symmetry that a regular hexagon has?
  
• How do you divide #(-x^3-3x^2+7x+5)/(x-5) #?
  
• Square root of 15 is the geometric mean of x and y . find y if x=3?
  
• How do you solve #2(x-3)^2=8#?
  
• Question #6ac29
  
• How do you simplify #(2x^2+3x +8) -(x^2+ 5x- 1)#?
  
• How do you solve #-12= \frac { - 2x + 15} { 3} + 4x#?
  
• What do eukarya and bacteria have in common?
  
• How do you solve the system of equations #2x + 5y = - 1# and #3x + 2y = 4#?
  
• What is the length of a line segment with endpoint M at (-7, 1) and endpoint N at (3, 4)?
  
• A 7 inch tall water glass is in the shape of a right regular hexagonal prism, If a side of the hexagon has length 2 inches, what is the total surface area in square inches of the outside of the glass?
  
• How do you factor #18u ^ { 9} v ^ { 8} + 30u ^ { 2} v ^ { 2} x ^ { 5}#?
  
• How do you do simultaneous equations?
  
• Question #98749
  
• Question #4184b
  
• Question #a30c4
  
• How do you write the equation in point slope form given (4,3), slope -1/2?
  
• What is rubbing a mineral against a piece of unglazed ceramic tile a test for?
  
• The length of a rectangular rug is 2 times its width. The rug is centered in a rectangular room. Each edge is 3 feet from the nearest wall. How do you write a polynomial that represents the area of the room?
  
• Question #cfa71
  
• It took #6 2/7# yards of material to make four replacement flags for the flag team. Last year they used #3/4# as much material. How much did they use the previous year?
  
• Is #2/3# a rational, irrational number, natural, whole or integer?
  
• Why can the focus of earthquakes be very deep at subduction boundaries?
  
• How do you solve #-11( 10( p + 10) = 4- 5( 2p + 11)#?
  
• What is a discontinuity in geology?
  
• Assume that y varies inversely as x. If y = 7 when x = -3, how do you find y when x = 7?
  
• What is a subcontinent?
  
• How much principal must be deposited to earn $700 simple interest in 2.5 years at a rate of 14%?
  
• In baseball, David has 10 hits out of 21 at bats. Adam has 15 hits out of 21 at bats. How do you write a ratio for each player that represents his total number of hits out of times at bat?
  
• How do you solve #7x - 2y = -23# and #2x - 3y =-9#?
  
• How can you explain a sediment deposit that contains unlayered and randomly sorted material at the bottom and layered, well-sorted material at the top?
  
• How do you simplify #(2x)/(x^2+8x+15)-(x+3)/(x+5)#?
  
• What is a cirrus cloud?
  
• Question #5f9cf
  
• How do you solve #- ( x + 3) + 2x - 1= 6#?
  
• If a pizza requires one crust, three tomatoes, two blocks of cheese and one tube of pepperoni, how many pizzas can be made from three crusts, eight tomatoes, six blocks of cheese, and four tubes of pepperoni?
  
• What is the LCM of #b+7, (b-7)^2# and #b^2-49#?
  
• How were the Appalachain Mountains formed?
  
• In roots, what structure increases surface area for the absorption of water and minerals from the soil?
  
• How do you solve #x^2+8x-5=0# using the quadratic formula?
  
• Yahya works at Target Pumpkin erasers cost $.60 each and ghost erasers cost $.40 each. He sold a total of 350 pumpkin and ghost erasers for $170.00. How many pumpkin erasers did Yahya sell?
  
• How do you solve #-\frac { 3} { 2v - 12} + 2= - \frac { 3} { v - 6}#?
  
• A rectangle has an area of #150# #cm^2#. It has a length that is #5# #cm# longer than its width. What is the rectangle's length?
  
• How do you simplify #6/n^4+2/n^2#?
  
• Question #9ec1c
  
• A rectangular box has a square base of size #x# , a height of #h# and an open top. What is its surface area in terms of #x# and #h#?
  
• Lawn Service spreads grass seed at a rate of 5 1/3 square yards in 4 hours low many square yards of seed does Lou spread per hour?
  
• A replicated chromosome consists of two identical structures known as what?
  
• Question #9ac4a
  
• Alissa is framing a rectangular picture with length 10 inches and width 8 inches. Let x represent the width of the frame in inches. Which expression represents the length, in inches, of the framed picture? x+10 2x+10 10x^2
  
• A bus traveling at an average rate of 30 miles per hour left the city at 11:45 A.M. A car following the bus at 45 miles per hour left the city at noon. At what time did the car catch up with the bus?
  
• What is the color of a mineral's powder called?
  
• A right triangle has a hypotenuse of 28 and one side of 14. What is the length of the third side?
  
• How do you combine like terms in #(6x ^ { 2} + x + 7) - ( 3x ^ { 2} - 5)#?
  
• Question #b663b
  
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