2 years ago

Help me pleaseI don't know how to do this

Mathematics

2 answers:

Vilka [71]2 years ago

8 0

I don’t either
Can someone please teach me

Angelina_Jolie [31]2 years ago

6 0

X = 1, Y = -1

You could do substitution :
x - y = 2
x = 2 + y
———————-
5(2 + y) + y = 4
10 + 5y + y = 4
10 + 6y = 4
6y = -6
y = -1
———————-
x - (-1) = 2
x + 1 = 2
x = 1
——————————
CHECK ANSWER :
5(1) + (-1) = 4
1 - (-1) = 2

You might be interested in

60 pOINTS HELP PLEASE 4. A 20-kg child is tossed up into the air by her parent. The child is 2 meters off the ground traveling 5

Solnce55 [7]

K.E=0.5mv^2
GPE=mgh
The child has both K.E and GPE
$ke = 0.5 \times 20 \times {5}^{2} \\ ke = 10 \times 25 \\ ke = 250 \: joules$
$gpe = 20 \times 9.81 \times 2 \\ gpe = 40 \times 9.81 \\ gpe = 392.4 \: joules$
g is taken as 9.81

6 0

3 years ago

The perimeter of a rectangle is 42 inches. If the width of the rectangle is 6 inches, what is the length?

snow_lady [41]

Answer:

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Given that cos theta = -12/13 and theta is in the second quadrant, find this function. sin theta=

elena-14-01-66 [18.8K]

5/13

The x value is negative (second quadrant). 13 is the hypotenuse. So the missing side is 13^2 = (-12)^2 + y^2.

Sin theta is the opposite (5) over hypotenuse (13).

3 0

3 years ago

-2x+6<4 or 7x+1<-13 what is the answer

Juliette [100K]

I guess x<1 and x<-2

7 0

2 years ago

Read 2 more answers

In the parallelogram below, AB=2x+8 and CD=5x-1. What is the length of AB?

pshichka [43]

Answer:

AB = CD