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Alika [10]
3 years ago
12

If x,y and z are positive integers and 3x=4y=7z,

Mathematics
1 answer:
Pani-rosa [81]3 years ago
5 0
<span>3x=4y=7z
so
GCF:
3 * 4 * 7 = 84

3x = 84 
  x = 28

4y = 84
  y = 21

7z = 84
  z = 12

</span><span>least possible value for
</span><span>x + y + z = 28 + 21 + 12 = 61
</span>
answer
(d) 61
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A rectangle has vertices E(-4, 8), F(2, 8), G(2, -2) and H(-4, -2). The rectangle is dilated with the origin as the center of di
Marizza181 [45]

Answer:

The dilation on any point of the rectangle is P'(x,y) = \frac{5}{2}\cdot P(x,y).

Step-by-step explanation:

From Linear Algebra, we define the dilation of a point by means of the following definition:

G'(x,y) = O(x,y) +k\cdot [G(x,y)-O(x,y)] (1)

Where:

G(x,y) - Coordinates of the point G, dimensionless.

O(x,y) - Center of dilation, dimensionless.

k - Scale factor, dimensionless.

G'(x,y) - Coordinates of the point G', dimensionless.

If we know that O(x,y) = (0,0), G(x,y) =(2,-2) and G'(x,y) =(5,-5), then scale factor is:

(5,-5) = (0,0) +k\cdot [(2,-2)-(0,0)]

(5,-5) = (2\cdot k, -2\cdot k)

k = \frac{5}{2}

The dilation on any point of the rectangle is:

P'(x,y) = (0,0) + \frac{5}{2}\cdot [P(x,y)-(0,0)]

P'(x,y) = \frac{5}{2}\cdot P(x,y) (2)

The dilation on any point of the rectangle is P'(x,y) = \frac{5}{2}\cdot P(x,y).

5 0
2 years ago
Amy said 49 of her teammates got hits during a recent softball game. Which decimal represents this same amount?
luda_lava [24]
D , because 1+1=2/5•7q+09
7 0
3 years ago
I suck at math..
harkovskaia [24]

Answer:

30 pencils.

Step-by-step explanation:

Okay, So The answer is 30 pencils. First we must know that 2 dozen is equivalent to 24. Our fraction part is 1/2, what is 1/2 of a dozen? 6, so we must add 6 to 24 to get our answer of 30! Hope that helped : D

6 0
3 years ago
Read 2 more answers
Ava paid $4.90 for 2.5 pounds of walnuts. what is the cost of one pound of walnutKieth has a box of 416 crayons the he wants to
Nadusha1986 [10]

Okay so for the first one all you have to do is divide 4.90 by 2.5 and get 1.96.                So your answer for the first on is $1.96.

For the second one you just have to divide 416 by 13 and you get 32.                            So each friend gets 32 crayons.

Hope this helped you (;

4 0
3 years ago
If matrix A is added to matrix B and the result is matrix C, what is the result if matrix B is added to matrix A?
Leviafan [203]
Since addition is commutative you would get the same answer.
3 0
2 years ago
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