Answer:
12 minutes
Step-by-step explanation:
The Hot tap fills 1/30th of the bath in 1 minute. The cold tap fills 1/20th of the bath in one minute. In one minute both taps together will fill (1/30 + 1/20) of the bath, which is 5/60ths or 1/12th of the bath. Since it takes one minute to fill 1/12th of the bath, it’ll take 12 minutes to fill the bath
The sum of all digits of some number is 210. The number is always divisible by:
A. 3
B. 2
C. 5
D. 9
E. 10
Please show work and I will mark brainlist.
Answer:
2
Step-by-step explanation:
so so that you could get both halves, we had to divide by two then I got 105 +105 meaning 210 could be divided by 2
My question... please answer asap
Answer:
slope=1/4
y-intercept=3
y=.25x+3
Step-by-step explanation:
slope=rise over run so
slope=1/4
y-intercept is the value of y where the line crosses the y axis..
y-intercept=3
In y=mx+b form m is slope and b is y-intercept so...
y=.25x+3
Karen invested $2,000 in a special savings account.
The balance of this special savings account will double
every 5 years. Assuming that Karen makes no other
deposits and no withdrawals, what will be the balance
of Karen's investment at the end of 40 years?
A. $ 80,000
B. $ 256,000
C. $ 400,000
D. $ 512,000
E. $1,024,000
Answer:
D. $512,000
Step-by-step explanation:
Well if the balance doubles every 5 years, then dividing 40 by 5 gives us the number of times the money will double, which is 8. We can then turn this into the equation [tex]2000(2^{8})[/tex]. [tex]2^8[/tex] can be simplified to 256. Multiply that by 2000 and we get our answer, 512000. Hope this helps!
Pls mark brainliest!It takes Paul 9 hours longer than Li Ming to paint a house. Working together they can do the job in 20 hours. How long would it take Li Ming, working alone, to paint the house ?
Li Ming can paint the whole house in 10 hours
Steve sold 36fruit baskets for a school fundraiser. Edie sold 25% of the number of baskets that Steve sold
Answer:
Edie sold 9 fruit baskets
Step-by-step explanation:
Please explain how you got the answer!
Answer:
16
Step-by-step explanation:
1250/ 80 = 125/8 ≈ 15.6 rounds up to 16
I solved this quadratic using the square root property. I did it 2 ways but I am not sure which one is correct.
Answer:
it's your second answer: )
Answer:
the one on the right
Step-by-step explanation:
:) s s
1
6
Drew uses container of
carpet freshener to
vacuum of his house.
If his entire house is
carpeted, at this rate,
what fraction of the
container of carpet
freshener will Drew use
to vacuum his entire
house?
How many almonds in the cup? (1/4 cup) Help me
Answer:
The amount of almonds in the fourth cup are 40
Select the function that is nonlinear.
a
y = 3x - 4
b
y = 2x3 - 10
c
y = 4x -12
d
y = x + 101
Answer:
B
Step-by-step explanation:
A C and D are all linear. The powers on x in all three questions is 1. For example the first answer could be written as y = 3x^1 - 4. C and D are much the same.
So if you are thinking that B must be the answer, you would be right. x is raised to the third power -- or I think that is what is intended. y = x^3 - 10
Please help will give brainliest answer
Answer:
Both of them, since if you simply their factorizations you will get 45y^6
PLEASE HELP ASAP GIVING BRAINLIEST W/ POINTS PLSS
9514 1404 393
Answer:
108 ft²
Step-by-step explanation:
When x=6, the length is 6+6 = 12 ft, and the width is 6+3 = 9 ft. The area is given by ...
A = LW
A = (12 ft)(9 ft) = 108 ft²
The area of Cameron's garden is 108 ft².
5 x 100 + 4 x 10 + 6 x 1 + 2 x ( 1/10) + 8 x ( 1/1000) =?
