Answer:
5.3 hours
Step-by-step explanation:
Jane can paint the office by herself in 7 hours.
with an associate, she can paint the office in 3 hours.
The combined work rate is 3 hours per office
Required
the work rate for the associate
Step two:
let the expression for the wok rate be
1/A+1/B= 1/T
1/7+1/B=1/3
1/B=1/3-1/7
1/B= 8-4/21
1/B= 4/21
B= 21/4
B=5.3 hours
the work rate for the associate is 5.3 hours
PLEASE HELP!!
finding square roots of negative numbers
show your work
1-) V-18
2-) 2V-16
Answer:
Work shown below!
Step-by-step explanation:
[tex]\sqrt{-18}=\sqrt{18i^{2} } =\sqrt{2*9i^{2} }=3i\sqrt{2}[/tex]
[tex]2\sqrt{-16} =2\sqrt{16i^{2} } =4i*2=8i[/tex]
What is 10- 6 1/2? long way
Answer:
3 1/2
Step-by-step explanation:
10-6 1/2
20/2 -6 1/2
20/2- 13/2= 7/2
7/2= 3 1/2
Answer:
[tex]\frac{20}{2\\} \\[/tex] - [tex]\frac{13}{2}[/tex] = [tex]\frac{7}{2}[/tex] or 3[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
make the denominator the same.
so
10*2= 10 so
[tex]\frac{20}{2\\} \\[/tex]
then 6*2= 12+1= 13 so
[tex]\frac{13}{2}[/tex]
20-13= 7
so now
[tex]\frac{7}{2}[/tex] which is equal to 3[tex]\frac{1}{2}[/tex]
Hope this helps! (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧\
Have a nice day!! ( ﾟдﾟ)つ Bye
who wants to play rocket league with me
I'm gold3 so sry
Answer:
Bet
Step-by-step explanation:
Answer:
Your on
Step-by-step explanation:
Does someone have a fennec in rocket league and someone who can trade it on switch?
A math tutor makes $12 an hour for the first 40 hours worked
You’re playing tug-of-war in gym class at the start you take two steps back the other team pulls you and takes three steps forward which equation can be used to find how far you are from your original position?
A: -3+2
B: -2+(-3)
C: -2+3
D: 2+3
Can someone help meh on this question?
What is the distance between the points -21,-7 and -5,-7
Answer:
16
Step-by-step explanation:
Answer:
give the brainliest to the girl
Step-by-step explanation:
Jillian and Dawn are playing a game of miniature golf. In this game, the score on a hole is the number of putts it takes to
get the ball into the hole. The winner is the player with the lowest score. After playing 18 holes, Jillian's mean is 2.4 and
Dawn's mean is 3.3. Which explains who won the game?
O Jillian won the game because her score varied less than Dawn's score.
O Jillian won the game because the person with the lower mean took fewer putts on average for each hole.
O Dawn won the game because the person with the greater mean played better.
O Dawn won the game because her mean absolute deviation was less than Jillian's.
Next
Submit
Save and Exit
Mark this and return
Answer: B
Step-by-step explanation:
If you can help me with this whole thing i will be forever in your dept
Jesse and Amir were assigned the same book to read. Jesse started reading on Saturday, and he is reading 30 pages a day. Amir didn't start until Sunday, but he is reading 35 pages a day.
How many days will it take Amir to catch up to Jesse, and how many pages will they each have read?
Answer the questions to solve this problem using a system of equations.
1. Write an equation to represent the number of pages Amir has read. Use x to represent the number of days Amir has been reading and y to represent the number of pages he has read.
Write your answer in the space below.
2. Write an equation to represent the number of pages Jesse has read.
Using x, the number of days Amir has been reading, write an expression to represent the number of days Jesse has been reading. Remember that Jesse started reading one day before Amir. Use this expression to write an equation for the number of pages Jesse has read. Let y represent the number of pages read.
Write your answer in the space below.
3. Write the system of equations using your answers from questions 1 and 2.
Write your answer in the space below.
4. You will use substitution to solve this system. Which variable will you substitute for and why? Show the equation that results from the substitution.
Write your answer in the space below.
5. Solve the system of equations. Show your work.
Write your answer in the space below.
6. Interpret your solution. How many days does it take Amir to catch Jesse? At that time, how many pages have they read?
Write your answer in the space below.
