Answer:
1.5f + 10 = 28.5
Step-by-step explanation:
Answer:
12 i think
Step-by-step explanation:
28.50-10.50=18
18 divided by 1.50= 12
HELP I HAVE TO FINISH IN 2 HOURS
shannon and sarah are mowing a field. shannon can finish mowing by herself in 2 hours. sarah can finish in 4 hours. how long will it take them to mow the field together?
Answer:
1h 20m
Step-by-step explanation:
Let the total amount of work be x.
Shannon:
2h = x
1h = [tex]\frac{1}{2}[/tex]x
So basically Shannon does [tex]\frac{1}{2}[/tex]x work per hour.
Sarah:
4h = x
1h = [tex]\frac{1}{4}[/tex]x
So basically Sarah does [tex]\frac{1}{4}[/tex]x work per hour.
Together:
1h = [tex]\frac{1}{2}[/tex]x + [tex]\frac{1}{4}[/tex]x
= [tex]\frac{2}{4}[/tex]x + [tex]\frac{1}{4}[/tex]x
= [tex]\frac{3}{4}[/tex]x
Amount of time spent = [tex]\frac{4}{4}[/tex]x ÷ [tex]\frac{3}{4}[/tex]x
= [tex]\frac{4}{4}[/tex]x × [tex]\frac{4}{3}[/tex]x
= [tex]\frac{16}{12}[/tex]h
= 1[tex]\frac{4}{12}[/tex]h
= 1h 20m
Answer:
4/3 hours
Step-by-step explanation:
For every hour that Sarah mows, Shannon mows twice as much. Because of this, Sarah is going to mow two times as much of the field as Shannon. You can set up an equation where x is the fraction of lawn mowed. This equation should be:
2x + x = 1 -> 3x = 1
The reason the equation is set up like this is because there is 1 whole lawn that the fraction of the lawn that Shannon mows (2x) plus the fraction of the lawn that Sarah mows (x) adds up to. You can use this equation to solve for x, which will be 1/3.
Since you know x, you can find what fraction of the lawn Shannon and Sarah mow. Since Shannon mows a fraction of 2x of the lawn, the fraction she mows will be 2*1/3 = 2/3. The fraction that Sarah mows will be x = 1/3.
Now that you know the fraction of the whole lawn that both Saran and Shannon mow, you can multiply their respective fraction by the amount of time it takes for them to mow a whole lawn. To do this for Shannon, you multiply 2/3 of the lawn by 2 hours, which gives you 4/3 hours. To do this for Sarah, you multiply 1/3 of the lawn by 4 hours, which also gives you 4/3 hours.
Yesterday, grace drove 33 1/2 miles. She used 1 1/4 gallons of gasoline. What is the unit rate for miles per gallon?
Answer:
30 4/5 or 30.8
Step-by-step explanation:
19) It will cost $12.50 per person to make dinner. Write an
inequality that represents the number of people you can make dinner
for if you only have $200 to spend
Answer:
12.50x less than or equal to $200
Step-by-step explanation:
URGENT!!! a media statistics agency reports that the mean number of televisions in a household in a particular country is 2.24 with a standard deviation of 1.38 what is the probability of a random sample of 40 households have a sample mean number of at least 2.55 televisions per household.
Answer:
0.48173
Step-by-step explanation:
Given that :
Mean (m) = 2.24
Standard deviation (s) = 1.38
Sample size (n) = 40
P(x ≥ 2.55)
Z = (x - m) / (s/sqrt(n))
Z = (2.55 - 2.24) / (1.38 / sqrt(40))
Z = 0.01 / 0.2181971
Z = 0.0458301
P(Z ≥ 0.0458) = 0.48173 ( Z probability calculator)
Simplify: (15-13i)-(-1+17i)
Answer:
c
Step-by-step explanation:
16-30i
Helpppp:)
A tank full of water is leaking at a constant rate for 25 minutes. The equation
y = -4x + 220
describes the amount of water in the tank, where yis the number of liters and
x is the number of minutes that has elapsed since the tank started to leak.
Which statement is true?
