Answer:
ok so he makes 7.25 per hour and he waste 2.29 he is wasting the 31.5% of the salari
Step-by-step explanation:
you have to multiply 2.29 by 100 and divide it into the 7.25
2.29 X 100=229/7.25=31.5
a car travels 72 kilometers in an hour. find its speed in meters per second
Answer:
v = 20 m /s
Step-by-step explanation:
v = 72 km / h
72 / 3.6
20
v = 20 m /s
This is pretty easy and I'll give brainliest Index fossils are useful to geologists if the fossils ____. Multiple choice question. A) have lived over a short period of time cross out B) are not easily recognized C) are not widely distributed geographically D) are scarce
Answer: B)
Step-by-step explanation:
THEY TELL THE RELATIVE AGE OF THE ROCK IN WHICH THEY OCCUR.
simplify the expression
5-2(9)|+9^2÷3
Answer:
14
Step-by-step explanation:
Simplify the following:
5 - 2×9 + 9^2/3
Hint: | Evaluate 9^2.
9^2 = 81:
5 - 2×9 + 81/3
Hint: | Reduce 81/3 to lowest terms. Start by finding the GCD of 81 and 3.
The gcd of 81 and 3 is 3, so 81/3 = (3×27)/(3×1) = 3/3×27 = 27:
5 - 2×9 + 27
Hint: | Multiply -2 and 9 together.
-2×9 = -18:
5 + -18 + 27
Hint: | Evaluate 5 + 27 using long addition.
| 1 |
| 2 | 7
+ | | 5
| 3 | 2:
32 - 18
Hint: | Subtract 18 from 32.
| 2 | 12
| 3 | 2
- | 1 | 8
| 1 | 4:
Answer: 14
Tegan needs to make 686868 more snow blocks to finish building an igloo. Write an equation for the number of blocks Tegan still needs to make, mmm, when she has completed ccc blocks. Tegan completes 333333 blocks. How many blocks does Tegan still need to make to finish the igloo?
Answer:
m = 68 - c ; 35
Step-by-step explanation:
Given the following :
Number of blocks Tegan needs to make = 68
Number of blocks completed = c
Number of blocks left to make = m
Therefore, the number of blocks 'm' left to make is given by the equation :
(Total number of blocks needed - number of blocks completed) = number of blocks left to make
(68 - c) = m
Equation : m = 68 - c
If completed blocks 'c' = 33 ; number of blocks needed to complete the igloo :
From m = 68 - c
m = 68 - 33
m = 35
Answer:
Equation: m = 68 - c Answer: 35
Step-by-step explanation:
Tegan needs 68 more blocks for her igloo. The number of blocks she still needs to make depends on c, the number of blocks she completes.
To find the number of blocks she still needs to make, m, we can use the equation m = 68 - c
To find the number of blocks Tegan still needs to make if she completes 33 blocks we can substitute 33 into the equation for c.
m = 68 - c
m = 68 - 33
m = 35
The equation is m = 68 - c
Tegan still needs to make 35 blocks to finish the igloo.
A man drives from home at 10.45 to the airport which is 325 km away.He travels at an average speed of 50km/h. a) Find his arrival time at the airport. b)After sending of his friend,the man drives back at 18 35 and arrives home at 23 10. Write down the time taken for the return journey.
We have,
Departing time = 10 : 45 hoursDistance between home and airport = 325 kmAverage speed = 50 km/hFinding time taken by the man,
⇛ Average speed = Total Distance/Total time
⇛ Total time = Total Distance/Average speed[tex].[/tex]
⇛ Total time = 325 km/50 km/h
⇛ Total time = 6.5 h (6 hrs 30 mins)
(a) Total Time duration,
⇛ Total Time = Reaching Time - Departing time
⇛ 6.5 h = Reaching Time - 10 : 45 hours
⇛ Reaching Time = 17 : 15 hours ( 5 : 15 pm)
(b) Finding time taken in return,
Departing time = 18 : 35 hoursReaching time = 23 : 10 hoursTotal time duration,
⇛ Total Time = Reaching Time - Departing time
⇛ Total Time = 23 : 10 hours - 18 : 35 hours
⇛ Total Time = 22 : 70 hours - 18 : 35 hours
⇛ Total time = 4 : 35 hours
☕ Hence, solved !!
