Answer:
60 minutes
Step-by-step explanation:
Given that Employee I can finish washing a car in 30 minutes. and
employee 2 can finish washing a car in 20 minutes.
Assuming that both will wath the car together after n minutes.
So, n must be the integral multiple of 30 as well as 20.
For niminum value of n, n must be the lowest common factor of 30 and 20.
[tex]\Rightarrow n = LCM(30,20) \\\\\Rightarrow n = 60.[/tex]
Hence, after 60 minutes, they will wash a care togethre.
Solve the inequality 30 > 6( 2/3z+1/3)
Answer:
z < 7Step-by-step explanation:
30 > 6( 2/3z+1/3)30 > 6(2/3z) + 6(1/3)30 > 4z + 228 > 4z28/4 > z7 > zz < 7Help me please<>
Translate each sentence to a system of linear equation:
1. The difference of two numbers is 4. Thrice the first number plus twice the second number is 28.
2. You have only 100-peso bills and 50-peso bills in your wallet. There are 40 bills worth 3 500.00 peso.
Answer:
1. 4 and 8
Step-by-step explanation:
8-4=4
4+4+4+8+8=28
Helppp help help help help ASAP help plz
Answer:
first second and third i believe
Step-by-step explanation:
Answer:
the first and third
Step-by-step explanation:
hope i was right lol
HELLP MEEEEEEE:))))))))))))
Answer:
its A
Step-by-step explanation:
cognitive means concerned about a choice or something like a question
and im in elementary and i know it XD
Alissa sells real estate. She makes a 3% commission rate on each sale. Alissa pays 25% of her commission to her home office to pay for expenses. How can Alissa calculate the amount of money she will keep after selling a $250,000 home?
Answer:
$5625
Step-by-step explanation:
Given that :
Commission rate upon sale = 3%
Percentage of commision paid as home office expenses = 25%
Sale made = $250,000
Amount kept :
Amount of commission = 0.03 * 250000 = $7500
Amount of commission paid as Home office expenses :
0.25 * 7500 = $1875
Amount kept :
Commission amount - commission expense
$7500 - $1875
= $5625
Answer:
$5,625/Option C | Option C for the assignment, but the answer to the question for the amount would be $5,625.
Step-by-step explanation:
The amount answer of how to get the amount: Multiply $250,000 by 0.03, and then multiply again by 0.75.
Option C answer: Multiply $250,000 by 0.03, and then multiply again by 0.75.
I'm very sorry if this confused any of you!
Hope this helped!! ^^
Seven less than a number, divided by five, is -2
Answer:
( -3 - 7 ) ÷ 5 = -2Step-by-step explanation:
( x - 7 ) ÷ 5 = -2
( -3 - 7 ) ÷ 5 = -2
( -10 ) ÷ 5 = -2
-10 ÷ 5 = -2
The answer is -3The answer is negative 2 because if you minus negative 3 by 7 first, it will give you negative 10. When you divide negative 10 by 5, you get negative 2, which is the answer to the equation.
Hope this helps! <3
The number is -3
What is Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the number be x
Seven less than a number
So , x - 7
Divided by five, is -2
So ,
( x - 7 ) / 5 = - 2
Multiply by 5 on both sides , we get
x - 7 = - 10
Adding 7 on both sides , we get
x = - 3
Hence, the number is - 3
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HELP PLEASE ANSWER THIS
50 times 5
Answer:
50 times 5 is equal to 250
Step-by-step explanation:
lol, what a great question!!!!
Could someone help me with these two
On how to find the area of these two figures
1st one: 3x^2 (3x squared) then squared again
2nd one: 4y^2 • y^3 +2
50% of the fruits collected were ripe. If 100 fruits were ripe, find the total number of fruits collected.
Answer:
200 fruits
Step-by-step explanation:
The questions states that 50% of the fruits were ripe, and that 100 fruits were ripe
Therefore: 100 = 50%
Which makes the total amount of fruits 200
Don't believe me? Reverse work:
200 / 2 = 100
200 = 100%, 100 = 50%
What is the equation of the line that is perpendicular to the line y = 6 and passes through the point (-4,-3)?
