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babymother [125]
3 years ago
6

What is the value of y in this system of equations?

Mathematics
2 answers:
Georgia [21]3 years ago
6 0

Answer: Y equals -6

Step-by-step explanation:

mote1985 [20]3 years ago
5 0

Answer:

-21

Step-by-step explanation:

-6x + 2y = -18.........(i)

-3x - 2y = 54...........(ii)

add equ.(ii) to equ. (i)

(-6x + [-3x]) + (2y + [-2y]) = -18 + 54

-9x = 36

x = -4

sub x= -4 into equ (i)

-6(-4) +2y = -18

24 + 2y = -18

24 +18 = -2y

42 = -2y

y = -21

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You weigh a gallon of liquid in science class and learn that it is approximately 7.7 pounds. You pass the liquid to the next gro
IceJOKER [234]

Answer:

7.7 pounds = 3.5 kilograms

Step-by-step explanation:

Given that,

Weight of a gallon of liquid = 7.7 pounds

We need to find weight in kilograms.

We must know the relation between pounds and kilograms and it is as follows :

1 kilogram = 2.20 pounds

or

1 pounds = (1/2.2) kilograms

7.7 pounds = (7.7/2.2) kilograms

= 3.5 kilograms

Hence, 7.7 pounds is equal to 3.5 kilograms.

4 0
3 years ago
How many grams in a kilo gram
HACTEHA [7]
There are 1,000 grams in a kilogram

7 0
3 years ago
(-1,2), (-1,-5) can you solve this for me
lisabon 2012 [21]

Answer:

Use FOIL I helped with what I could I don't fully understand the problem but I'm pretty sure FOIL needs to be used to solve.

4 0
3 years ago
Read 2 more answers
Y/3 + 8 = -2 solve for y<br> a. -30<br> b. -18<br> c. 18<br> d. 30
Rainbow [258]

Answer:

\large\boxed{a.\ -30}

Step-by-step explanation:

\dfrac{y}{3}+8=-2\qquad\text{subtract 8 from both sides}\\\\\dfrac{y}{3}+8-8=-2-8\\\\\dfrac{y}{3}=-10\qquad\text{multiply both sides by 3}\\\\3\!\!\!\!\diagup^1\cdot\dfrac{y}{3\!\!\!\!\diagup_1}=(3)(-10)\\\\y=-30

5 0
3 years ago
Luke has some boxes that are all cubes of the same size.
Scrat [10]

Answer:

The height of a pile of 5 equal sized boxes is 95cm.

Step-by-step explanation:

We know that 1 pile of 4 is 76 cm. All we have to is divide this by 4 to find how tall one box is.

76/4 = 19.

This means that one box is 19 cm tall.

Now we will add 19cm to 76cm.

19 + 76 = 95

The height of a pile of 5 equal sized boxes is 95cm.

<em>~CaityConcerto</em>

8 0
3 years ago
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