Systems by elimination:
please help me..ASAP

Answer:

[tex]w = \frac{1}{3}b[/tex] and [tex]b = 3w[/tex]

Step-by-step explanation:

Represent white paint with w and black with b

Given

When w = 3; b = 1

Required

Determine the two equations

To get a gray paint, the w and b are needed in the following proportion:

[tex]3 * w = 1 * b[/tex] -----(1)

Solve for b

[tex]3 * w = b[/tex]

Reorder

[tex]b = 3 * w[/tex]

[tex]b = 3w[/tex] ---- This is an equation

To get another equation,

Recall that

[tex]3 * w = 1 * b[/tex]

Solve for w

[tex]3*w = b[/tex]

[tex]3w = b[/tex]

Make w the subject

[tex]w = \frac{1}{3}b[/tex]

Hence, the equations that show the relationship between w and b are:

[tex]w = \frac{1}{3}b[/tex] and [tex]b = 3w[/tex]

Answer:

Yes it is absolutely right.

Answer:

405

Step-by-step explanation:

Don't be confused about setting up the proportion. White has to go with white which is 4 and brown goes with 5.

The total is 9.

so proportion will look like this.

4/9 = 180/x          Cross Multiply

Before I solve this, notice that the white data is on top of the fraction, and the total is on the bottom of the fraction on either side of the proportion.

4x = 180 * 9

4x = 1620

x = 1620 / 4

x = 4 0 5

Notice that the brown is going to be bigger than the white but not by much

White                            180

Brown       405 - 180 = 225

Total                              405

Answer: it’s 35 mi/h

Step-by-step explanation:  

The constant speed is 35 miles per hour. Therefore, option C is the correct answer.

The speed formula can be defined as the rate at which an object covers some distance. Speed can be measured as the distance travelled by a body in a given period of time. The SI unit of speed is m/s.

The slope of rate of change of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

From the graph,

Constant speed = 35 miles/1 hour

= 35 miles per hour

Therefore, option C is the correct answer.

To learn more about the speed, distance, and time visit:

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Answer:

I got d b and c  I am not  sure pls don't use my answers if you don't want to and don't mark brainiest again I just wanted to try to help and I couldn't fully understand if I'm wrong I apologize and god bless you

Answer: You should look it up!

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

i think it is b the answer is b

Answer:

The first riddle is Age. Some people love their age, some people hate their age. Age can change appearances and thoughts because as you mature you view things differently. If you take care of yourself, you will become die older than most people. Some people are fooled by age, they think someone is older or younger than they really are. Some people don't know someone's age, so it is a mystery. Some people try and hide their age. Age never decreases.

The second riddle is a shadow. A shadow is only one color, but it can be any shape or size. Shadows are stuck at the bottom, but it easily moves. Shadows appear in the sun, but not when it is raining because of the clouds. Shadows do no harm, and they can't feel anything.

Step-by-step explanation:

:)

Answer:

The answer is A. One graph uses an open circle, but the other graph uses a closed circle. Also, the rays use arrows that point in opposite directions, but they have the same endpoint.

Answer:

16.05

Step-by-step explanation:

multiplication

Answer:

16.05

Step-by-step explanation:

Answer:

She spent $5.05 for her total purchase.

Step-by-step explanation:

First, you should convert the fractions into decimals to make it easier, which would make it, 1.5, .25, 1.

Second, multiply 1.5 by 2 because there are 1.5 pounds which are payed for $2.00. Do the others fractions corresponding with the number of pounds and the cost this same way. 1.5 multiplied by 2 is 3. .25 multiplied by 1.60 is 0.4, 1 multiplied by 1.65 is 1.65.

Lastly, Add it all up, 3+0.4+1.65=5.05

Answer:

M

Step-by-step explanation:

Answer:

0.83

First, we convert the fraction to a decimal number by dividing the numerator by the denominator:

5 / 6 = 0.833

There are two parts to the decimal number above:

Integer Part: 0

Fractional Part: 833

Now, we will make the Fractional Part just two digits (nearest hundredth) by using our rounding rules.*

In this case, Rule I applies, so 5/6 (or 0.833) rounded to the nearest hundredth in decimal format is:

0.83

Answer:

g(3) = 6*2 = 12

Step-by-step explanation:

In this problem you're given more information than is necessary to solve it.  

g(x) = f(x)*h(x) is the product of functions f and h.