A. There were 4 liters in the tank when the leak started, and it is
increasing by 220 liters per minute.
B. There were 220 liters in the tank when the leak started, and it is
decreasing by 4 liters per minute,
C. There were 4 liters in the tank when the leak started, and it is
decreasing by 220 liters per minute.
D. There were 220 liters in the tank after 25 minutes, and it
decreasing by 4 liters per minute.
Answer:
Is it B
Step-by-step explanation:
Answer:
Step-by-step explanation:
B test!
Please help me out :(
Answer:
True
True
False
Step-by-step explanation:
Rate of Change is slope. There is no change in slope as the line is straight.
Using the slope formula:
[tex]m=\frac{x_{2}-x_{1} }{y_{2}-y_{1}} \\m=\frac{4-0}{1-0}\\m=4[/tex]
Where m is slope
Since gold beads are on the x-axis, that means there are 4 black beads per gold bead
22. Find the missing terms indicated by variables in the arithmetic sequence shown.
a, 30, b, 42, c, d, e
The complete sequence is 24, 30, 36, 42, 48, 54, 60
The nth term of an arithmetic progressionThe nth term of an arithmetic progression is expressed according to the equation;
Tn = a + (n-1)d
where
a is the first term
n is the number of terms
d is the common difference
Determine the common difference
d = 42-b = b - 30
-b-b = -30-42
-2b = -72
b = 36
d = 36-30
d = 6
For the first term;
d = 30 - a
6 = 30 - a
a = 24
For the value of c
c = 42 + 6
c = 48
For the value of d
d = 48 + 6
d = 54
For the value of e
e = 54 + 6
e = 60
Hence the complete sequence is 24, 30, 36, 42, 48, 54, 60
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4 x 4 x •••4 =
7 times
find the base
The base of the given expression will be 4.
Here, we are given that 4 is multiplied by itself 7 times, that is-
4 x 4 x 4 x 4 x 4 x 4 x 4
As anything raised to the power 1 is the number itself, the given expression can also be written as follows-
[tex]4^{1} * 4^{1} *4^{1} *4^{1} * 4^{1} *4^{1} *4^{1}[/tex]
Now, we know that when we need to find the product of 2 numbers whose bases are same, we can simply add the powers. Mathematically this can be represented as follows-
[tex]a^{n}a^{m} =a^{n+m}[/tex]
Thus, the given expression will become-
[tex]4^{1} * 4^{1} *4^{1} *4^{1} * 4^{1} *4^{1} *4^{1}[/tex] = [tex]4^{1+1+1+1+1+1+1}[/tex]
= [tex]4^{7}[/tex]
Thus, we see that when 4 is multiplied 7 times, the base comes out to be 4 only.
Learn more about exponents here-
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Match each representation with the correct x- and y-intercept.
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse
(-4, 0) (0, -12)
(6, 0) (0, 4)
(3, 0) (0, -9)
(-2, 0) (0, -4)
(10, 0) (0, 10)
Take intercepts from the graph:
(10, 0) and (0, 10)2. The function3x - y = 9Calculate the intercepts
x = 0 ⇒ -y = 9 ⇒ y = - 9y = 0 ⇒ 3x = 9 ⇒ x = 3Points are: (3, 0) and (0, - 9)
3. The tableOrdered pairs given:
(0, 4) and (6, 0)4. The graphTake intercepts from the graph:
(-4, 0) and (0, - 12)5. The function6x + 3y = - 12Calculate the intercepts:
x = 0 ⇒ 3y = - 12 ⇒ y = - 4y = 0 ⇒ 6x = - 12 ⇒ x = - 2Points are: (- 2, 0) and (0, - 4)
