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Scilla [17]
3 years ago
6

Estimates show that there are 1.4x10^8 pet fish and 9.4x10^6 pet reptiles in the United States. How many pet fish and reptile pe

ts are in the United States. Answer in scientific notation.
Mathematics
1 answer:
azamat3 years ago
8 0

Answer:

There are total number of pet fish and reptile pets are 1.49\times 10^8.

Step-by-step explanation:

Number of pet fish are 1.4\times 10^8 and the number of pet reptiles are 9.4\times 10^6.

It is required to find the total number of pet fish and reptile pets in the United States. It can be done by simply adding the above numbers such that total numbers are given by :

T=1.4\times10^{8}+9.4\times10^{6}\\\\T=149400000\\\\T=1.49\times 10^8

So, there are total number of pet fish and reptile pets are 1.49\times 10^8.

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There are 20 teachers and 705 students in cory's school. what is the ratio of teachers and students
Aleksandr [31]

We know that ratios can be shown with both fractions and colons.

20:705

or

\frac{20}{705}

It also looks like we can simplify this by dividing by 5.

20/5 = 4

705/5 = 141.

This means that for every 4 teachers, there are 141 students.

The ratio for teachers to students is:

4 : 141

6 0
2 years ago
Andre and scott share the driving on a trip. Scott drives 7 miles more than three times tge distance Andre drives. If the trip i
Alekssandra [29.7K]

Answer:

Step-by-step explanation:

What we know is that A + S = 111. That is, the miles Andre drove plus the miles Scott drove totalled 111 miles. What we also know is that Scott drove quite a bit more than Andre did. Scott drove 7 miles more that ( +7 ) 3 times the number of miles Andrea drove. That looks like this algebraically:

S = 3A + 7

Now we can sub in that value for S to the original equation:

If A + S = 111 and S = 3A + 7, then

A + 3A + 7 = 111 and

4A + 7 = 111 and

4A = 104 so

A = 26 and

S = 3(26) + 7 so

S = 85 miles.

Scott drove 85 miles.

3 0
3 years ago
Read 2 more answers
If 3 sisters receive $180 and split it so that the middle sister gets twice as much as the youngest sister and the oldest sister
timurjin [86]

Answer:

30$

Step-by-step explanation:

1st sister is 3x

2nd sister 2x

3th is x

3x+2x+x=180

6x=180

X=30

8 0
3 years ago
Solve and check: 1 x + 3 = x + 10 x − 2 From least to greatest, the solutions are x = and x = .
blondinia [14]

Answer:

x= 1/2

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

1x+3=x+10x−2

x+3=x+10x+−2

x+3=(x+10x)+(−2)(Combine Like Terms)

x+3=11x+−2

x+3=11x−2

Step 2: Subtract 11x from both sides.

x+3−11x=11x−2−11x

−10x+3=−2

Step 3: Subtract 3 from both sides.

−10x+3−3=−2−3

−10x=−5

Step 4: Divide both sides by -10.

−10x/−10=−5/−10x=1/2

8 0
3 years ago
Read 2 more answers
Can someone please help me !!
horsena [70]

Answer:

(3a + 2)(a + 3)

Step-by-step explanation:

6 0
2 years ago
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