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Alchen [17]
3 years ago
14

Lorenzo's Survey Results

Mathematics
1 answer:
neonofarm [45]3 years ago
6 0

Answer:

30%

Step-by-step explanation:

First, add all of the numbers together and you get 40. After, you divide 12 by 40 and you get 0.3. Next, you have to multiply that by 100 and you get 30%.

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For the equation x/3=15 a student found the value of x to be 5.explain the error
egoroff_w [7]
Let plug the variable into the equation.

x = 5
5/3=15

We can conclude that this is incorrect because 5/3 does NOT equal 15

The correct answer would be: 15/3 = 5; 15/5=3; or
 3(5) = 15 or 45/3=15

All 4 of these are correct answers. 
5 0
3 years ago
Read 2 more answers
Obtain an estimate for the following computation by rounding the numbers so that the resulting arithmetic can easily be performe
uranmaximum [27]

Answer:

Step-by-step explanation:

2915 can stay as it is; 15.458 should be rounded down to 15.  Then we have

2915-15, or 2900 (which is a very reasonable estimate).

3 0
3 years ago
MARKIN BRAINIEST ANSWER!!!!<br>(btw slide 3 is the answers you might need to solve this)
TiliK225 [7]

Answer:

Step-by-step explanation:

I assume you need help with the first picture:

Let x=\frac{a}{b} \\y=\frac{c}{d}

Then

x+y=\frac{a}{b} +\frac{c}{d} =\frac{ad}{bd} +\frac{bc}{bd} =\frac{ad+bc}{bd} , b,d\neq 0

Clearly you can see that the sum of 2 rational numbers gives a rational number.

7 0
3 years ago
On a chilly afternoon in New Jersey, the temperature was 4 degrees Fahrenheit. By nightfall, the temperature dropped 9 degrees F
Zarrin [17]

Answer:

negative 5

Step-by-step explanation:

4-9= -5

7 0
3 years ago
A rectangular prism is 4 meters long, 5 meters wide and has a hight of 7 meters what is it's volume?
Salsk061 [2.6K]

Answer:

A. 140

Step-by-step explanation:

width times height times length

5·7·4=140

3 0
3 years ago
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