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Alexeev081 [22]
3 years ago
9

I need help with question 3 and 4

Mathematics
1 answer:
katrin2010 [14]3 years ago
7 0
Question 3.  You divide 5 1/4 by 3/4 then multiply that by 20.
The answer is 140


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Solve x - 6x = 40 by factoring. What is<br> the solution?
marta [7]

Answer:

x=-8

Step-by-step explanation:

collect like terms

-5x=40

divide both sides of the equation by -5

so the answer would be x=-8

7 0
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Solve for<br>30 + 9<br>43<br>a =​
Bingel [31]

Answer:

a=39

Step-by-step explanation:

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A cylinder and a cone have the same diameter: 8 inches. The height of the cylinder is 9 inches. The height of the cone is 18 inc
Elan Coil [88]
\sf Cylinder ~volume = \pi r^2 h \\  \\ v = \pi (4)^2(9) \\  \\ v=\pi (16)(9) \\  \\ v=144 \pi  \\ v=452.16\\  \\  \\ Cone~volume = \frac{1}{3} \pi r^2 h \\  \\ v =  \frac{1}{3} \pi (4)^2 (18) \\  \\ v=96 \pi \\ v=301.44 \\  \\  \\ The~ volume ~of ~a ~cylinder ~is~ 1.5~ times~ more ~than ~the ~volume ~of~a~cone.
4 0
3 years ago
How do you factorize (x-2) ^2-(x+3)^2?<br>​
vaieri [72.5K]

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Step-by-step explanation:

=x^2-4x+4-x^2-6x-9

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4 0
3 years ago
Please help me with number 6
Genrish500 [490]
30=(10*3*x)/2
*2 *2
60=10*3*x
60=30x
60/30=30x/30
2=x
7 0
3 years ago
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