Part 1. How did you compute sums of dollar amounts that were not whole numbers? For example, how did you compute the sum of $5.89 and $1.45? Use this example to explain your strategy.
Part 2. How did you compute products of dollar amounts that were not whole numbers? For example, how did you compute the cost of 4 pounds of beef at $5.89 per pound? Use this example to explain your strategy.
Answer:
The answer is below
Step-by-step explanation:
1) When you are computing the sums of numbers, you do not round up. You have to be exact.
Summing numbers involves you adding the numbers together as well as their decimals. Therefore:
$5.89 + $1.45 = $7.34
2) When you are computing the product of numbers, you do not round up. You have to be exact.
The product of numbers involves you multiplying the numbers together. Therefore:
$5.89 per pound * 4 pounds of beef = $23.56
An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 160 engines and the mean pressure was 5.3 pounds/square inch (psi). Assume the population standard deviation is 0.6. The engineer designed the valve such that it would produce a mean pressure of 5.4 psi. It is believed that the valve does not perform to the specifications. A level of significance of 0.1 will be used. Find the value of the test statistic. Round your answer to two decimal places.
Answer:
Test statistic Z = 2.1097
Step-by-step explanation:
Step(i):-
Given that size of the sample 'n' = 160
Given that mean of the Population(μ) = 5.3pounds/square inch
The Standard deviation of the population(σ) = 0.6
Mean of the sample(x⁻) = 5.4
Level of significance =0.1
Step(ii):-
Test statistic
[tex]Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }[/tex]
[tex]Z = \frac{5.4-5.3}{\frac{0.6}{\sqrt{160} } }[/tex]
Z = 2.1097
Final answer:-
Test statistic Z = 2.1097
Which situation can be represented by 10x + 45 = 25x?
A.Ten times the sum of a number and 45 cents is the same as 25 times the number. What is the number, x?
B.A coin collection contains the same number of quarters as dimes. The value of the quarters increased by 45 cents is the same as the value of the dimes. How many quarters or dimes, x, are in the collection?
C.Twenty-five times a number is the same as 45 times the number increased by 10. What is the number?
D.The value of x dimes increased by 45 cents is the same as the value of x quarters. What is the value of x?
Answer:
its A.
Step-by-step explanation:
Answer: A. .Ten times the sum of a number and 45 cents is the same as 25 times the number. What is the number, x?
Step-by-step explanation:
10x + 45 = 25x can be written = its 10 times (x) + 45 is the sum of 25 times (x) the number
Hope this helps :)
Let LaTeX: x = \text{-}\frac {11} 8x = - 11 8 and LaTeX: y = \text{-}\frac {11} 4y = - 11 4.
Which expression has a negative value?
Group of answer choices
LaTeX: x + yx + y
LaTeX: x - yx − y
LaTeX: x \cdot yx ⋅ y
LaTeX: \frac x y
Answer:
This makes no sense
Step-by-step explanation:
Eighteen percent of apples grown in an orchard have defects. Let X = the number of apples that are randomly inspected from the orchard until a defective one is found.
What is the probability that the first defective apple found is the 10th one inspected? Round to 2 decimal places.
a). 0
b). 0.03
c). 0.14
d). 0.86
*it’s not c). 0.14*
Answer: It’s B. I guessed and it’s right.
Step-by-step explanation:
Answer:
0.03 edge2021
Step-by-step explanation:
f(x) = 16x^3- 20х^2 - 4х + 15
Answer:
hopes this helps
Step-by-step explanation:
2. Angela deposited $600 into an account paying a simple interest rate of 3.6% for 4.5 years. How
much interest did she earn? What was the balance of her account after the 4.5 years (assuming she made no deposits of withdrawals during the time)
Answer:
Step-by-step explanation:
to find out how much Angela she would have in the bank,
(600*3.6*1)100=21.60 she gains in one year
6 months 21.60/2=10.80
in 4.5 years
(21.60*4)+10.80=86.40+10.80=97.20 interest
the balance=600+97.20=697.20
9x^2+25 Can someone doble this
Answer:
Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b) where a=3x and b=5.