━━━━━━━━━━━━━━━━━━━━
The radius of a circle is 3.9 cm. What is the area of the circle? Use pi = 3.14
Answer:
A ≈ 47.759 cm²
Step-by-step explanation:
A = πr²
A = (3.14)(3.9)²
A = (3.14)(15.21)
A ≈ 47.759 cm²
A card is drawn at random from a well-shuffled deck of playing cards. Find the probability that the card is drawn is either queen or red
Answer:
15/26
Step-by-step explanation:
There are 52 cards in a deck. A deck of cards contains 4 queen cards and 26 red cards. 30/52 simplified is 15/26.
Answer:
28/52, simplified is 14/26. The latter is the answer the questionnaire is probably looking for but if a human is marking it it doesn't hurt to write both.
Step-by-step explanation:
There are 26 cards that are red in a deck, plus 4 queens, minus the 2 queens that are already red.
Please help :)
The answer to the problem is
provided.
Explain why the answer is correct.
Easha has 3 less than 5 times the number of quarters (1)
that Isabelle has. Which expression shows the number of quarters Easha has?
a. 31 – 5
b. 51 - 3
c. 5 - 31
d. 3 – 51
The correct answer is B.
Explain WHY this the correct
answer, make sure to show your work PLEASE :)
Answer: b. 51 - 3
Step-by-step explanation:
Given, Easha has 3 less than 5 times the number of quarters (I) that Isabelle has.
Here I is the number of quarters that Isabelle has.
Then, as per given,
Number of quarters Easha has = 5 ( number of quarters that Isabelle has) -3
= 5I-3
Hence, the expression shows the number of quarters Easha has is "5I-3"
So the correct option is b.
The results of an experiment that Lacey is doing are recorded in the table below.
Day Number of Amoeba
1 2*1
2 2*2
3 2*3
How many amoebas will be present on the fourth day?
4
6
2
16
Answer:
16
Step-by-step explanation:
As per table we can conclude the function:
y = 2ˣSo for x = 4 we get:
y = 2⁴ = 16Correct answer choice is the last one
Answer:
16
Step-by-step explanation:
was correct.
what is this word π?
Answer:
π (Pi) is a mathematical constant.
Step-by-step explanation:
The digit π is a mathematical constant. It is interpreted as the ratio of a circle's perimeter to its diameter, and it also has various equivalent definitions. It appears in many formulas in all areas of mathematics and physics. It is roughly identical to 3.14159.
Help!!!!!!!!!!!!!!!!!
Answer:
x= -2
Step-by-step explanation:
3(2x-4)= -24
expand
6x-12= -24
6x= -24+12
6x= -12
x= -12/6
x= -2
Answer:
x=-2
Step-by-step explanation:
To solve the equation, we must get x isolated on one side of the equation.
[tex]3(2x-4) = -24[/tex]
3 is being multiplied by 2x -4. The inverse of multiplication is division. Divide both sides of the equation by 3.
[tex]\frac{3(2x-4)}{3} = -\frac{24}{3}[/tex]
[tex](2x-4)= -\frac{24}{3}[/tex]
[tex](2x-4)= -8[/tex]
4 is being subtracted from 2x. The inverse of subtraction is addition. Add 4 to both sides of the equation.
[tex]2x-4 +4 = -8+4[/tex]
[tex]2x= -8+4[/tex]
[tex]2x= -4[/tex]
x is being multiplied by 2. The inverse of multiplication is division. Divide both sides by 2.
[tex]\frac{2x}{2} =\frac{-4}{2}[/tex]
[tex]x=\frac{-4}{2}[/tex]
[tex]x= -2[/tex]
Let's check our solution. Plug -2 in for x and solve.
[tex]3(2x-4)= -24[/tex]
[tex]3(2(-2)-4)= -24[/tex]
[tex]3(-4-4) = -24[/tex]
[tex]3(-8)= -24[/tex]
[tex]-24=-24[/tex]
The statement above is true, so we know our solution is correct.
