Choose one of the formulas, i do not know which one to choose from.Explanation as well please.
At the end of week one, a stock had increased in value from $5.75 a share to $7.50 a share.Find the percent of increase at the end of week one to the nearest tenth of a percent.At the end of week two, the same stock had decreased in value from $7.50 to $5.75.Is the percent of decrease at the end of week two the same as the percent of increase at the end of week one?Justify your answer.
Answers
First, we will find the increase. I don't think it's any of the 3 formulas listed.
The formula I'll be using is Increase = Increased value - Original value
Let x be increase.
x = $7.50 - $5.75
x = $1.75
We then divide the increase by the original value.
Percent of increase = Increase/Original value
Let x be percent of increase.
x = $1.75/$5.75
x is approximately 0.30437
To turn a decimal into a percent, multiply it by 100.
0.30437 x 100 = 30.437
30.437 can be rounded to 30.4
The percent of increase at the end of week one is 30.4%
At the end of week two, the same stock had decreased in value from $7.50 to $5.75.We will first need to find the percent of decrease.
The formula will be Decrease = Original value - Decreased value
Let x be decrease
x = $7.50 - $5.75
x = $1.75
We then divide the decrease with the original value.
Percent of decrease = Decrease/Original Value
Let x be percent of decrease
x = $1.75/$5.75
x is approximately 0.30437
To turn a decimal into a percent, multiply it by 100.
0.30437 x 100 = 30.437
30.437 can be rounded to 30.4
The percent of decrease at the end of week one is 30.4%
Is the percent of decrease at the end of week two the same as the percent of increase at the end of week one? Justify your answer.No because the full percent of increase at the end of week one is 100% + 30.4% so that would be like a 130.4% increase while at the end of week two, it would be 130.4% - 30.4% and that would lead us back to 100%.
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Step-by-step explanation:
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Step-by-step explanation:
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FOIL
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Answer:
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Step-by-step explanation:
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Answer:
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You go shopping at a local department store with your friend and cousin. You buy one pair of jeans, four pairs of shorts, and two shirts for $84. Your friend buys two pairs of jeans, one pair of shorts, and three shirts for $76. Your cousin buys one pair of jeans, two pairs of shorts, and one shirt for $52. How much does each item cost?
Answers
Answer: Cost per pair of jeans = $ 20
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Step-by-step explanation:
Let x= cost per pair of jeans
y = Cost per pair of shorts
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For your friend, total cost = 2x+y+3z=76
For cousin, total cost = x+2y+z= 52
Required system:
[tex]x+4y+2z=84\ (i)\\ 2x+y+3z=76\ (ii)\\ x+2y+z=52\ (iii)[/tex]
from (i), [tex]x=84-4y-2z[/tex] (*)
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[tex]\mathrm{Subsititute\:}z=8\text{ in (vi)}[/tex]
[tex]y=-\frac{8-92}{7}\\\\\Rightarrow \ y=12[/tex]
[tex]\mathrm{Subsititute\:}z=8,\:y=12\text{ in (*)}[/tex]
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So, Cost per pair of jeans = $ 20
Cost per pair of shorts = $12
Cost per shirt = $8
The rental fee for space at a flea market is $200 per month base rate
plus an additional $10 for each square yard of floor space beyond the
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Answer:
anor soi sena orka uzumo senda?
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e is 5 more than d.
f is 7 less than d.
Work out
e-f
Simplify your answer.
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Answer:
12+2d
Step-by-step explanation:
e=5+d
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e-f = 5+d-(d-7)
e-f = 12+2d
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We have to given that,
e is 5 more than d.
And, f is 7 less than d.
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Combine like terms,
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Answer:
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Step-by-step explanation:
Amy regularly works 20 hours per week at Smiths Dry
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Hope you got a good grade!!! :)
will make brainiest Each bag of candy has 20 Twix bars, 15 Hershey's bars, 25 Reese candy, and 12 bags of M&M's. There are 15 of these big bags of candy. 1) What is the total amount of candy 2) Now divide the candy between 15 students. How many pieces of candy does each student get?
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1. The total amount of candy is 1,080 pieces of candy.
2. Each student would get 72 pieces of candy.
Answer:
each student will get 5 pieces of candy
Step-by-step explanation:
20+15+25+12 =72
72 divided by 15 = 5
Communities A,B and C are faced with acute water problem. The distance between communities A and B is 5km and that of A and C 7km. The angle between path AB and AC is 45degrees. If a well is dug for the three communities such that it would have equal distance to the path linking each communities. (a) Indicate by a way of sketching the exact place to dig the well? (b) Measure the distance between communities B and C?
Answers
Answer:
a) by finding the incentre
b) 5 km
Step-by-step explanation:
Let the communities A, B and C be shown by the three points of the triangle as shown in the figure below. As the angle between the path Ab and Ac is 45 degrees this is an isosceles triangle having two angles equal. As this is an isosceles triangle it must also have two sides equal .
a) the in center point can be used to have equal distance to the path linking each communities.
We take a compass and draw arcs on the two sides of the vertex and placing the compass on the arcs bisect each angle made by the triangles arms.
Joining the bisectors the lines meet at a point which is highlighted by a circle in the diagram.
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c² = a² + b²
7²= 5² + b²
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The path between B and C is also 5 km.
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Answer:
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Step-by-step explanation:
Answer:
15 degrees
Step-by-step explanation:
Brett, who is 5 ft tall, is standing next to a flag pole. Brett's shadow is 8 feet long. The flag
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Answers
Answer:
15 is the answer
Answer:
15
Step-by-step explanation:
Multiply the length of the flagpole's shadow by your height, and then divide the resulting number by the length of your shadow.
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please mark as brainliest!!!
Solve to find the value for x in the linear equation: 36-4x + 5) = 12
CIE
1 Use the distributive property:
2 Use the subtraction property of equality
3. Division property of equality:
3(-4x) + 3(5) = 12
-12x + 15 = 12
- 12x + 15 - 15 = 12 - 15
-12x = -3
Intro
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Answer:
[tex]\frac{1}{4}[/tex]
Step-by-step explanation:
Given expression:
3(-4x + 5) = 12
To solve for x;
Use the distributive property to open the parentheses;
3(-4x) + 3(5) = 12
-12x + 15 = 12
then, add -15 to both sides;
-12x + 15 + (-15) = 12 + (-15)
-12x = -3
divide both sides by -12;
[tex]\frac{-12x}{-12}[/tex] = [tex]\frac{-3}{-12}[/tex]
x = [tex]\frac{1}{4}[/tex]