Six gallons of a salt solution consists of 35% salt. It is the result of mixing a 40% solution with a 30% solution. How many gallons of each of the solutions was used? Let x= the number of gallons of the 40% solution and y= the number of gallons of the 30% solution. The corresponding modeling system is {x+y=60.4x+0.3y=0.35(6). Solve the system by using the method of substitution.

Answer:

[tex]\sf\longmapsto \: x = 4[/tex]

Step-by-step explanation:

[tex]\sf\longmapsto \: 4x = 16[/tex]

[tex]\sf\longmapsto \: x = \frac{16}{4} [/tex]

[tex]\sf\longmapsto \: x = 4[/tex]

Answer:

Cool can i come?

Step-by-step explanation:

Answer:

Yes! Sure I will, just follow me and I will follow you!

Then I get the notifications of your doubts.

Step-by-step explanation:

I love helping

Answer:

3 Minutes 42 Seconds

Step-by-step explanation:

Half of 7 minutes is 3 minutes and 30 seconds, half of 24 seconds is 12 seconds. If you add the halfed times together you get a total of 3 minutes 42 seconds.

Answer:

183

Step-by-step explanation:

If they are two consecutive odd numbers, than these two numbers will be close to half of the sum (364).

364/2=182

Now Find the two odd numbers in between 182, which are 181 and 183.

I had this type of question a few times recently, and this method worked every time :).

Bonus information:

For two consecutive odd/even numbers, find the half of the sum.

For three consecutive odd/even numbers, start off by finding the third of the sum. And so on...

Hope this helped! :D

Answer:

You forgot to put the picture please redo and ill edit my answer

Step-by-step explanation:

Answer:

If you are looking for the number of faces/sides….

Step-by-step explanation:

1:6

2: 5

3: 8

4:5

5:5

6:5

Hope this helps

Dont forget to smash that heart at the bottom <3

Have a great day,you’re amazing !

Plz Mark Brainliest

Lmk if its right I’m not sure whether number 2 is 4 or 5

I haven’t done shapes in a while .-.

Answer:

A child experiencing emotional.........

Step-by-step explanation:

7:8:9=10.5:12:13.5.

hope this helps you.

Answer:

5 would be the dependent variable.

Step-by-step explanation:

5 would be the dependent variable because that is the number that is that depends on the others in the equation for it to be the final answer.

Answer:

180

Step-by-step explanation:

k = 72/2=36

y =kx

y =36(5)

y = 180

Answer

2.) 4x - 2y = -8

The equation of the line having an x-intercept of -4 and y-intercept of 2 is 2x - 4y = -8 so, option 4 is correct.

A simple line in Euclidean geometry. A line, according to Euclid, is the distance between two points and can stretch forever in either direction. While Euclid's initial definition is now regarded as a line segment, such an extension in both directions is now thought of as a line.

Given:

The lines with an x-intercept of -4 and y-intercept of 2,

The coordinates can be written as (-4,0) and (0,2),

Write the equation of the line as shown below,

y - 2 = (2 - 0) / (0 - (-4)) (x - 0)

y - 2 = 2 / 4 x

y - 2 = 1 / 2 x

2y - 4 = x

x - 2y = -4 or 2x - 4y = -8

Thus, the equation of the line is 2x - 4y = -8.

To know more about the line:

https://brainly.com/question/2696693

#SPJ2

Answer:

$8,704

Step-by-step explanation:

Answer:

The  tenths place

4 is in the tenths place of 7.486

Step-by-step explanation:

Answer: 0.2

happy learning

Answer:

12 Super Giant Pizzas

Step-by-step explanation:

36 ÷ 3 = 12

Answer:

Step-by-step explanation:

You will need to get 12 pizzas

Explanation:36÷3=12

Answer:

We want to find the value of 'x' and we are asked to set up an equation to find the value of x. In equation we must remember to get all the numerical values to one side and all the non-numerical values to the other while remembering to keep the equation balanced for example if we add 4 on one side we must do it to the other side to keep the equation balanced so, → x + 5.2 + 11.1 + 6.4 = 34.6 ⇒ Simplify equation → x + 22.7 = 34.6 ⇒ Minus 22.7 from both sides to isolate x → x = 11.9 feet

Step-by-step explanation:

mark brainliest

Answer:

1.08 feet

Step-by-step explanation:

5.2+6.4+11.1+x = 34.6

11.1x = 34.6 - 22.7

11x = 11.9

x = 11.9/11

1.08 feet

Answer:

C

Step-by-step explanation:

To write the equation of line when slope and one point is given

[tex]y2 - y1 = m(x2 - x1)[/tex]

here m = 3/4

(x1,y1) = 3,-2

Substitute all the values in Formula

[tex]y + 2 = \frac{3}{4} (x - 3) \\ y + 2 = \frac{3}{4} x - \frac{9}{4} \\ y = \frac{3}{4} x - \frac{9}{4} - 2 \\ = \frac{3}{4} x - \frac{17}{4} \\ 4y = 3x - 17 \\ - 3x + 4y = - 17[/tex]

multiply by 4 on both sides

[tex]4y = 3x - 17 \\ - 3x + 4y = - 17[/tex]

Answer:

cr qe deobpaase r

Step-by-step explanation:

Answer:

9375

Step-by-step explanation:

x=weekly cost

direct labor= 30/100*x

raw aterial= 2000+2*2000=6000

x=0.3x+6000+0.06x

x-0.36x=6000

0.64x=6000

64x=600000

x=9375

Answer:

-4/4 = -1

Step-by-step explanation:

yeah-ya...... right?

Answer:

B. The slope is –400

Answer: -400

Step-by-step explanation:

Answer:

y =  4x - 3

Step-by-step explanation:

When writing an equation of a line, keep in mind that you always need the following information in order to determine the linear equation in slope-intercept form, y = mx + b:

1. 2 sets of ordered pairs (x, y)

2. Slope (m)

3. Y-intercept (b)

First, we need to choose 2 points from the graph to solve for the slope:

Let (x1, y1) = (0, -3)

(x2, y2) = (1, 1)

Use the following slope formula:

[tex]m = \frac{y2 - y1}{x2 - x1}[/tex]

Substitute the values of the coordinates into the formula:

[tex]m = \frac{y2 - y1}{x2 - x1} = \frac{1 - (-3)}{1 - 0} = \frac{1 + 3}{1} = \frac{4}{1} = 4[/tex]

Therefore, the slope (m) of the line = 4.

Next, we need the y-intercept, (b). The y-intercept is the y-coordinate of the point where the graph of the linear equation crosses the y-axis. The y-intercept is also the value of y when x = 0. The y-coordinate of the point (0, -3) is the y-intercept.  Hence, the y-intercept (b) = -3.

Given our slope, m = 4, and the y-intercept (b) = -3, the linear equation is:

y = 4x - 3

Please mark my answers as the Brainliest if you find my explanations/solution helpful :)

Answer:

1) = 9³

2) = 4*4*4*4*4

   = 4 to the fifth power

Step-by-step explanation:

Answer:

Step-by-step explanation:

2 over 3 to the power of 2 + 5 × 2 − 4

(2/3)^2 +5×2−4

=4/9 + 10-4

=4/9+10−4

=4/9+6

= [tex]6 \frac{4}{9} [/tex]

Therefore, 6 4/9 is ur answer

Answer:

you are 15

Step-by-step explanation:

9-4=5

5x3=15

Answer:

1/6 is the probability.

There are only 2 out of 12 options that have a 2 at the one's place(2/12), which can be simplified into 1/6

Answer:

.75

Step-by-step explanation:

$12 / 16 = $0.75