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Leokris [45]
2 years ago
5

How can you add and subtract rational expression

Mathematics
2 answers:
Elis [28]2 years ago
8 0

Answer:

who knows what your saying

svp [43]2 years ago
7 0

Answer: add or subtract the numerators and right the result over the common denominator.

When denominators are the same manipulate them so they become the same.

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The table below lists the masses and volumes of several pieces of the same type of metal. There is a proportional relationship b
castortr0y [4]
 
<span>∵ There is a proportional relationship between the mass and the volume of the places of metal.
Let volume = v and mass = m
So, the relation between volume and mass will take the form:
        v = km
where k is constant and can be calculated as follow:
when m = </span><span>34.932 , and v = 4.1   ⇒⇒⇒ k = v/m = 0.117371
</span>when m = 47.712<span> , and v = 5.6   ⇒⇒⇒ k = v/m = </span>0.117371
when m = 61.344 , and v = 7.2   ⇒⇒⇒ k = v/m = <span>0.117371
when m = </span>99.684 , and v = 11.7  ⇒⇒⇒ k = v/m = <span>0.117371

∴ v = 0.117371 m
</span>
For  v =<span>15.3
∴ m = v/k = 15.3/0.117371 = 130.356 </span><span>gram

</span>The mass of a piece of this metal that has a volume of 15.3 cubic centimeters ≈ 130.4 gram (<span>round to the nearest tenth</span>)











3 0
3 years ago
Read 2 more answers
What formula should be entered in A3 to compute A1 times B1?
oksano4ka [1.4K]

The formula that should be entered in A3 is = A1 * B1

<h3>How to determine the formula?</h3>

The question implies that:

A3 = A1 times B1

In mathematics, the term "times" means *

So, we have:

A3 = A1 * B1

Remove the variable A3

= A1 * B1

Hence, the formula that should be entered in A3 is = A1 * B1

Read more about excel formulas at:

brainly.com/question/1285762

#SPJ1

8 0
1 year ago
I) 43x + 31y = 98<br> 31x + 43y = 50
Neko [114]

There are no solutions to the given system of equations.

Hope this helps.

4 0
3 years ago
Find the area of the pentagon pictured below.
podryga [215]

Answer:

84.3

Step-by-step explanation:

Google Google Google GoogleGoogle Google Google GoogleGoogle Google Google GoogleGoogle Google Google Google

8 0
3 years ago
I need help on questions two lol pls help me
aksik [14]
1. (8/9)/4

8/9 * 1/4 = 8/36= 2/9 paint for each birdhouse

2. ron 1 mile every 20 minutes so 3 mph

1 mile every 24 minutes so ron is the faster walker
5 0
2 years ago
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