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Dafna11 [192]
3 years ago
15

Plz help

Mathematics
1 answer:
Semenov [28]3 years ago
5 0
This is a classic example of Scientific Notation. 
5.3 x 10^5 actually equals 530,000
3.8 x 10^4 actually equals 38,000
Since it is asking for the sum of the numbers you are adding.
Your new equation look like this:
530,000 + 38,000 
= 568,000
now all you have to do is count the decimal points. You start from the end zero and count the spaces in between until you get to the tenths place. (Right behind the first number) There are 5
So your answer will be:
 B. 5.68 x 10^5.
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Ainat [17]
The answer is B. Hope this helps!(:
7 0
3 years ago
What is -1/3 minus 5/8
Tom [10]
- 1/3 -5/8
-8/24 - 15/24
-23/24

The first step is to find the least common denominator. The LCD of 3 and 8 is 24. Now, mulitply -1/3 by 8/8 and -5/8 by 3/3. This will give you fractions with equal denominators which you need to find before subtracting. Finally, you simplify the equation. Since this cannot be simplified, -23/24 is the answer
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3 years ago
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6-y-x^2 use x=5 and y=4
Ulleksa [173]

Answer:

6 - 4 - 5 ^ 2 = -23

hope this helps

5 0
3 years ago
Two mechanics worked on a car. The first mechanic charged $95  per hour, and the second mechanic charged $60  per hour. The mech
Yanka [14]

Answer:

<em>Mechanic A worked for 5 hours</em> and <em>Mechanic B worked for 15 hours</em>

I hope my answer and explanation helped!

<u>okay to get started you need to make a system of equations:</u>

x= number of hours worked by mechanic A

y= number of hours worked by mechanic B

x + y= 20

95x + 60y= 1375

<u>substitute in an equation:</u>

x + y= 20

y= 20- x

95x + 60(20-x)=1375

<u>Solve for x</u>

95x + 1200 - 60x=1375

35x =175

x= 5

<u>plug in x to solve for y</u>

x + y= 20

5 + y= 20

y=15

<u>Check work</u>

then you're done :D

3 0
3 years ago
What is the slope of the line that contains Points (-3,-5) and (2, 7)?
hoa [83]

Answer:

12/5

Step-by-step explanation:

4 0
3 years ago
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