If x has the value 3, then:

f(x) = f(3) = 6, h(x) = h(3) = 2.  Thus, when x = 3 we have g(x) = g(3) = 6*2 = 12

The value of g(3) using g(x) = f(x)·h(x) is 12.

Given that, g(x) = f(x)·h(x).

Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

Put x=3 in g(x) = f(x)·h(x), we get

g(3) = f(3)·h(3)

⇒ g(3) =6×2

= 12

Therefore, the value of g(3) using g(x) = f(x)·h(x) is 12.

To learn more about the function visit:

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Answer:

c

Step-by-step explanation:

they are simple way to vote

Answer:

Is X 10?

Step-by-step explanation:

Answer:

3 Months.

Step-by-step explanation:

1 Month: J = $160 P = $200

2 Months: J = $200 P = $220

3 Months: J = $240 P = $240

Answer:

Undefined.

Step-by-step explanation:

The line given on the graph is vertical.

All vertical lines have an undefined slope.

This is because that it has no horizontal (run) change.

If you used the slope formula for the points, the denominator of the fraction will be a zero, and and you cannot divide by zero.

Hope this helps!

Brainilest is appreciated.

Answer:

10

Step-by-step explanation:

Answer:

6+ 3q+15

Step-by-step explanation:

I hope this is what you needed!

Answer:

2 times 5.10=10.2

2 times 4.50=9

10.2+9=19.2

19.2 times 21.22

=407.424

Step-by-step explanation:

Answer:

You have to post the picture so we can help.

Step-by-step explanation:

Answer:

1/16 and 1/16

Step-by-step explanation:

i just did it on edenguity

Answer:

2

Step-by-step explanation:

I AM A BLOODY GENIUS BRUH

Answer:

Step-by-step explanation:

y2-y1/x2-x1

1+3

3-1

your slope is 4/2 or 2. keep going down to find what y is when x is 0, which happens to be -5

so now you have a slope and a y intercept you can solve  like y=mx+b where m is your slope and B is your y intercept

y=2x-5 is your answer

2 1/4 x 1 1/3 = 9/4 x 4/3 = 3/1 x 1/1 = 3/1 or 3

Key: Keep, change, flip

Answer:

2 4/12  or if simplified 2 1/3

Step-by-step explanation:

Answer:

40.9

Step-by-step explanation:

8+10+8.9+10+4=40.9

hope this helps :3

if it did pls mark brainliest

Answer:

40.9 ft

Step-by-step explanation:

Perimeter is the sum of lengths of all outer sides of the shape. Since the rectangle has two pairs of parallel lines of the same length... It is safe to assume that the unmarked side length is 10 ft (just like it's parallel counterpart)

Now it is a simple matter of adding all of the outer sides.

8ft + 10 ft + 10 ft + 8.9 ft + 4 ft = 40.9 ft

Answer and Step-by-step explanation:

A. 4 inches: An object that's 4 inches is about 2.54 centimeters or 25.4 millimeters. An business envelope is typically about 4 inches by 9 inches for example.

B. 6 feet: A 6 feet object is quite big when compared to just 4 inches. A feet is 12 inches hence 6 feet is 72 inches. A very tall human being is typically 6 feet.

C. 1 meter: A meter is about 39.37 inches hence it is quite big when compared to a feet. A baseball bat is one meter long.

D. 5 yards: A yard is 36 inches hence a bit smaller than a meter. A trampoline could be 5 yards for example

E. 6 centimeters: one centimeter is 0.394 inches hence smaller than an inch. A 6 centimeters object for example is pencil for writing.

F. 2 millimeters: a millimeter is 0.0394 inches hence smaller than a centimeter and an inch. An orange seed could be 2 millimeters long

G. 3 kilometers: one kilometer is 39370.079 inches hence a kilometer is bigger than inches, meter, feet, yards, centimeters, millimeters. A very big tree could be 3 kilometers long

The expression that is equivalent to 1/2a - 4 is 1/2 (a - 16)

Given the expression 1/2a - 8, to get the equivalent expression, we will factor out 1/2 from the expression to have:

Note that we will need to multiply the second term by the denominator of the fraction to neutralize the fraction.

Simplify to have:

Hence the expression that is equivalent to 1/2a - 4 is 1/2 (a - 16)

Learn more on factors here: https://brainly.com/question/11261808

Answer:

Answer is 1/2 in the first box then 8 in the second one.

Step-by-step explanation: I’m doing the i-Ready quiz too