The answer to the equation is x= -2.
The fox population in a certain region has a continuous growth rate of 5% per year. It is estimated that the population in the year 2000 was 10,100 foxes.
a) Find a function that models the population,P(t) , after (t) years since year 2000 (i.e. t= 0 for the year 2000).
b) Use your function from part (a) to estimate the fox population in the year 2008.
c) Use your function to estimate the year when the fox population will reach over 18,400 foxes. Round t to the nearest whole year, then state the year.
Answer:
P(t) = A * (1 + r)^t ;
14,922 ;
Year 2013
Step-by-step explanation:
Given the following :
Continuous growth rate(r) = 5% = 0.05
Population in year 2000 = Initial population (A) = 10,100
Time(t) = period (years since year 2000)
A)
Find a function that models the population,P(t) , after (t) years since year 2000 (i.e. t= 0 for the year 2000).
P(t) = A * (1 + r)^t
Trying out our function for t = year 2000, t =0
P(0) = 10,100 * (1 + 0.05)^0
P(0) = 10,100 * 1.05^0 = 10,100
B.)
Use your function from part (a) to estimate the fox population in the year 2008.
Year 2008, t = 8
P(8) = 10,100 * (1 + 0.05)^8
P(8) = 10,100 * 1. 05^8
P(8) = 10,100 * 1.4774554437890625
= 14922.29
= 14,922
c) Use your function to estimate the year when the fox population will reach over 18,400 foxes. Round t to the nearest whole year, then state the year.
P(t) = A * (1 + r)^t
18400 = 10,100 * (1.05)^t
18400/10100 = 1.05^t
1.8217821 = 1.05^t
1.05^t = 1.8217821
In(1.05^t) = ln(1.8217821)
0.0487901 * t = 0.5998151
t = 0.5998151 / 0.0487901
t = 12.293787
Therefore eit will take 13 years
2000 + 13 = 2013
Find the slope of the line.
Answer:
Brainleist!
Step-by-step explanation:
first obvious thing is the line is positive
it goes up 3 over 2
so its 3/2
positive = 3/2
I do not understand.
i need help on this..
I hope this helps you
for cosine in a right triangle
cos Angle =adiacent/hypotenuse
cosQ=4/5
Write the equation of the line that is parallel to the given line and passes through the given point y=-4/5x-1(0,-3)
why must there be at least 2 lines on any given plane?
Answer:
there must be at least two lines on any plane because a plane is defined by 3 non-collinear points.
Step-by-step explanation:
A piece wide function f(x) is defined as shown f(x) = { -5/4x + 90, 0 < x < 40 { -3/8x + 75, 40 < x < 200 which table could be used to graph a piece of the function?
HELP
Answer:
The last table with x and y values:
x y
40 60
160 15
200 0
is the correct table
Step-by-step explanation:
Notice that the x-value 40 appears in all four tables, so let's use it according to the piece-wise function definition to decide which table can be the true one.
Notice that from the function's description, when x = 40 the function that should be used is (its domain includes 40 according to: [tex]40\leq x\leq 200[/tex] ) : [tex]f(x)=-\frac{3}{8} x+75[/tex],
which therefore gives : [tex]f(40)=-\frac{3}{8} (40)+75= -15+75=60[/tex]
therefore, we know that the only table that shows a y-value of 60 associated with x=40 is the last table. We should check that the other two pairs are also correct before deciding for it:
Is f(160) = 15 , and is f(200) = 0 according to the function's definition?
Let;s calculate f(160) (for which we need to use again the second function given which is valid for x values such that: [tex]40\leq x\leq 200[/tex]
[tex]f(160)=-\frac{3}{8} (160)+75= -60+75=15[/tex]
so, this pair is also correct.
Now the last check (for x = 200):
[tex]f(200)=-\frac{3}{8} (200)+75= -75+75=0[/tex]
which also checks with the values in the given table.