An 8-column table with 14 rows titled Table 1, Employment by major industry sector, 1996, 2006, and projected 2016. Column 1 is labeled Industry sector with entries services-providing, utilities, wholesale trade, retail trade, transportation and warehousing, information, financial activities, professional and business services, educational services, health care and social assistance, leisure and hospitality, other services, federal government, state and local government. Column 2 is thousands of jobs in 1996 with entries 97,042.9, 639.5, 5,522.1, 14,142.6, 3,935.5, 2,940, 6,968.6, 13,461.8, 2,077.5, 11,604.8, 10,776.5, 5,434.9, 2,877, 16,662.1. Column 3 is labeled thousands of jobs in 2006 with entries 114,407.3, 548.5, 5,897.7, 15,319.4, 4,465.8, 3,054.9, 8,363.2, 17,551.6, 2,918.4, 14,919.8, 13,143.4, 6,234.6, 2,728.3, 19,261.7. Column 4 is labeled thousands of jobs in 2016 with entries 130,189.7, 517.6, 6,326.2, 16,006.4, 4,962, 3,266.7, 9,570.1, 21,643.7, 3,527.4, 18,954.1, 15,016.7, 7,077.2, 2,625.7, 20,696.1. Column 5 is labeled Numeric change 1996 to 2006 with entries 17,354.4, negative 91, 375.6, 1,176.8, 530.3, 114.9, 1,394.6, 4,089.8, 840.9, 3,315, 2,366.9, 799.7, negative 148.7, 2,599.6. Column 6 is labeled numeric change 2006 to 2016 with entries 15,782.4, negative 30.9, 428.5, 687, 496.2, 211.8, 1,206.9, 4,092.1, 609, 4,034.3, 1,873.3, 842.6, negative 102.6, 1,434.4. Column 7 is labeled Average annual rate of change, 1996 to 2006 with entries 1.7, negative 1.5, .7, .8, 1.3, .4, 1.8, 2.7, 3.5, 2, 1.4, negative .5, 1.5. Column 8 is labeled average annual rate of change, 2006 to 2016 with entries 1.3, negative .6, .7, .4, 1.1, .7, 1.4, 2.1, 1.9, 2.4, 1.3, 1.3, negative .4, .7. Based on the above chart, which industry’s average annual rate of change is projected to decrease the most in the 2006-2016 period as compared to its average annual rate of change during 1996-2006? a. Utilities b. Educational services c. Federal government d. State and local government
Answer:
It's not A or D it has to be B or C.
Step-by-step explanation: i just took the quiz on edge and it wasn't A or D.
Answer:
Its B
Step-by-step explanation:
The bag contained only red marbles and white marbles. If the ratio of red marbles to white marbles was 5 to 4, what fraction of the marbles were white? *Complete the statement by providing the correct response in number form, using / as the fraction symbol.
The fraction of white marbles is
Answer:1 1/4
Step-by-step explanation: If it is 5/4 it makes one whole leaving an extra
14. Classify a triangle with the following side lengths: 16 cm, 12 cm, and 16 cm.
Answer:
Isosceles
Step-by-step explanation:
The triangle has two equal sides of 16 cm. Isosceles triangles are classified to have either two of the same sides or two of the same angles.
A delivery truck drove 42 miles per hour. It took 4 hours to travel between two towns. What is the distance between the two towns? Use the equation d=rt, where d is distance, r is rate, and t is time.
Answer:
168 miles
Step-by-step explanation:
d = rt
d = 42 × 4
d = 168
Answer:
d = rt
d = 42×4
d = 168
Step-by-step explanation:
That is the distance between the towns.
You have to multiply the amount of miles by the time it took.
PLEASE HELP!!
Which equation is equivalent to
-3(-x - 2) = 0?
A. 3x + 6 = 0
B. 3x - 5 = 0
C. -3x + 6 = 0
D. -3x - 5 = 0
Answer:
A. 3x+6= 0
Step-by-step explanation:
When you divide - 3 with -x, you will get a positive value and same goes for - 3 and - 2
So that is how you get the answer 3x+6= 0
Multiply 39.341 × 0.72 = (1 point)
PLease
Answer:
28.32552
Step-by-step explanation:
multiply
Answer:
28.32552
Step-by-step explanation:
39.331 × 0.72= 28.32552
1/2x7 giving your answer as a mixed number
Please help ASAP please
There is a committee composed of eight women and two men. When they meet, they sit in a row---the women in indistinguishable rocking chairs and the men on indistinguishable stools. How many distinct ways are there for me to arrange the eight chairs and two stools for a meeting?
