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3 years ago

HELP!!! I WILL MARK BRAINLEST

Mathematics

2 answers:

skad [1K]3 years ago

6 0

Answer:

you have the correct one selected.

Step-by-step explanation:

LekaFEV [45]3 years ago

3 0

Answer: 2nd one

Step-by-step explanation:

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Dalia used a balancing move to begin to solve the

In-s [12.5K]

To combine like terms and single out one term to take it easier to solve, the 6x was moved to the other side to combine like terms.
Subtracting 6x from 10x which is 4x

8 0

3 years ago

Find the slope of the line that passes through (2, 11) and (7, 4).

EleoNora [17]

Answer:

$\large\boxed{-\dfrac{7}{5}}$

Step-by-step explanation:

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (2, 11) and (7, 4).

Substitute:

$m=\dfrac{4-11}{7-2}=\dfrac{-7}{5}=-\dfrac{7}{5}$

6 0

3 years ago

1+1 equals 2 plus 3 get brainlist if u answer first

dusya [7]

Cool thanks bro I appreciate it

7 0

3 years ago

Read 2 more answers

Which answer describes the transformation of f(x)=x2−1 to g(x)=(x−1)2−1 ?

Talja [164]

$f(x)=a(x-h)^2+k\ \text{where (h; k) are coordinates of the vertex}$

$f(x)=x^2-1\ \ \ vertex (0; -1)\\\\g(x)=(x-1)^2-1\ \ \ vertex(1;-1)$

Answer: a horizontal translation 1 unit right.

6 0

3 years ago

Traveling math word problem - thank you! :)

Anni [7]

We are given:

car and train leave at the same time

average velocity of car = 50 miles/hour

average velocity of train = 70 miles/hour

train arrives 2 hours early

Assuming variables and making equations!

let the time taken by the train = t hours

since the car arrived late, it took more time as compared to the train

time taken by the car = t + 2 hours

since the distance from Pasadena to Sacramento doesn't change, both the vehicles covered the same distance, d

Distance travelled by the car:

d = 50 $\frac{miles}{hour}$ * (t+2) hours [distance = velocity * time]

d = 50(t+2) miles

rewriting in terms of t

$t = \frac{d-100}{50}$

Distance travelled by the train:

d = 70 $\frac{miles}{hour}$ * t hours

d = 70t miles

rewriting in terms of t

$t = \frac{d}{70}$

now we have two expressions for t, both of which are equal because t is just the time taken by the train

Finding the distance:

$t = \frac{d-100}{50}$

$t = \frac{d}{70}$

because t is the same:

$\frac{d-100}{50} = \frac{d}{70}$

$\frac{d-100}{5} = \frac{d}{7}$

7(d - 100) = 5(d)

7d - 700 = 5d

(7d - 5d) - 700 = 0 [subtracting 5d from both sides]

2d = 700 [adding 700 on both sides]

d = 350 miles [dividing both sides by 2]

The distance between Pasadena and Sacramento is 350 miles!

7 0

2 years ago