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Sergeeva-Olga [200]
3 years ago
9

20≥−3.2(c−4.3) what is solution.

Mathematics
1 answer:
Brums [2.3K]3 years ago
3 0
20 ≥ -3.2(c - 4.3)
20 ≥ -3.2c + 13.76
6.24 ≥ -3.2c
-1.95 ≤ c
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1/3k+80=1/2k+120 what does k equal?
LenaWriter [7]

Answer:

k = -1/240

Step-by-step explanation:

to evaluate the value of k in the expression 1/3k+80=1/2k+120

we have

1/3k+80=1/2k+120

collect the like terms for easy evaluation

1/3k - 1/2k = 120 -80

1/3k - 1/2k = 40

find the lcm

2 - 3/6k = 40

-1/ 6k = 40

cross multiply

6k  x  40  = -1

240k = -1

divide both sides by 240

240k/240 = -1/ 240

k = -1/240

therefore the value of k in the expression 1/3k+80=1/2k+120 is equals to -1/240

8 0
3 years ago
Using triangle A B C as the pre-image and the origin as the center of dilation, which coordinate point is not a coordinate of a
Ostrovityanka [42]

Answer:

The correct option is:

begin ordered pair 4 comma 12 end ordered pair i.e. (4,12).

Step-by-step explanation:

We are given the coordinates of the point A,B and C of the triangle ΔABC as:

A(-1,3) , B(2,1) and C(-2,-1).

Now it is given that there is dilation of this triangle about the origin with a scale factor of 4.

This means that the change in the coordinates after the transformation is given by the rule:

(x,y) → (4x,4y)

As A → A' , B → B' and C → C'

Hence the coordinates A',B' and C' are given by:

A' are (4×-1,4×3)=(-4,12)

B' are (4×2,4×1)=(8,4)

and C' are (4×-2,4×-1)=(-8,-4).

<em>Hence the coordinate point which is not a coordinate of dilation is:</em>

<em>begin ordered pair 4 comma 12 end ordered pair  i.e. (4,12)</em>

3 0
3 years ago
How do i get 28 and 13 gallons to 17 gallons i really need help with it as soon as i can
iogann1982 [59]
Take 11 gallons out of 28 and put 4 more gallons in 13
8 0
3 years ago
A bag has four balls labeled A, B, C, and D.
denis-greek [22]

Answer:

b

Step-by-step explanation:

7 0
3 years ago
I have inserted the image below. This is a test so I would like the most correct answers and working out if possible
Georgia [21]

Answer: 3 * n = 15

5 students tried out for the baseball team.

Step-by-step explanation:

n is the amount of kids who tried to try out for the baseball team.

15 kids tried out for the hockey team, and that’s 3 times as many as the amount who tried out for the baseball team, so 3 times n = 15, or 3 * 5 =15

hope this helped!

7 0
3 years ago
Read 2 more answers
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