Answer:
Answer:
6 days
210 pages
Step-by-step explanation:
As stipulated by the question, let the number of days Amir has been reading be x and the number of pages he had read to be y.
Now since he reads 35 pages per day.
Then mathematically;
y = 35x
For Jesse, He started reading a day before, this means that the number of days he had read would be x + 1. Since he reads 30 per day, the total number of pages he would have read is 30(x+1)
To find the number of days which is x, we have to assume that at a point in time, the number of books they would have read would be the same meaning that
Also; y = 30(x + 1)
Equating the two situations
35x = 30(x + 1)
35x = 30x + 30
35x -30x = 30
5x = 30
x = 30/5
x = 6 days
This means that it will take Amir 6 days to catch Jese.
The number of books they would have read by then is y = 35x = 30(x + 1)
= 35 * 6 or 30(6+1)
= 210
Step-by-step explanation:
Answer: dude above me copied
Step-by-step explanation:
1. y = 35x
2. y = 30x + 1
3. y = 35x
y = 30 x + 1
4. Its more convenient to substitute y because It's easier.
35x = 30(x + 1)
5. 35x = 30x + 1
35x = 30x + 30
35x -30x = 30
5x = 30
x = 6 (30/5 = 6)
35 x 6 = 210 (y)
6. Both people have read 210 pages and it takes amir 6 days to catch up.
Write the following statement as a mathematical expression.
Let x be a number.
The quotient of two and a number, subtracted from seventeen
Answer:
17 - (2 / x)
Step-by-step explanation:
because it is being subtracted from 17. that goes first, and then x is being divided by 2.
Hope this helps!
Answer:
17 - (2 / x)
Step-by-step explanation:
i just did it and got a 100%
Laura bought apples to send to her friend Brad by mail. Because of mailing restrictions, the total mass of the apples cannot exceed 23 pounds. If the mass of each apple is 5 ounces, what is the maximum number of apples Laura can send?
A.72
B.73
C.74
D.75
Answer:
D. 75 bc it should be that
Answer:
B 73
so I had four answer choices A 72 B 73 C 74 D 75 Someone had put that the answer was D . But, I had this same problem on my test I picked D and got it wrong. so clearly its not D. theses are medium apple's 1lb is 16oz I apple is 5oz 23lbs = 368oz 3 apples =15oz
take 368 and divided it by 5 you get 73.6
Mark was remodeling his house. He took 26 2/3 square feet from 3 different rooms. What was the average change in square footage per room?
-9/80
-80
-26 2/9
-8 8/9
Please help!
Answer: 8 8/9
Step-by-step explanation:
From the question, we are informed that Mark was remodeling his house and that he took 26 2/3 square feet from 3 different rooms.
The average change in square footage per room will be calculated as:
= 26 2/3 ÷ 3
= 80/3 × 1/3
= 80/9
= 8 8/9
Therefore, the answer is D.
MATH 123 at the downtown Indianapolis campus has approximately 580 students enrolled. In Lawrence, MATH 123 has a total of 340 students enrolled. Find the relative change of BOTH scenarios and complete the each sentence below. The downtown Indianapolis campus has % more students enrolled than at the Lawrence campus. % less The MATH 123 enrollment numbers for Lawrence are than those enrolled at the downtown Indianapolis campus.
Answer:
The downtown Indianapolis campus has 71% more students enrolled
The math 123 enrollment for Lawrence are 41% less than those enrolled downtown.
Step-by-step explanation:
An item cost $420 before tax, and the sales tax is $33.60. Find the sales tax
Answer:
8%
Step-by-step explanation:
used a calculator
Order the numbers from least to greatest. 0.12, 10%, 340, 0.08
Answer:
∞
Step-by-step explanation:
Answer:
0.08, %10, 0.12 and 340
Step-by-step explanation:
Mackenzie has a 30 ounce soft drink. She drinks 28 ounces. Enter the percentage of ounces Mackenzie has left of her soft drink. Round your answer to the nearest hundredth.
Answer:
100
Step-by-step explanation:
30-28=100 if u round it to thr nearest hundreth because
30 2-2=0
- 18-8=10
-28
10 rounded to tye nearest hunderth is 100
can you please help me with this question
Answer:
tbh im dumb so
Step-by-step explanation:
Determine if the point (12, 20) is on the
graph of y = 2x – 5. Justify your answer.
Answer:
456[67]98
Step-by-step explanation:
Answer:
Step-by-step explanation:
for the point (12,20) to be on the graph the equation of the line has to be true.
y=2x-5 so is it true that
20= 2*12-5
20=19 false
so the point is not on the graph
If the terminal point determined by t is (-5,-4), then
\sin (t) =
;
\cos (t) =
;
\tan (t) =
.
Answer:
The trigonometric ratios associated with (-5, -4) are [tex]\sin t \approx -0.625[/tex], [tex]\cos t \approx -0.781[/tex] and [tex]\tan t = 0.8[/tex].
Step-by-step explanation:
Let [tex]\vec u = (x,y)[/tex]. From Trigonometry, we remember the following definitions for the trigonometric ratios, dimensionless:
[tex]\sin t = \frac{y}{\sqrt{x^{2}+y^{2}}}[/tex] (1)
[tex]\cos t = \frac{x}{\sqrt{x^{2}+y^{2}}}[/tex] (2)
[tex]\tan t = \frac{y}{x}[/tex] (3)
If we know that [tex]x = -5[/tex] and [tex]y = -4[/tex], then the trigonometric ratios are, respectively:
[tex]\sin t = \frac{-4}{\sqrt{(-5)^{2}+(-4)^{2}}}[/tex]
[tex]\sin t \approx -0.625[/tex]
[tex]\cos t = \frac{-5}{\sqrt{(-5)^{2}+(-4)^{2}}}[/tex]
[tex]\cos t \approx -0.781[/tex]
[tex]\tan t = \frac{-4}{-5}[/tex]
[tex]\tan t = 0.8[/tex]
The trigonometric ratios associated with (-5, -4) are [tex]\sin t \approx -0.625[/tex], [tex]\cos t \approx -0.781[/tex] and [tex]\tan t = 0.8[/tex].
WILL GIVE BRAINLYEST AND WORTH 25 PTS
Select all the correct lines that represent functions.
Answer:
The swiggle is not a funtion
the straight line is
the mouth shape thing is not
the circle is not
the parabula or u-shaped thing is
Step-by-step explanation:
Sally is working on a new recipe for her party. She needs to get 3.5 pounds of strawberries, 1 quart of milk, and 1 box of sugar cookies. The prices below list how much items will cost Sally at the grocery store.
Strawberries $1.68 per pound
Quart of milk $2.38 each
Box of sugar cookies $1.99 each
Part A:
How much will 3.5 pounds of strawberries cost?
Part B:
What will Sally's total grocery bill be?
I REALLY NEED HELP PLEASE STAT
Answer: Part A. 5.88
Part B. 10.25
Step-by-step explanation:
Brainliest please ^^
Help please
The answer choices are
A) x=3/x
B)x=9/x
C)0=3/x+x
D)0=9/x+x
Answer:
A
Step-by-step explanation:
You can name a plane with 3 Collinear points
True or False??
Guys can you please help me ?!!!!!!):
Answer:
12+20=32
32/2=16
20-16=4
Vertex x-int is 4.
Step-by-step explanation:
5x - 20y = 2 in
slope intercept form
Answer:
-20+5x=2.
Step-by-step explanation:
..............
3 fair coins are tossed.
a) What is the probability of getting all 3 heads? (My Answer is 1/8)
b) What is the probability of getting all 3 tails? (My Answer is 1/8)
c) What is the probability of getting all 1 head and 2 tails? (My Answer is 3/8)
d) What is the probability of getting all 2 heads and 1 tail? (My Answer is 3/8)
My Question:
e) What do the probabilities from parts (a) to (e) add up to?
Answer:
1/8 + 1/8 + 3/8 + 3/8 = 2/8 + 6/8 = 8/8 = 1
So the answer would be 1.
What is the slope to y = 2x + 4
Answer:
2
Step-by-step explanation:
the number right next to the x is the slope, if there is no number, then the slope is 1
your equation in a y = mx + b format"
y is the outputm is the slopex is the inputb is the y interceptDEF JIH
Someone help me please
Answer:
ED is congruent to IH
ED is congruent to IH
4. What is the value of the expression |-31|+|-9|?
F. -40
G. -22
H. 29
I. 40
some on help me again plsss
Answer:
40
Step-by-step explanation:
because if its between the lines and its negitive and you change it to positive then it well be 31 +9
This is urgent PLEASE help me
Answer:
at -6
Step-by-step explanation:
hope that help