O x = -4
0 x = -3
Ox=-1/6
0 x = 6
To Find :
The equation of the line that is perpendicular to the line y = 6 and passes through the point (-4,-3)
Solution :
Let, equation of line perpendicular to given line is y = m ....1)
Here, m is a constant.
Putting y = -3 in above equation, we get :
-3 = m
Putting value of m in equation 1), we get :
y = -3
Therefore, correct option is b) x = -3.
Can someone please help me with this problem. I will give brainliest!
Write the equation of the line that is perpendicular to the y-axis and passes through the point (-4, 5).
Explanation:
The y axis is vertical. Anything perpendicular to this is horizontal.
All horizontal linear equations are of the form y = k, where k is any number.
In this case, k = 5 so that the line y = 5 goes through all points with y coordinate 5. Two points on this line are (-4,5) and (1,5).
Note how y = 5 is equivalent to y = 0x+5. We see the slope is 0 and the y intercept is 5. Compare this to y = mx+b.
Multiply (3x-4)(2x-1)
Answer:
6x^2+4
Step-by-step explanation:
multiply :D
Devaughn is 10 years younger than Sydney. The sum of their ages is 74. What is Sydney's age? yearsold
Step-by-step explanation:
x = devaughn age
y = sydney age
x = y - 9
x + y = 61
y-9 + y = 61
2y= 61+9
2y = 70
y = 35
x = 35 - 9 = 26
check
35 + 26 = 61
35- 26 = 9
Hope this helps!
Can someone please help me
Answer:
I think before she pur 75% to her push ups she did.....probably only 18 pushups
Answer:
B
Step-by-step explanation:
(This method only works for 25%, 50%, 75% and 100% as far as i'm aware.) We know that 49 can only be divided by 1, 49 and 7 evenly. We can take 7 25%'s, and then match things up
25% (7)
50% (14)
75% (21)
100% (28) (Whole)
125% (35)
150% (42)
175% (49)
David threw a baseball into the air. The function of the height of the baseball in feet is
h = 80t − 16t^2
, where t represents the time in seconds after the ball was thrown. The graph
of the function is below.
a. Use the graph to determine how long it took for the ball to
fall back to the ground.
b. What is the maximum height of the baseball?
Answer:
a). 5 seconds
b). 120 feet
Step-by-step explanation:
Function representing the relation between the height achieved by a baseball and time 't' is,
h = 80t - 16t²
a). Total time taken by the ball to come back to the ground = 2 × Time taken by the baseball to reach the maximum height
= 2×(2.5) [From the graph attached]
= 5 seconds
b). Maximum height achieved by the baseball = 120 feet
6th grade math i mark as brainliest
Answer: i think it is the first one gl
Step-by-step explanation:
Answer:
Coefficient
Step-by-step explanation:
A truck delivers 478 dozen eggs to stores in one day. Write and solve an equation to find n, the number of eggs the truck delivers in one day
Solve the inequality 7y + 2 < 5y + 12
Answer:
In the pic
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)
how many solutions does 3x = 2x + 4 have
Answer:
One Solution: x = 4
Step-by-step explanation:
Step 1:
3x = 2x + 4 Equation
Step 2:
3x - 2x = 4 Subtract 2x on both sides
Answer:
x = 4
Hope This Helps :)
The temperature fell from 0 Degrees Fahrenheit to 15 and one-half Degrees Fahrenheit below 0 in 5 and three-fourths hours. Wen tried to find the change in temperature per hour. Her work is shown below.
Negative 15 and one-half divided by 5 and three-fourths = negative StartFraction 31 over 2 EndFraction divided by StartFraction 23 over 4 EndFraction = negative StartFraction 31 over 2 EndFraction times StartFraction 23 over 4 EndFraction = Negative StartFraction 713 over 8 EndFraction
When she checked the answer by estimating, it did not make sense. What error did Wen make?