(3x+5)(3x−5)
Step-by-step explanation:
Need help on question hurry
Answer: C
Step-by-step explanation: it is c trust me
A small orchestra has 3 stringed instruments. What is the ratio of violins to cellos?
A. 5/15
B. 6/11
C. 5/6
D. 6/5
Violin to Celio.
Violin : Celio
Violin = 6
Celio = 5
6:5
D. 6/5
When the expression
10x^2/2x^6
is simpified what is the value left in the denominator?
11
12
What is that fraction decimal
Answer:
0.91666666666...
Simplify
3/4a - 2/3 - 1/2a + 5/6= ????
Answer:
3a + 2
——————
12
Step-by-step explanation:
108x25^2divided by
2^6 x 5^2
Answer:
108 x 25² divided by 2⁶ x 5² is equal to [tex]42\frac{3}{16}[/tex]
Step-by-step explanation:
Given;
108 x 25² divided by 2⁶ x 5²
The expression is simplified as follows;
[tex]\frac{108\times 25^2}{2^6 \times 5^2} = \frac{108\times 625}{64\times25} =\frac{675}{16} = 42\frac{3}{16}[/tex]
Therefore, 108 x 25² divided by 2⁶ x 5² is equal to [tex]42\frac{3}{16}[/tex]
Mrs. Bush has a carpet remnant left from putting carpet down in her living room.
The carpet remnant was 4 1/8 square units. If the remnant was 3/4 units wide,
what was the length? *
Answer: The length = [tex]5\dfrac12[/tex] units
Step-by-step explanation:
Given: Area of carpet = [tex]4\dfarc18 \text{ sq. units}=\dfrac{33}{8}\text{ sq. units}[/tex]
Width of carpet = [tex]\dfrac34[/tex] units
Shape of carpet = Rectangle
Area of rectangle = length x width
So,
length = [tex]\dfrac{Area}{width}[/tex]
[tex]=\dfrac{\dfrac{33}{8}}{\dfrac34}\\\\=\dfrac{33}{8}\times\dfrac43\\\\=\dfrac{11}{2}\\\\=5\dfrac12\text{ units}[/tex]
Hence, the length = [tex]5\dfrac12[/tex] units
HELP QUICK ILL GIVE YOU BRAINLIEST
What is the surface area?
Answer:
25 ft if i am right than u plss mark me as brainliest
Imagine that you have the opportunity to purchase a large piece of land for $100,000, after taking out a loan. You have decided to take out a loan for $135,000 in order to cover the cost of the land purchase and building your park. You have hired a financial adviser to help you explore different loan options and decide which one is best for you. Below you will see the different loan options. You will need to calculate the total cost of each loan with interest. Once you have do this you and your group members will need to decide which of the loan options is best for you and why.
Option #1 – charges 5% simple interest per year; this is a short-term loan for only 5-years.
Option #2 – charges 7% simple interest per year; this is a short-term loan for only 3-years.
Option #3 – charges 3.2% simple interest per year; there is no time limit on this loan (as a group determine how long you think it will take you to make enough money to be able to pay back the loan with interest)
Option #4 - charges 10% simple interest per year; only lasts 10 months
Option #5 - charges 12% simple interest per year; only lasts 6 months
Written Response
You will be meeting with your financial adviser in two days. Write out which loan option your group is choosing to use and why. You really want to impress her with how much thought you have put into this decision so be as detailed as possible.
what is this
Step-by-step explanation:
Option #1 – charges 5% simple interest per year; this is a short-term loan for only 5-years.
Option #2 – charges 7% simple interest per year; this is a short-term loan for only 3-years.
Option #3 – charges 3.2% simple interest per year; there is no time limit on this loan (as a group determine how long you think it will take you to make enough money to be able to pay back the loan with interest)
Option #4 - charges 10% simple interest per year; only lasts 10 months
Option what is this
Answer:
Its option one
Step-by-step explanation:
Because 135,000/5=27000 then x5=135,000
Find the Area and Perimeter
Answer: a) Perimeter: 7n-7; Area: 12n^2-23n+10; b) Perimeter: 8n-2 ; Area: 12n^2-16n-3
Step-by-step explanation:
Area Formula:l*w Perimeter formula: l+w
What is the measure of 2X?
