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zalisa [80]
3 years ago
5

How can you know if this equation is true?

Mathematics
1 answer:
faltersainse [42]3 years ago
4 0
Notice how 1/2 and 3/8 are positive numbers. We add two positive numbers meaning that the result should be larger. However 2/5 = 0.4 is not larger than 1/2 = 0.5

So something went wrong with the adding. It turns out that the error is when the person added the numbers in the denominators (2 and 8 to get 10). This is not allowed. The denominators must be the same and stay the same in order for the fractions to be added.

For example: 1/7 + 2/7 = (1+2)/7 = 3/7
The 7s in the denominator do not change

Therefore the answer is choice B) Not true because 2/5 < 1/2
You might be interested in
Jenna gave 5 grapes to each of her sisters she has 3 sisters what is the total number of grapes Jenna gave to her sisters ,a 3 b
Lera25 [3.4K]
The answer is D she's giving 5 grapes to each of her sisters so 5 times 3 = 15
7 0
3 years ago
How do I solve this? I will mark answer brainiest pls respond asap!
Illusion [34]

The line of the best fit is y = 4.71x—30.31 and at x = 9.5 inches the value of y is 14.5 oz.

<h3>What is the line of best fit?</h3>

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

First, we need to find the line of best fit:

Let's suppose the line of the best fit is:

y = mx + c

We can find the value of m:

\rm m = \dfrac{n\sum xy-\sum x \sum y}{n\sum x^2 - (\sum x)^2}   and

\rm c = \dfrac{\sum y -m \sum x}{n}

After calculating, we will get:

m = 4.71

d = -30.31

y = 4.71x—30.31

Plug x = 9.5

y = 14.43 ≈ 14.5 oz

Thus, the line of the best fit is y = 4.71x—30.31 and at x = 9.5 inches the value of y is 14.5 oz.

Learn more about the line of best fit here:

brainly.com/question/14279419

#SPJ1

6 0
2 years ago
Plz help! I’m super confused! Thank you!
GREYUIT [131]

Answer:

Step-by-step explanation:

7 0
3 years ago
What are the outputs for an input If x= 5 and the output is y= 3x -4
FromTheMoon [43]

Answer:

11

Step-by-step explanation:

y=3 × 5 -4

=15-4

11

this is your answer

5 0
3 years ago
Read 2 more answers
Shelley sells 5 bone-shaped treats for $3.50. How much should she charge for a package of 12 treats? Which proportion is needed
Anastasy [175]

the proportion you need to find is how many dollars per treat, so you do 3.50 divided by 5, and you get 0.7. then you do 0.7 times 12 and you’ll get $8.40 as your final answer.

hope this helped!!!

8 0
3 years ago
Read 2 more answers
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