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valentina_108 [34]
2 years ago
10

-3x - y = 2 and 12x – 4y = 4

Mathematics
1 answer:
Mekhanik [1.2K]2 years ago
3 0

Answer:

x = (-4/3)

y = (-5)

Step-by-step explanation:

there ya go, I think this was the answer you were looking for. :)

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Of the 150 students that attended the science camp, 82 were sixth graders. Marco says that less than half of the campers were si
erastovalidia [21]

Answer:

Incorrect

Step-by-step explanation:

150 students are 100%,

82 students are x%

(82*100)/150=54,67%, so  that is more than half of all students

4 0
3 years ago
Read 2 more answers
Write 8 in scientific notation
mihalych1998 [28]

Answer:

8 x 10 ^0

Step-by-step explanation:

the reason why is because there is no 0 behind the 8 so the exponent could not say a number so it is just 0

7 0
3 years ago
Ellen has a bag with 3 red marbles and 2 blue marbles in it. She is going to randomly draw a marble from the bag 300 times, putt
Contact [7]

Answer:

120

Step-by-step explanation:

Blue marbles = 2

Red marbles = 3

Total marbles = 2 + 3 = 5

If a marble is drawn 300 times ;prediction for the number of times a blue marble will be drawn :

P(drawing a blue marble) = number of blue marbles / total number of marbles

= 2 /5 = 0.4

Predicted number of times blue is drawn in 300 selections :

300 * 0.4 = 120

Approximately 120 times

3 0
3 years ago
Calculate the force exerted on the blown dart. A dart weighing 0.0056kg is blown and travels 4.85m. The change in velocity for t
dlinn [17]

Answer:

0.15N

Step-by-step explanation:

Given data

Mass= 0.0056kg

distance=  4.85m

Velocity= 11.4m/s

The expression for the force is

F= mv^2/r

substitute

F=  0.0056* 11.4^2/4.85

F=  0.0056*129.96/4.85

F= 0.727776/4.85

F= 0.15N

Hence the force is 0.15N

7 0
3 years ago
Given scalene triangle DEF, explain how to find locus of points equidistant from DE EF DF using incenter
exis [7]
Points equidistant from DE EF are in the bisector of angle DEF
points equidistant from EF DF are in the bisector of angle EFD
the sought after point is the intersection of bisectricess of triangle




5 0
3 years ago
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