During a science experiment, your teacher does a demonstration. She takes a
small piece of rope, weighs it to find its starting weight, burns it, and then
weighs it again. The final mass of the product is different from the starting
weight of the reactant.
Why is the final mass different? Does this mean that the product has less
mass? Why or why not?

Answer:

The answer is 5

Step-by-step explanation:

3+2=5

Question 1=  $7,620

Question 2 (a) $3,211

Question 2 (b) $9,828

Answer: z=2

Step-by-step explanation:

Answer:

y = -3x + 12

Step-by-step explanation:

The slope of parallel line is the same as the original line.

If the x-intercept is 4, this as a point can be stated as (4, 0)

We can now solve for the y-intercept.

y = -3x + b

0 = -3(4) + b

0 = -12 + b

12 = b

Put everything we solved for back into the formula [ y = mx + b ]

y = -3x + 12

Best of Luck!

Answer:

6x+24

Step-by-step explanation:

The simplified form of the expression 6(x + 4) is 6x + 24.

We have,

To simplify the expression 6(x + 4), we can apply the distributive property of multiplication over addition.

The distributive property states that when we have a number multiplied by a sum of terms, we can distribute the multiplication to each term separately and then simplify.

In this case, we have 6 multiplied by the sum (x + 4). Applying the distributive property, we can multiply 6 by both x and 4:

6(x + 4) = 6 * x + 6 * 4

Simplifying further:

6x + 24

Therefore,

The simplified form of the expression 6(x + 4) is 6x + 24.

Learn more about expressions here:

https://brainly.com/question/3118662

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Answer:

1

Step-by-step explanation:

Multiply 1/3 x 1 so you can simplify 1/3 to 1/3 but other wise 2/6 is 1/3 3/9 is 1/3 and etc

Answer:

x=24 y=15

step by step solution:

Answer:

12 weeks

Step-by-step explanation:

every 5 weeks marcus lost 7.5 pounds (232 - 224.5)

or 1.5 per week

so 232 - 214 (start to goal) is a total of 18 pounds

18/1.5 = 12 weeks

Answer:

216

Step-by-step explanation:

.48 * 450 = 216

Answer:

There are 216 girls in that school.

Step-by-step explanation:

hope this helps! have a great day.

the midpoint is x1 and y10.5

Answer:

(1, 10.5)

Step-by-step explanation:

X-  6 + -4 = 2/2 = 1

Y-   5 + 16 = 21/2 = 10.5

You add the x coordinates together then divide by 2, then do the same with the y coordinates.

Answer:

+45

Step-by-step explanation:

a deposit is a sum of money placed or kept in a bank account, usually to gain interest

Answer:

C

Step-by-step explanation:

Answer:

This could easily be answered with a culculator but the answer is 20.

Step-by-step explanation:

5x4=20

Answer:

The first one is -28x

Step-by-step explanation:

2^2x is 4x and 4x-32x is -28

Answer:

7 hours!

Step-by-step explanation:

Answer:

3/5

Step-by-step explanation:

all you have to do is get the fraction to its lowest point and you get 3/5.

Given:

The growth of a sample of bacteria can be modeled by the function

[tex]b(t)=100(1.06)^t[/tex]

where, b is the number of bacteria and t is time in hours.

To find:

The number of total bacteria after 3 hours.

Solution:

We have,

[tex]b(t)=100(1.06)^t[/tex]

Here, b(t) number of total bacteria after t hours.

Substitute t=3 in the given function, to find the number of total bacteria after 3 hours.

[tex]b(t)=100(1.06)^3[/tex]

[tex]b(t)=100(1.191016)[/tex]

[tex]b(t)=119.1016 [/tex]

Therefore, the number of total bacteria after 3 hours is 119.1016.

Answer:

9.9lb

Step-by-step explanation:

2.2*4.5=9.9

Answer:

9.9 lb

Step-by-step explanation:

4.5 x 2.2 = 9.9

Answer:

10%

Step-by-step explanation:

so

3 cupcakes had sprinkles

27 didn't have sprinkles

which means that there are a total of 30 cupcakes, (because 3 + 27 is 30)

so then set up a proportion

part/whole = percent/one hundred

substitute in the given values

3 / 30= precent/100

simplify

1/10 = precent/100

you don't have to use cross products here because it is pretty obvious that 10 * 10 = 100 so then just multiply 1/10 by 10 and you get your answer

percent = 10

Answer:

0

I hope this helps!

Answer:

y = 81/34

Step-by-step explanation:

-96+34y=-15

-96+34y+96=-15+96

34y=81

34y/34 = 81/34

y= 81/34

Answer:

first option

Step-by-step explanation:

i think its self explanatory!!!

Answer:

The most number of layers he can afford is 2

Step-by-step explanation:

We automatically have a fee of 17 so we know we have 13 dollars remaining. Using this information, we know that one layer is 5 dollars which means we can get 2 layers which is equal to 10 dollars which turns our total fee to $27. Hope this helps!

Answer:

a. 50 weeks

Step-by-step explanation:

Answer:

[tex]3\frac{11}{24}[/tex]

Step-by-step explanation:

Given parameters:

Leftover pizza from the Science club = [tex]1\frac{1}{4}[/tex]

Left over pizza from french club  = [tex]2\frac{5}{24}[/tex]

Unknown;

Total left over pizzas between the two clubs = ?

Now to solve problem, simply add the leftover from the science club and the french club together;

      Total left over pizza  = [tex]1\frac{1}{4}[/tex]   + [tex]2\frac{5}{24}[/tex]  

                                         = [tex]\frac{5}{4} + \frac{53}{24}[/tex]  

                                         =  [tex]\frac{83}{24}[/tex]

                                         = [tex]3\frac{11}{24}[/tex]

The total left over pizza between the two clubs is [tex]3\frac{11}{24}[/tex]

Answer:

50

Step-by-step explanation:

1.25 - .05 = 1.20 made per balloon

60/1.2 = 50 balloons sold to recoup 60$ start up and break even

Answer:

y = 1

Step-by-step explanation:

3(7) - 2y = 19y

21 - 2y = 19y

21 = 21y

y = 1

Answer:

$6,567

Step-by-step explanation:

Multiply $43,780 by .15

Answer:

if the y is 0, does that mean it don't have a y-intercept? is the 0 the point of origin?