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3 years ago

12

Need help i have attached images

1 answer:

Colt1911 [192]3 years ago

7 0

Combine multiplied terms into a single fraction
-3/7m=12
-3m/7=12

Multiply all terms by the same value to eliminate fraction denominators
-3m/7=12
7x-3m/7=7x12

Cancel multiplied terms that are in the denominator
7x-3m/7=7x12
-3m=7x12

Multiply the numbers
-3=7x12
-3m=84

Divide both sides of the equation by the same term
-3m=84
-3m/-3=84/-3

Simplify
Cancel terms that are in both the numerator and denominator
Divide the numbers

m=-28

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A store started off the day with 32 500 items and finished with 30 824 in stock HOW MANY ITEMS SOLD (“the difference”)

djyliett [7]

Answer:

1676

Step-by-step explanation:

The store started with 32500 items and finished the day with 30824 items.

Intial value = 32500

Final value = 30824

Difference = Initial value - Final value = 32500 - 30824 = 1676

The store sold 1676 items in the day

6 0

3 years ago

Solve this pleasee!!!!!!!!!!!

Sholpan [36]

Answer:

1) Solution (2,-3)

2) Solution (-1, $-\frac{3}{2}$ )

3) Solution ( $\mathbf{-\frac{1}{2},-\frac{5}{2}}$ )

Step-by-step explanation:

We need to solve equations using elimination

1) $2x+2y=-2\\3x-2y=12$

Let:

$2x+2y=-2--eq(1)\\3x-2y=12--eq(2)$

Adding both equations:

$2x+2y=-2\\3x-2y=12\\--------\\5x=10\\x=\frac{10}{5}\\x=2$

We get value of x = 2

Now, put value of x into equation 1 to find value of y

$2x+2y=-2\\Put\:x=2\\2(2)+2y=-2\\4+2y=-2\\2y=-2-4\\2y=-6\\y=-6/2\\y=-3$

So, we get y = -3

Solution (2,-3)

2) $4x-2y=-1\\-4x+4y=-2$

Let:

$4x-2y=-1--eq(1)\\-4x+4y=-2--eq(2)$

Adding both equations

$4x-2y=-1\\-4x+4y=-2\\------\\2y=-3\\y=\frac{-3}{2}$

We get: y= -3/2

Now find value of x by putting value of y in eq(1)

$4x-2y=-1\\Put\:y=\frac{-3}{2}\\4x-2( \frac{-3}{2})=-1\\4x+3=-1\\4x=-1-3\\4x=-4\\x=\frac{-4}{4}\\x=-1$

We get x = -1

Solution (-1, $-\frac{3}{2}$ )

3) $x-y=2\\x+y=-3$

let:

$x-y=2--eq(1)\\x+y=-3--eq(2)$

Add both equations:

$x-y=2\\x+y=-3\\-----\\2x=-1\\x=-\frac{1}{2}$

We get x = -1/2

Now, put value of x in equation 2

$x+y=-3\\-\frac{1}{2}+y=-3\\y=-3+ \frac{1}{2}\\y=\frac{-6+1}{2}\\y=\frac{-5}{2}$

We get y = -5/2

Solution ( $\mathbf{-\frac{1}{2},-\frac{5}{2}}$ )

7 0

3 years ago

Need help solving this problem

Digiron [165]

2x^3+9, I just used an online calculator

7 0

4 years ago

A new soft drink is being market tested. a sample of 400 individuals participated in the taste test and 80 indicated they like t

Ilya [14]

Answer:

Step-by-step explanation:

p/100* 400=80

*100 *100

400p=8000

:400 :400

p=20

With 5% significant level I think we consider that 22% likes the drink

3 0

3 years ago

Fast brainliest for u if u fast answer

sergiy2304 [10]

Answer:

It's 1/21

cuz if u divide them that what i got

Step-by-step explanation:

7 0

3 years ago