Wen incorrectly converted a mixed number to an improper fraction.
Wen added the numerators and denominators instead of multiplying.
Wen did not take the reciprocal of the divisor.
Wen did not change the division problem to multiplication.
Answer:
Wen did not take the reciprocal of the divisor.Step-by-step explanation I hope this helps.
Answer:
it is the 3rd answer
Step-by-step explanation:
78 students are separated into groups of 8 for a field trip.how many groups are there.the remaining students form a smaller group of how many students
Answer:
9 groups with 6 extra students
Step-by-step explanation:
78/8= 9 .75
we take the whole number =9
8*9=72
78-72=6
6 extra students
HELP I NEED TO TURN THIS IN
Answer:
EF=35
EG=44
Step-by-step explanation:
If a line goes through points (-2, 9) and (0, 3), what is its slope?
3
-3
6
-1/3
Answer:
The slope of a line is:
[tex]m=-3[/tex]
Hence, option B is true.
Step-by-step explanation:
Given the points
(-2, 9) (0, 3)Finding the slope between (-2, 9) and (0, 3)
[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\left(x_1,\:y_1\right)=\left(-2,\:9\right),\:\left(x_2,\:y_2\right)=\left(0,\:3\right)[/tex]
[tex]m=\frac{3-9}{0-\left(-2\right)}[/tex]
[tex]m=-3[/tex]
Therefore, the slope of a line is:
[tex]m=-3[/tex]
Hence, option B is true.
I need help on this asap I'm stuck on these questions
I need help on this asap I'm stuck on these questions
Answer:
There is no picture
If mZ1 = 42, what is m
Z2
Answer:
48?
Step-by-step explanation:
What is the slope of the line passing through the given points 4,2 and -2,1
Answer:
Alright, here is the formula.
m = (y2 -- y1) / (x2 -- x1)
So, now we have to take the points and replace them with the variables.
m = (1 - 2) / (-2 - 4)
Great! So now, we have to solve.
1 - 2 = -1
-2 - 4 = -6
So now, it would be:
-1/6
That is the slope! Hope this helps! :)
Parallelogram PQRS is shown.measure of angle s=(3x),measure of angle R=120, and measure of angle Q=(2y) find the value of X
Parallelograms have adjacent angles supplementary (sum to 180).
For pair r and s,
3x+120=180, => x=(180-120)/3=20 °
Similarly, for pair q and r,
2y+120=180 => y=(180-120)/2 = 30 °
Bro can somebody plz just help me answer this question!
Answer: I think it's 17 but I'm not 100%
Step-by-step explanation:
for a fundraising campaign, a club has a choice of buying products for $20 plus 50% of the sales or $100 plus 25% of the sales. For what level of sales would the club have to pay the same total with either deal?
Answer:
Step-by-step explanation:
20 plus .5x = 100 plus .25x
.25x=80
x=320.
An equation is formed of two equal expressions. The level of sales for which the club have to pay the same total with either deal is $320.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
Let the level of sales be represented by x, and the total amount to be paid be represented by y. Therefore, for the first option, the equation can be written as,
y = 20 + 0.5x
Also, For the second option, the equation can be written as,
y = 100 + 0.25x
Now, the level of sales for which the club have to pay the same total with either deal can be found by computing the equation with each other. Therefore,
20 + 0.5x = 100 + 0.25x
0.5x - 0.25x = 100 - 20
0.25x = 80
x = 320
Hence, the level of sales for which the club have to pay the same total with either deal is $320.
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Chris earns $44 washing 4 cars. At this rate, how much does Chris earn washing 6 cars?
Answer:
$66 for 6 cars.
Step-by-step explanation:
This is a rather simple problem. To find the answer you must divide 44/4= 11. Now knowing that Chris earns $11 per car if you multiply 11x6= 66 you can find out Chris makes $66 for 6 cars.