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makkiz [27]
3 years ago
14

Ayudaaa es urgente por favor :(

Mathematics
1 answer:
rjkz [21]3 years ago
7 0
3 /24 porque es 1/12
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If twice a number is increased by 5 and this sum is multiplied by -3, the result is -57 . What is the number?
cupoosta [38]
Set it up like this, going from words on the page to letters and variables:
-3(2x+5) = -57. Twice a number is 2x, increased by 5 is 2x+5, and that is multiplied by -3 to get a total of -57. Distribute the -3 into the parenthesis to get -6x - 15 = -57. Move the 15 over by addition to get -6x = -42. Divide both sides by -6 to get that x = 7
6 0
3 years ago
Which equation can be solved using only natural numbers
Ad libitum [116K]

Answer:

C

Step-by-step explanation:

Natural numbers are numbers which are positive whole numbers greater than 0. This includes 1, 2, 3, ...etc.

To determine, solve each equation.

A. x=0

B. x = 1/3

C. x=3

D. x=-4, 4

Only C is a natural number.

4 0
3 years ago
The right triangle on the right is a scaled copy of the right triangle on the left. Identify the scale factor. Express your answ
inessss [21]

Answer:

34/39

Step-by-step explanation:

scale factor = new length / old length

34's factors are 1, 2, 17, 34

39's factors are 1, 3, 13, 39

no common factors bigger than 1 so cannot simplify

5 0
3 years ago
At 2pm the level of the water in the pool was 10 feet. At 6pm the level of water was 2 feet. Find the constant rate of the water
RSB [31]
The answer might be 8 if you subtract the two numbers
7 0
4 years ago
Read 2 more answers
Write the equation -4x^2+9y^2+32x+36y-64=0 in standard form. Show each step of the process.
Blizzard [7]

Answer:

The answer to your question is below

Step-by-step explanation:

      -4x² + 9y² + 32x + 36y - 64 = 0

     -4x² + 32x        + 9y² + 36y         =  64                          

     -4(x² + 8x        ) + 9(y² + 4x        ) = 64                     Factor coefficients

     -4(x² + 8x + 4²) + 9(y² + 4x + 2²) = 64 - 64 + 36     Complete trinomials

                -4(x + 4)² + 9(y + 2)² = 36                              Factor trinomials

    \frac{-4(x+4)^{2} }{36} + \frac{9(y + 2)^{2} }{36} = \frac{36}{36}

                                                                                       Divide by 36

    - \frac{(x+ 4)^{2} }{9} + \frac{(y + 2)^{2} }{4} = 1   Simplify

3 0
3 years ago
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