Answer:
45
Step-by-step explanation:
10! / (8! * 2!)
A store pays $81 for a lawn ornament. The store marks up the price by 10%. What is the amount of the mark-up?
A colony of insects doubles every day. If the colony has 5 insects todayHow many will be present in 20 days?
a.1310720
b. 2621440
c. 5242880
d. 10485760
5242880 insects would be present in 20 days.
The correct answer is an option (c)
What is the formula of exponential growth?"[tex]f(x)=ab^x[/tex],
where a is the initial value
b is the growth rate
x is time. "
For given question,
Suppose the function for the population growth is,
[tex]A(t)=A_0\times b^t[/tex]
A colony of insects doubles every day.
⇒ b = 2
The colony has 5 insects today.
⇒ [tex]A_0=5[/tex]
So, the exponential growth function would be,
[tex]A(t)=5\times 2^t[/tex] ...........(1)
We need to find the number of insects after 20 days,
From equation (1),
[tex]\Rightarrow A(20)=5\times 2^{20}\\\\\Rightarrow A(20)=5\times 1048576\\\\\Rightarrow A(20)=5242880[/tex]
Therefore, 5242880 insects would be present in 20 days.
The correct answer is an option (c)
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What is the slope of a line on a standard xy-plane that passes through the point (1, 3) and (4,-3)?
A.) -1
B.) 2
C.) -2
D.) 1/2
E.) - 1/2
Therefore, the slope of a line on a standard XY-plane that passes through points (1, 3) and (4,-3) is -2.
So, option (c) is correct.
Given two points are (1, 3) and (4, -3)
We need to find the slope of a line
The slope of a line (m) :
m = y₂ - y₁ / x₂ - x₁
Given (x₁, y₁) = (1, 3) and (x₂, y₂) = (4, -3)
Slope (m) = y₂ - y₁ / x₂ - x₁
= -3 - 3 / 4 - 1
= -6 / 3
= -2
Therefore, the slope of a line on a standard XY-plane that passes through points (1, 3) and (4,-3) is -2.
So, option (c) is correct.
To learn more about slope refer below
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Please help due by 9:30
If you get it right +20 points
Answer:
ad=DC is your answer.....
Can someone help me please
Answer:
The first one!
Step-by-step explanation:
The sum of the side lengths of any 2 sides of a triangle must exceed the length of the third side.
Answer:
The answer is C.
Step-by-step explanation:
Hope this helped have an amazing day!
solve the formula Ax + By= C for x.
A. x= c/a+by
B. x= c-by/a
c. x= c-by/a
d. x= c+by/a
Answer:
ax + by = c
<=> ax = c - by
<=> x = [tex]\frac{c-by}{a}[/tex]
Step-by-step explanation:
d) A rectangular vessel can hold 40 litres of milk when it is full. If the area ofthe base of the vessel is 2000 cm, find the height of the vessel.
Answer:
height of the vessel should be 50 cm I guess
Anyone mind helping? This one might be kinda hard idk tho lol BUT PLEASE HELPPPP
Answer:
Ok
Step-by-step explanation:
Write an equation that can be used to calculate d,the distance traveled by Anthony in m minutes.use your equation to determine how far Anthony will have run after 7 minutes.
Answer:
C I think. Sorry if it's incorrect but I pretty sure it isn't.
(06.02)
Which of these is the algebraic expression for "five more than the product of ten and some number?" (3 points)
Select one:
a. 10 + 5x
b. 5 + 10 + x
c. 10x + 5
d. 5 + 10 ÷ x
Answer:
i think it is c
Step-by-step explanation:
Answer in an hour!!!! No linkssss
answer:
The correct answers are choices B, C, and D. Here is an explanation for each choice: B. All congruent figures are exactly the same size and shape. This is what makes one figure congruent to another. C. If the figures are the same size and shape, then the corresponding sides will also be congruent. D.If the figures are the same size and shape, then the corresponding angles will also be congruent.