Which expression is equivalent to a to the power of m divided by a to the n power
Answer:
[tex]a^{m-n}[/tex]
Step-by-step explanation:
If we have the expression [tex]m^a \div m^n[/tex], we can use exponent rules to simplify this.
Exponent rules say that [tex]x^a \div x^b = x^{a-b}[/tex]. In this case, x is a, a is m and b is n, so the same rule applied here.
So [tex]a^m \div a^n[/tex] will be equal to [tex]a^{m-n}[/tex].
Hope this helped!
Plz help ASAP Will mark brainliest
Answer: 1/5
Step-by-step explanation: 2/5 - 1/5 = 1/5. So 1/5 more visitors saw the panda this month.
Question 5(Multiple Choice Worth 4 points)
(02.01)A class has 9 boys and 15 girls. What is the ratio in simplest form that compares number of boys to total number of
students?
Answer:
boys: total
3 8
Step-by-step explanation:
boys:girls: total
9 : 15 : 9+15
9 15 24
Divide each by 3
3 5 8
We want the ratio of boy to total
boys: total
3 8
someone solve this ?
Answer:
x = 6
Step-by-step explanation:
[tex]\frac{9+x}{3x} = \frac{5}{6}[/tex]
6(9+x) = 5(3x)
6*9 + 6*x = 5*3x
54 + 6x = 15x
54 = 15x - 6x
54 = 9x
x = 54/9
x = 6
check:
(9+6)/(3*6) = 5/6
15/18 = 5/6
Solve the equation
(If possible please show work)
Answer:
x=1
Step-by-step explanation:
-2x+4=1-4x-3
↦-2x+4x=1-3+4
↦2x=2
↦x=2/2
↦x=1
.°. x = 1
Answer:
[tex] - 2x + 4 = 1 - 4x - 3[/tex]
Firstly take all numbers with variable to L.H.S
and Take all numbers to R.H.S
[tex] - 2x - 4x = 1 - 3 - 4[/tex]
Now solve the equation we get our answer
[tex]-6x = -6[/tex]
Take -6 to the R.H.S and divide -6 by -6
[tex]x = 1[/tex]
1 is ur answer mate
Hope it helps
Which is the answer of the expression (x + 4)(x - 9)=0 in standard form?
Answer:
x=-4 or x=9
Step-by-step explanation:
Either factor can be 0 for the result to be 0.
Hence you can solve x+4=0 or x-9=0 with above answers.
Answer:
x(square) - 5x -36 = 0
sorry if its wrong
Please help me! Find the answer and earn 10 points
Answer:
384 square m
Step-by-step explanation:
As per description given in the question, the field is of parallelogram shape. Diagonal divides the parallelogram in two triangles
So, area of field = area of triangle 1 + area of triangle 2
Area of field
= 1/2*32 * 10 + 1/2 * 32 * 14
= 32* 5 + 32 * 7
= 32(5 + 7)
= 32 * 12
= 384 square m
Agent Hunt transferred classified files from the CIA mainframe onto his flash drive. The drive had some files on it before the transfer, and the transfer happened at a rate of 4.44 megabytes per second. After 32 seconds, there were 384 megabytes on the drive. The drive had a maximum capacity of 1000 megabytes.
this is the graph to my last question
Answer:
Use a graphing calc.
Step-by-step explanation:
On the graph, use (0, 0) and (2, 5) to graph the function.
At the Canterbury Dog Fair, 1/4 of the poodles are also show dogs and 1/7 of the show dogs are poodles. What is the least possible number of dogs at the fair?
Answer:
10
Step-by-step explanation:
Let the total number of poodles = [tex]x[/tex]
Let the total number of show dogs = [tex]y[/tex]
[tex]\frac{1}{4}[/tex] of the poodles are show dogs
and
[tex]\frac{1}{7}[/tex] of the show dogs are poodles
[tex]\therefore \dfrac{1}{4}x = \dfrac{1}{7} y[/tex]
As per the question statement, [tex]x[/tex] must be divisible by 4 and
[tex]y[/tex] must be divisible by 7.
And we have to find the least number of dogs.
