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Mumz [18]
3 years ago
5

Tell which equation you would choose to solve for one of the variables. Explain.

Mathematics
1 answer:
MissTica3 years ago
5 0

Answer:

step below

Step-by-step explanation:

x + 4y = 30

x – 2y=0

x= 2y

2y + 4y = 30

6y = 30

y = 5

x = 10

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The steps below show the incomplete solution to find the value of y for the equation 4y − 2y − 4 = −1 + 13: Step 1: 4y − 2y − 4
Maurinko [17]

Answer:

You stopped at 2y-4=12

If we add same number to both sides the equation will remain true. For example if we have 5=5, and we add 7 to both sides, we get 12=12 which is also true. Now let's do this with our equation. Add 4 to both sides(to have only y on the left side). We get 2y=16, hence y=8.

Answer. 2y=16

3 0
3 years ago
Which ordered pair is a solution of the inequality y < 3x + 1
Nata [24]

Answer:

c

Step-by-step explanation:

1=x

-3=y

then you plug it in. put the -3 in for the y and the 1 in for the x then you have the equation:

-3<3(1)+1

and solve it

-3<4+1

-3<5

3 0
2 years ago
Read 2 more answers
Quadratic functions g and k are showed below
padilas [110]
C would equal -3 because you are going up 9 units 
6 0
3 years ago
Marina has 2.5 lb of cashews. she puts 6 oz in a bag and gives the bag to her brother. what weight of cashews does marina have l
faust18 [17]
2.5/x = 1/16
cross mutiply
x = 40 oz

40 oz - 6oz = 34 oz
She has 34 oz or 2 1/8 pounds
4 0
3 years ago
Given sets X, Y, Z, and U, find the set Xn(X - Y) using the listing method.
Aliun [14]

Answer:

{f, a}

Step-by-step explanation:

Given the sets:

X = {d, c, f, a}

Y = {d, e, c}

Z ={e, c, b, f, g}

U = {a, b, c, d, e, f, g}

To obtain the set X n (X - Y)

We first obtain :

(X - Y) :

The elements in X that are not in Y

(X - Y) = {f, a}

X n (X - Y) :

X = {d, c, f, a} intersection

(X - Y) = {f, a}

X n (X - Y) = elements in X and (X - Y)

X n (X - Y) = {f, a}

6 0
3 years ago
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