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2 years ago

Add then divide. Evaluate (7.3 X 10) + (2.4 X 107) (4 X 104)

Mathematics

1 answer:

Deffense [45]2 years ago

4 0

Answer:

6.0 x 10^2

Step-by-step explanation:

(7.3 X 10) + (2.4 X 10^7)

(4 X 10^4)

= 73 + 24000000

40000

= 24000073

40000

= 6.0 x 10^2

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How many milliliters of syrup are in a 100-ml sample containing 6.55 g of syrup per 20 mL if the syrup's specific gravity is 1.3

sashaice [31]

Answer:

25 milliliters

Step-by-step explanation:

Given:

volume of sample = 100 ml

Syrup present in sample = 6.55 g per 20 mL

Therefore in 100 mL, amount of syrup present = $\frac{\textup{6.55}}{\textup{20}}\times100$

amount of syrup present in 100 mL sample = 32.75 grams

Now,

Specific gravity of the syrup = 1.31

also,

Specific gravity of the syrup = $\frac{\textup{Density of syrup}}{\textup{Density of water}}$

1.31 = $\frac{\textup{Density of syrup}}{\textup{1 g/mL}}$

Density of syrup = 1.31 g/mL

also,

Density = $\frac{\textup{Mass}}{\textup{Volume}}$

therefore,

1.31 = $\frac{\textup{32.75}}{\textup{Volume of syrup in the sample}}$

Volume of syrup in the sample = $\frac{\textup{32.75}}{\textup{1.31}}$

Volume of syrup in the sample = 25 milliliters

8 0

3 years ago

Rosa works in an office building with many floors.From her office she goes down 5 floors for a meeting .Then she goes up 8 floor

n200080 [17]

Answer:

11th floor

Step-by-step explanation:

So to figure out what floor Rosa's office is in, we need to declare some variables.

x = Rosa's office

down 5 floors = -5

up 8 floors = 8

down 13 floors = - 13

One major clue to find Rosa's office is that she went down 13 floors to get to the 1st floor. So let's declare that Rosa is on the first floor.

x - 5 + 8 - 13 = 1

x - 10 = 1

x = 1 + 10

x = 11

So Rosa's office is at the 11th floor of the building.

8 0

3 years ago

How is -6.1 wrote in fraction form

Vesna [10]

-61/10 I hope this helps

7 0

2 years ago

Read 2 more answers

43 milk jugs are in a fridge with 11 that are spoiled. 5 jugs are randomly selected. what are the odds that the first two are go

malfutka [58]

Answer:

0.85% probability that the first two are good and the last three are spoiled

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the first two jugs is not important, as is not the order in which the last three are selected. So we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

Desired outcomes:

2 spoiled, from a set of 43-11 = 32.

3 spoiled, from a set of 11.

$D = C_{32,2}*C_{11,3} = \frac{32!}{2!(32-2)!}*\frac{11!}{3!(11-3)!} = 982080$

Total outcomes:

5 jugs from a set of 43.

$T = C_{43,5} = \frac{43!}{5!(43-5)!} = 115511760$

Probability:

$p = \frac{D}{T} = \frac{982080}{115511760} = 0.0085$

0.85% probability that the first two are good and the last three are spoiled

4 0

2 years ago

Write a situation that could be modeled by the equation b = 100 - S.

lara [203]

Answer:

Step-by-step explanation:

S for seats taken by girls, what is the formula for the number of boys on the bus

8 0

2 years ago