![jonathansheehan26](/avatars/6786.jpg)
jonathansheehan26
27.01.2020 •
Mathematics
Solve the following system of equations. x + 2y − 6 = z 3y − 2z = 7 4 + 3x = 2y − 5z
Solved
Show answers
More tips
- H Health and Medicine Boosting Immunity: A Complete Guide on How to Improve Your Body’s Natural Defenses...
- C Computers and Internet The Best Antivirus Programs for your PC...
- H Health and Medicine Angina: Causes, Symptoms, and Treatment...
- C Computers and Internet How to Learn to Type Fast?...
- F Food and Cooking Delight for Gourmets: How to Prepare Liver Pate...
- S Style and Beauty How to braid friendship bracelets?...
- H Health and Medicine Mercury Thermometer Danger: What to do when a thermometer breaks?...
- F Food and Cooking Which Calamari Salad is the Most Delicious?...
- S Society and Politics 10 Tips for Boosting Your Self-Esteem...
- F Food and Cooking The Most Delicious and Simple Fish in Batter Recipe...
Answers on questions: Mathematics
- M Mathematics I 5.5.2 Test (CST): Purchasing and Credit Question 11 of 15 3 Points Jonah s minimum monthly payment on his credit card is the higher of 2% or $20. If his balance at the end of the...
- M Mathematics (20x2 – 12x) + (25x– 15) 4x(5x – 3) + 5(5x – 3) (5x – 3)( x + )...
- M Mathematics 3x-3=x-4 can someone show me the steps for this?...
- M Mathematics Use standard notation to write this number. 4.045x10^-3...
- M Mathematics Here are the dimensions of the oven tray jenny bakes the cakes on 600mm by 500mm. each cake tin is 25 cm in diameter. how many cake tins can jenny fit on the oven tray at one time?...
- M Mathematics Nia recorded her science and math scores.the measures of center and variation for each score are shown in the table below....
- M Mathematics 2. find the perimeter of a rectangle which has a length of 3.2 cm and a width of 1.6 cm....
- M Mathematics Aman can make 12 birdhouses in eight hours how many hours will it take to make 30...
- M Mathematics Need for4,5,6 dealing with isosceles triangles...
- M Mathematics Find the 20th term of an a.p whose first term is 102 and common difference -3...
Ответ:
x+2y-z=6, 3y-2z=74, 3x-2y+5z=-4
eliminate x from the 1st and 3rd equations...
-3(x+2y-z=6)+(3x-2y+5z=-4)
-3x+3x-6y-2y+3z+5z=-18-4
-8y+8z=-22 and the 2nd equation was 3y-2z=7, now we can eliminate z
(-8y+8z=-22)+4(3y-2z=7)
-8y+12y+8z-8z=-22+28
4y=6
y=1.5, making 3y-2z=7 become:
3(1.5)-2z=7
4.5-2z=7
-2z=2.5
z=-1.25, making x+2y-z=6 become
x+2(1.5)-(-1.25)=6
x+3+1.25=6
x+4.25=6
x=1.75
So (x,y,z)=(1.75, 1.5, -1.25)
Ответ:
Calculate the volume of the empty cone.
V₁ = (1/3)π*(6 in)²*(10 in) = 120π in³
Calculate the volume of the sphere.
V₂ = (4/3)π*(1.5 in)³ = 4.5π in³
The volume that can be filled with flavored ice is
V = V₁ - V₂ = 115.5π in³ = 362.85 in³
Th volume is 115.5π in³ or 362.9 in³ (nearest tenth)