So, least number divisible by 4 = 4 and
Least number divisible by 7 = 7
So, least values of [tex]x[/tex] i.e. poodles = 4 in which we have 1 show dog
Hence, 3 are not show dogs.
and least value of show dogs i.e. [tex]y[/tex] = 7 (it includes the one poodle which is also show dog).
So, least number of dogs at the fair = 7 + 3 = 10
Find the area of quadrilateral ABCD. A. 27.28 units² B. 33.08 units² C. 28.53 units² D. 26.47 units²
Answer:
[tex] \boxed{ \boxed{ \bold{ \purple{ \sf{28.53 \: {units}^{2} }}}}}[/tex]Option C is the correct option.
Step-by-step explanation:
For ABD
[tex] \sf{ = \frac{2.89 + 8.59 + 8.6}{2} }[/tex]
[tex] \sf{ = \frac{20.08}{2} }[/tex]
[tex] \sf{ = 10.04}[/tex]
∆ ABD = [tex] \sf{ = \sqrt{10.04(10.04 - 2.89)(10.04 - 8.59)(10.04 - 8.6)} }[/tex]
[tex] \sf{ = \sqrt{10.04 \times 7.15 \times 1.45 \times 1.44 }}[/tex]
[tex] \sf{ = \sqrt{149.8891} }[/tex]
[tex] \sf{ = 12.2429}[/tex]
For ∆ ACD ,
[tex] \sf{s = \frac{8.6 + 4.3 + 7.58}{2} }[/tex]
[tex] \sf{ = \frac{20.48}{2} }[/tex]
[tex] \sf{ = 10.24}[/tex]
∆ ACD = [tex] \sf{ = \sqrt{10.24(10.24 - 8.6)(10.24 - 4.3)(10.24 - 7.58} }[/tex]
[tex] \sf{ \sqrt{10.24 \times 1.64 \times 5.94 \times 2.66} }[/tex]
[tex] \sf{ = \sqrt{265.3456} }[/tex]
[tex] \sf{ = 16.2894}[/tex]
Area of quadrilateral ABCD = [tex] \sf{12.2429 + 16.2894}[/tex]
[tex] \sf{ = 28.5323}[/tex]
[tex] \sf{ = 28.53}[/tex] units ²
Hope I helped!
Best regards!
A lift in mine moves down 24m in 87 mins. If it moves in uniforme rate ,find at what distance below the surface ,it will be after 6 mins . If the lift starts from a hileight 10 m above the ground ,find how deep the lift will go from the surface after 70 mins
Answer:
Ok, first we have the relation:
Speed = Distance/Time.
Here we have:
Distance = 24m
Time = 87 mins
Speed = 24m/87mins = 0.279 m/min.
Now, in 6 minutes, the distance moved will be (remember that the movement is downwards)
D(6min) = (0.279m/min)*6min = 1.66 m.
So in 6 minutes, it moves 1.66 meters down, if the initial position is 10m above the ground, then the position after 6 minutes is:
10m - 1.66m = 8.34m above the ground.
And after 70 minutes, the distance moved is:
D(70min) = (0.279m/min)*70min = 19.53m
Again, the initial position is 10m above the ground, so after 70 minutes the position is:
10m - 19.53m = -9.53m
So after 70 minutes, the position is 9.53 meters under the ground.
The lift will go 2.76m deep from the surface after 70 mins.
The lift moves down 24m in 87 minutes.
What is the speed of an object that covers 'd' distance in 't' time?The speed of an object that covers 'd' distance in 't' time is d/t.
So, speed of the lift = 24/87 = 3/29m/min
Distance covered in 6 minutes = 6 * 3/29 = 18/29 m
So, if initially lift is at the surface of the earth, it will go 18/29m below the surface.
Distance covered in 70 minutes = 70* 3/29 =210/29m
So, if the initially lift is at 10 m height, it will go (10-210/29) = -80/29 or 2.76m below the surface of the earth.
Therefore, the lift will go 2.76m deep from the surface after 70 mins.
To get more about time, speed and distance visit:
https://brainly.com/question/26046491