W= width
To find dimensions 3x-5 + x + x + 3x-5 = 150
Perimeter = 2l + 2w so that’s why we repeated
So now we simplify
8x - 10 = 150
Add 10 to both sides
160 = 8x
Divide 8 from both sides
X=20
So width is 20 inches. and to find length it is:
3(20)-5 = 60 -5
=55
Length = 55 inches
Can I get brainliest answer.
4.6 moles in 187 grams of magnesium oxide (mgo).
<h3>What is mole explain with example?</h3>
- One mole is defined as the amount of substance containing as many elementary entities (atoms, molecules, ions, electrons, radicals, etc.) as there are atoms in 12 grams of carbon - 12(6. 023×1023).
- The mass of one mole of a substance equals to its relative molecular mass expressed in grams.
- The relative formula mass of a compound is calculated by adding together the relative atomic mass values for all the atoms in its formula.
- Moles are units used to measure substance amount. Chemistry (Single Science) Atomic structure.
To solve ,
number of moles is equals to the mass in grams divided by RFM
RFM=16+24.3=40.3
=187/40.3
=4.6 moles of MgO
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Answer:
P(1+r) = p(1+0.11)= p+0.11p=1.11p
Step-by-step explanation:
The merchandise is marked up 11%. This means you pay 100% of the price plus 11%. We can represent that as (1+r) where r is the percent marked above. For 11%, this expression would be 1+0.11. We multiply that by the price p. p(1+0.11). This simplifies to p+0.11p. We can further simplify it to 1.11p.
Answer: 0.785 (if you have to, round)
Step-by-step explanation:
1/2=0.5
0.5*0.5=0.25
0.25*3.14=0.785
Answer:
Step-by-step explanation:
add a picture of the question please