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2 years ago

Which equation is modeled below?

Mathematics

1 answer:

alina1380 [7]2 years ago

5 0

Answer:

D. 3x+(-2)=2x+4

Step-by-step explanation:

There is 2 red cubes of -1 so it has to be in parentheses, not combined like letter C.

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A bag has 2 blue marbles and 16 red marbles. half of the red marbles are made of plastic. a marble is selected a random from the

bija089 [108]

there are 2 blue marbles, 8 red marbles, and 8 plastic red marbles

there are 18 marbles in total

8/18

6 0

2 years ago

Read 2 more answers

Tanya [424]

Answer:

$2.50$

Step-by-step explanation:

Given

$(x_1,y_1) = (-1,0.8)$

$(x_2,y_2) = (0,2)$

$(x_3,y_3) = (1,5)$

$(x_4,y_4) = (2,12.5)$

Required

The rate of change (b)

The above graph is represented as:

$y = ab^x$

For: $(x_2,y_2) = (0,2)$ ;

We have:

$y = ab^x$

$2 = a * b^0$

$2 = a *1$

$2 = a$

$a = 2$

For $(x_3,y_3) = (1,5)$ ,

We have:

$y = ab^x$

$5 = a * b^1$

$5 = a * b$

Substitute $a = 2$

$5 = 2 * b$

Divide by 2

$2.5 = b$

$b = 2.5$

<em>Hence, the rate of change is 2.50</em>

7 0

2 years ago

PLZZ HELP WILL MARK BRAINLIST!!!!

DedPeter [7]

X intercept- (0,250)
Y intercept- (0,100)
If you want me to explain I can!

4 0

2 years ago

A bathtub contains 12 gallons of water. With these 12 gallons, the bathtub is only 30% full. How many gallons of water can the b

Pachacha [2.7K]

Answer:

40 gallons

Step-by-step explanation:

Let the number of gallons that would completely fill the bathtub be represented by N.

Since 12 gallons of water gives 30% of the number of gallons to fill the bathtub, then;

30% of N = 12

$\frac{30}{100}$ x N = 12

30N = 12 x 100

30N = 1200

divide both sides by 30,

N = $\frac{1200}{30}$

= 40

The number of gallons that would completely fill the bathtub is 40 gallons.

6 0

2 years ago

Someone please help me on this and pls give brief and direct steps for this 7x-15=55. Thanks!

Lubov Fominskaja [6]

Step-by-step explanation:

7x - 15 =55

7x= 55 +15

7x =70

X=70/7

X=10

Hope this helps..

4 0

2 years ago