х
1240
Select the best answer from the choices provided.
A.56
B.66
C.114
D.124
Answer:
D
Step-by-step explanation:
1240/10
The points (2, -12) and (4, r) lie on a line with slope 4. Find the missing coordinate r.
Please need help on this please
someone help , i’ll give you brainliest !
Answer:
It is y^5 + 15y^4 + 90y^3 + 270y^2 + 405y + 243
Step-by-step explanation:
Martin has read 40% of a book. He has 30 more pages to finish. How many pages are there in the book?
Answer:
75
Step-by-step explanation:
Answer:
There are 50 pages in the book.
Step-by-step explanation:
Given that:
Martin has read 40% of the book.
Remaining percent = (100 - 40)% = 60%
Number of pages left to finish = 30
Let,
x be the total number of pages in the book.
60% of x = 30
[tex]\frac{60}{100}x=30[/tex]
0.6x = 30
Dividing both sides by 0.6
[tex]\frac{0.6x}{0.6}=\frac{30}{0.6}\\x= 50[/tex]
Hence,
There are 50 pages in the book.
2
In the diagram, AB Is parallel to DE Also, DE is drawn such that the length of DE is half the length of AB If sin A = 0,5, then what is sin E?
Answer:
than we know that DE parallel AB => m<A = m<E so in this way sin A = sin E
knowed that sin A = 0,5 so sin E = 0,5 too
hope helped
Step-by-step explanation:
Records kept for a period of 30 weeks by a
dietician at a cafeteria show the following
weekly consumption of milk ( in gallons).
200
205
210
215
220
225
230
235
240
Milkin
gallons
Probability
3/30
4/30
6/30
5/30
4/30
3/30
2/30
2/30
1/30
Find the average number of gallons of milk
consumed per week.
Answer:
216
Step-by-step explanation:
LCD = 30
200(3/30) = 600/30
^ do this process for each number
Answer: 216
Step-by-step explanation:
Which expression represents the phrase: 8 less than the product of 6 and a number, x?
Answer:
6x-8
Step-by-step explanation:
Answer:
6x - 8
Step-by-step explanation:
6) A sample of water is being cooled according to the formula is given by
C(t)= 80 – 2t, where t represents the number of minutes the water is cooled,
and C measures the corresponding temperature in degrees Centigrade. The
cooling period ends when the water freezes (0°). Determine the relevant
domain and range for this function.
Determine the relevant Domain and relevant Range for this function. Use
interval notation.
Answer:
Relevant domain: [0 40]
Relevant range: [0 80]
Step-by-step explanation:
We have the following function:
[tex]C(t) = 80 - 2t[/tex]
In which C(t) is the water temperature.
t is the time.
The colling period ends when the water freezes (0°).
So it freezes after t minutes, and t is found when C(t) = 0. So
[tex]C(t) = 80 - 2t[/tex]
[tex]80 - 2t = 0[/tex]
[tex]2t = 80[/tex]
[tex]t = \frac{80}{2}[/tex]
[tex]t = 40[/tex]
Relevant domain:
Input value of the function, which is in minutes. So between 0(initial) and 40(when the water freezes).
Relevant range:
Initial temperature, which is C(0) = 80, until it freezes, 0. So from 0 to 80.
HELP PLZ WILL GIVE BRAINLIEST
The answer is True
hope this helps
Answer:
Step-by-step explanation:
False
the ratio of marks age to reeta's age is 3:5 marks age is 24 work out reeta's age
Answer:
40
Step-by-step explanation:
Set up a ratio. Solve for x.
3/5 = 24/x
3x = 120
x = 40
Reeta is 40 years old.
Answer:
40
Step-by-step explanation:
For every three years mark has, reeta has five.
Find out how many 'three years' mark has: 24/3 = 8
For every 'three years' he has, reeta has five. 5*8=40
Can someone help, marking Brainly ! Thank you if you do help .
Answer:
in order
y=0
y=1
y=2
y=3
y=4
y=5