How do you change -3 in x^-3 to be positive?

Answer: quantity of water added = 19.6 quarts

Step-by-step explanation:

Let x= quantity of water added

Then, Quantity of saline in 7 quarts solution  = 19% of 7 = 0.19 (7)=1.33 quarts [to remove % divide number by 100]

When x quarts water is added , the quantity of solution becomes = x+7

Quantity of saline in it= 5% of (x+7)= 0.05(x+7)

Now, quantity of saline remains same, so

[tex]1.33= 0.05(x+7)\\\\\Rightarrow\ 1.33x=0.05x+0.35\\\\\Rightarrow\ 1.33-0.35=0.05x\\\\\Rightarrow\ x=\dfrac{0.98}{0.05}=19.6[/tex]

Hence,  quantity of water added = 19.6 quarts

Answer:

y=x+4

Step-by-step explanation:

Slope is positive and it goes up by 1 so it is just 1 and the y-intercept is 4 so it is y=x+4

Answer:

The maximum height of the volleyball is 12.25 feet.

Step-by-step explanation:

The height of the volleyball, h(t), is modeled by this equation, where t represents the  time, in seconds, after that ball was set :

....(1)

The volleyball reaches its maximum height after 0.625 seconds.

For maximum height,

Put

Now put t = 0.625 in equation (1)

Hope this helps!!

Answer:

Step-by-step explanation:

Answer:

x = 6

Step-by-step explanation:

To solve, move all the x’s to one side and all the numbers. Remember when moving numbers to the other side of an equation, the sign changes from either a positive to a negative or vise versa.

9 + 3 = 4/3x + 2/3x

Next, add the like terms.

9+3=12

When adding fractions, add the numerator (top number), but first change denominator (bottom number) if not the same. Here, we don’t need to.

4/3x+2/3x=6/3x

So,

12 = 6/3x

Then, we have to divide each side by 6/3 to make the x alone.

12/6/3 = 6/3x/6/3

To divide with fractions, multiply the reciprocal (opposite number on number line):

12/1·3/6 = x

36/6 = x

6 = x

Answer:

x = 1

Step-by-step explanation:

7x-7=2x-2

5x = 5

x = 1

Answer:

30 bro cmon

Step-by-step explanation:

it's acute so the smallest would make sense cmon bruh u better than that

Answer:

The answer is 369/ 7n ^3

Step-by-step explanation:

You convert the mixed number into an improper fraction-

369/7 / n^3

Next you simplify the complex fraction-

369/ 7n ^3

The solution is- 369/ 7n ^3

Hope this helps you! :) <33

Answer: intrest is the last one but i cant answer the others sorry

Step-by-step explanation:

i tried

Let's see what to do buddy...

____________________________

Reminder:

[tex](a + b)(a - b) = {a}^{2} - {b}^{2} [/tex]

So we need to just Multiply above equations like this :

[tex]x + y = 70[/tex]

[tex]x - y = 40[/tex]

[tex](x + y)(x - y) = 70 \times 40[/tex]

[tex] {x}^{2} - {y}^{2} = 2800 [/tex]

____________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

Answer:

slope is -x. Or -1/1.

Step-by-step explanation:

U can use the slope formula.

Answer:

A: 2x+1= -1/4x+3

Answer:

25.50

Step-by-step explanation:

I took the test

Answer:

The answer (25.50) is correct.

Step-by-step explanation:

Use the diagram to subtract the amount of money to the artist from the artwork price.

Answer:

4 units to the left of 3 7 units to the left of 3 4 units to the right of 3 7 units to the right of 3

Step-by-step explanation:

Answer:

-4

Step-by-step explanation:

Add 3 units to the right

Subtract 7 units to the left

Total = 4 units to the left

Or you can say -4

I hope this helps you :)

Answer:

What is 18/4 Simplified? - 9/2 is the simplified fraction for 18/4.

Step-by-step explanation:

Answer:

- 9/2

Step-by-step explanation:

Answer:

x = 3 and x = -2/7

Step-by-step explanation:

you can multiple -6 by 7 = -42

and then find what adds into -19 but can multiply together to get -42.

In this case (x-21)(x+2) would work

then you have to divide out your 7 from both numbers,

(x-21/7)(x+2/7)

then you have to make them equal to zero

x-21/7 = 0                =   x = 21/7 = 3

x+2/7 = 0                 =   x = -2/7

so your final answer is x = 3 and x = -2/7

Answer: srry i think it is y = mx + b, where m is the slope and b is the y-intercept. Slope-intercept is the form used most often as the simplified equation of a line.

Step-by-step explanation: where m is the slope and b is the y-intercept. Slope-intercept is the form used most often as the simplified equation of a line.

Answer:

17

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

42/-6+5

-7+5 = -2

Answer:

The lines beside the -3 on the left invert the negative/positive.

Step-by-step explanation:

See answer

Answer:

50,000 + 3,000 + 200 + 70 + 4

Step-by-step explanation:

Expand. Set all non-zero digits by itself:

53,274 = 50,000 + 3,000 + 200 + 70 + 4

Remember to fill in 0 for all digits. They must keep their value.

~

Let, speed of car B is -x.

So, speed of car A is x + 10.

Relative speed of A w.r.t B is ,

[tex]v_{ab}=(x+10)-(-x)\\\\v_{ab}=2x+10\ mph[/tex]

So, time taken by A to travel 300 miles relative to B given by 3 hours .

[tex]v_{ab}=2x+10\\\\\dfrac{300}{3}=2x+10\\\\x = 45 \ mph[/tex]

Therefore, speed of car A is 45 + 10 = 55 mph.

Hence, this is the required solution.

Answer:

30−2(32+6)

=30−2(9+6)

=30−(2)(15)

=30−30

=0

Answer:

[tex] \huge{ \bold{ \boxed{ \tt{2}}}}[/tex]

Step-by-step explanation:

While performing the addition or subtract of like fractions , you just have to add or subtract the numerator respectively in which the denominator is retained same. Thenafter, obtained fractions should be reduced into lowest terms if there is any common on numerator and denominator.

Sum of like fractions = [tex] \sf{ \frac{Sum \: of \: their \: number}{Common \: denominator}} [/tex]

Difference of like fractions = [tex]\sf{ \frac{Difference \: of \: their \: numerator}{Common \: denominator}} [/tex]

[tex] \underline{ \text{Let's \: start}}: [/tex]

[tex] \sf{ \frac{2}{3} + \frac{4}{3} }[/tex]

[tex] \sf{ \: ➳ \: \frac{2 + 4}{3} }[/tex]

[tex] \sf{➳ \: \frac{6}{3} }[/tex]

[tex] \sf{➳ \boxed{2}}[/tex]

[tex] \text{Hope \: I \: helped!}[/tex]

[tex] \text{Best \: regards!}[/tex]

~[tex] \text{TheAnimeGirl}[/tex]

Answer:

1.5

Step-by-step explanation: