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Anna35 [415]
3 years ago
8

Can someone please help ?

Mathematics
1 answer:
den301095 [7]3 years ago
4 0

5x+4y=-2

3x+4y=10


Make one with negative coefficient to find first what is x then solve for y .


-1(5x+4y)= -1 (-2)

3x+4y=10


-5x-4y=2

+ 3x+4y=10

_________

-x = 12


Divide both sides by -2

-2x/-2=12/-2


X= -6


Now substitute your x into one of the equations to find y .


-5x-4y=2

-5(-6)+4y=2


30+4y=2


Subtract 30 both sides


-4y= 2-30


Divide both sides by -4


Y= -28/-4


Y= 7



Your answer is in point form (-6,7) meaning x is -6 and y is 7.

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5 times 395 using properties of operations
DochEvi [55]

Hello there!

<u><em>Answer: ⇒⇒=1975</em></u>

_______________________________________________________

Step-by-step explanation:

First you had to multiply by the number.

395*5=1975

1975 is the right answer.

___________________________________________________________

Hope this helps!

Thank you for posting your question at here on brainly.

Have a great day!

-Charlie

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6 0
3 years ago
A bag of stuffed animals contains 12 bears, 10 dogs, and 3 cats.
umka21 [38]
Well there is 13 possibilities so it would be 10/13
7 0
4 years ago
A farmer collected eggs from the henhouse. He can put 36 eggs in a carton. A carton will hold 6 eggs in a row How many rows does
emmasim [6.3K]
Im pretty sure its C idk
6 0
3 years ago
Read 2 more answers
What is the answer???
muminat

Answer:

21, 15

Step-by-step explanation:

12+9=21

the third side of a triangle must be equal to the two other sides added up to make it possible

also 15 if you're trying to make a possible right triangle

5 0
3 years ago
PLEASE HELP ME PLEASE PLEASE
mezya [45]
1)

Break up the irregular shape into two rectangles

12 * 4.5 = 54
2 * 5 = 10
54 + 10 = 64 cm^2

2)

Break up the irregular shape into a triangle and rectangle

24 * 8 = 192

To get the base of the triangle:
24 - 6 - 6 = 12
To get the height of the triangle:
16 - 8 = 8

1/2(12 * 8) = 48

192 + 48 = 240 yd^2

3)

Separate into triangle and semi circle

To get the base: 8 * 2 = 16

1/2(15 * 16) = 120

(pi (8)^2)/2 = 100.5

120 + 100.5 = 220.5 cm^2

4)

Separate half circle from rectangle

(pi (7.5)^2)/2 = 88.4

7 * 15 = 105

88.4 + 105 = 193.4 m^2

5)

Separate triangle from trapezoid

2.8 * 7 = 19.6

(7+9/2)(3.6) = 28.8

19.6 + 28.8 = 48.4 ft^2

6)

Separate semi circle from trapezoid

(pi(3)^2)/2 = 6.3

(6+10/2)(8) = 64

6.3 + 64 = 70.3 yd^2

8 0
3 years ago
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