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3 years ago

I need help bro!!!!!!!

Mathematics

1 answer:

konstantin123 [22]3 years ago

5 0

Answer:

The one that is on the bottom half and on the right side.

Step-by-step explanation:

(0,30) to (10,0)

Because the x value 0 represents the time in which the paint job started and ends in the value 10

While the y value 30 is the amount of paint he started with and ends with 0

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A chemist mixes a 25 % acid solution with a 45% acid solution to make 600 ml of a 30% acid solution. How much of each type of so

PilotLPTM [1.2K]

Answer:

25 % acid solution = 450ml

45% acid solution = 150ml

Step-by-step explanation:

Let

x = 25 % acid solution

y = 45% acid solution

x + y = 600

.25x + .45y = .30(600)

x + y = 600 (1)

.25x + .45y = 180 (2)

From (1)

x = 600 - y

Substitute x = 600 - y into (2)

.25x + .45y = 180

.25(600 - y) + .45y = 180

150 - .25y + .45y = 180

150 + .20y = 180

.20y = 180 - 150

.20y = 30

Divide both sides by .20

y = 30/0.20

= 150

y = 150ml

Substitute y = 150 into

x + y = 600

x + 150 = 600

x = 600 - 150

= 450

x = 450ml

25 % acid solution = 450ml

45% acid solution = 150ml

6 0

2 years ago

What is the product of (x-2)(x-6)? *

belka [17]

Answer:

$x^2-4x+12$

Step-by-step explanation:

$(x-2)(x-6)$

$x(x-6)-2(x-6)$

$x^2-6x-2x+12$

$x^2-4x+12$

7 0

3 years ago

Read 2 more answers

What is the lcm for 12,27,36

Verdich [7]

$\bold{Hey \ there!}\\ \bold{- \ LCM\ means\ \ Lowest\ Common\ Multiple} \\ \\ \bold{So,\ the\ LCM\ of\ 12,27,36\ is\downarrow}$

$\bold{12: 2^3\times3} \\ \bold{27:3^3\ or \ you\ could\ say:3*3*3}\\ \bold{36:2^2 \times3^2}$

$\italics{Note: just\ factor\ them\ out\ to\ find\ the\ LCM!}$

$\boxed{\boxed{\bold{Answer:108}}}\checkmark$

$\bf{Good\ luck\ on\ your\ assignment\ and\ enjoy\ your\ day!}$

$\frak{LoveYourselfFirst:)}$

3 0

3 years ago

Not a question. just wanted to say I'm making a wand and it looks pretty sick

zhannawk [14.2K]

Answer:

oh ok thanks for free points

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Plz help me, thank you

Kruka [31]

Answer:

$P=40(1.03526)^{t}$

Step-by-step explanation:

<u>Exponential Growth </u>

The natural growth of some magnitudes can be modeled by the equation:

$P=P_o(1+r)^{t}$

Where P is the actual amount of the magnitude, Po is its initial amount, r is the growth rate and t is the time.

The initial number of bacteria is Po=40 and it doubles (P=2Po) at t=20 min. With that point we can find the value of r:

$2P_o=P_o(1+r)^{20}$

Simplifying:

$(1+r)^{20}=2$

Solving for 1+r:

$1+r=\sqrt[20]{2}$

$1+r=1.03526$

The exponential function that models the situation is:

$\mathbf{P=40(1.03526)^{t}}$

4 0

3 years ago