Answer:
68276/125
Step-by-step explanation:
500+40+6+1/5+1/125
546+26/125
68276/125
Answer:
546.208
Step-by-step explanation:
5
⋅
1
0
0
+
4
⋅
1
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+
6
⋅
1
+
2
(
1
1
0
)
+
8
(
1
1
0
0
0
)
{\color{#c92786}{5}} \cdot {\color{#c92786}{100}}+4 \cdot 10+6 \cdot 1+2x(\frac{1}{10})+8x(\frac{1}{1000})
5⋅100+4⋅10+6⋅1+2x(101)+8x(10001)
5
0
0
+
4
⋅
1
0
+
6
⋅
1
+
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1
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1
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1
+
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(
1
1
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)
+
8
(
1
1
0
0
0
)
500+{\color{#c92786}{4}} \cdot {\color{#c92786}{10}}+6 \cdot 1+2x(\frac{1}{10})+8x(\frac{1}{1000})
500+4⋅10+6⋅1+2x(101)+8x(10001)
5
0
0
+
4
0
+
6
⋅
1
+
2
(
1
1
0
)
+
8
(
1
1
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0
05
0
0
+
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0
+
6
⋅
1
+
2
(
1
1
0
)
+
8
(
1
1
0
0
0
)
500+40+{\color{#c92786}{6}} \cdot {\color{#c92786}{1}}+2x(\frac{1}{10})+8x(\frac{1}{1000})
500+40+6⋅1+2x(101)+8x(10001)
5
0
0
+
4
0
+
6
+
2
(
1
1
0
)
+
8
(
1
1
0
0
0
)
0
0
+
4
0
+
6
+
2
⋅
1
1
0
+
8
(
1
1
0
0
0
)
500+40+6+{\color{#c92786}{2}}x \cdot {\color{#c92786}{\frac{1}{10}}}+8x(\frac{1}{1000})
500+40+6+2x⋅101+8x(10001)
5
0
0
+
4
0
+
6
+
1
5
+
8
(
1
1
0
0
0
0
0
+
4
0
+
6
+
1
5
+
8
(
1
1
0
0
0
)
500+40+6+\frac{1}{5}x+8x(\frac{1}{1000})
500+40+6+51x+8x(10001)
5
0
0
+
4
0
+
6
+
1
5
+
8
(
1
1
0
0
0
)
)
0
0
+
4
0
+
6
+
1
5
+
8
(
1
1
0
0
0
)
500+40+6+\frac{1x}{5}+8x(\frac{1}{1000})
500+40+6+51x+8x(10001)
5
0
0
+
4
0
+
6
+
5
+
8
(
1
1
0
0
05
0
0
+
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0
+
6
+
5
+
8
⋅
1
1
0
0
0
500+40+6+\frac{x}{5}+{\color{#c92786}{8}}x \cdot {\color{#c92786}{\frac{1}{1000}}}
500+40+6+5x+8x⋅10001
5
0
0
+
4
0
+
6
+
5
+
1
1
2
5
5
0
0
+
4
0
+
6
+
5
+
1
1
2
5
500+40+6+\frac{x}{5}+\frac{1}{125}x
500+40+6+5x+1251x
5
0
0
+
4
0
+
6
+
5
+
1
1
2
5
500+40+6+\frac{x}{5}+\frac{1x}{125}
500+40+6+5x+1251x
9
Multiply by 1
5
0
0
+
4
0
+
6
+
5
+
1
1
2
5
500+40+6+\frac{x}{5}+\frac{1x}{125}
500+40+6+5x+1251x
5
0
0
+
4
0
+
6
+
5
+
1
2
55
0
0
+
4
0
+
6
+
5
+
1
2
5
{\color{#c92786}{500}}+{\color{#c92786}{40}}+{\color{#c92786}{6}}+\frac{x}{5}+\frac{x}{125}
500+40+6+5x+125x
5
4
6
+
5
+
1
2
5
{\color{#c92786}{546}}+\frac{x}{5}+\frac{x}{125}
546+5x+125x
Show less
Solution
5
4
6
+
5
+
1
2
5
Which numbers could be a solution to the inequality? -6 < 3x+ 9 <21
Step-by-step explanation:
-6-9<3x<21-9
-15<3x<12
1) -15<3x
-5<x
2) 3x<12
x<4
so the range of the solution is -5<x<4
fill in the blanks with the correct missing term of each given sequence
8,11,_,17,20
Answer:
14 i think
Step-by-step explanation:
im not that sure but yeah
Which is equivalent to the series shown?
12
Which expansion is equivalent to the summation
shown?
12
12
20 Σ
1
n=9 n=9
n +
n=9
X
1 1 1 1
20+9+10+11+12+
9 10 11 12
-
Σ (20n +
+
Ź 201n+ )
20
n
n-9
x
1
1
-
1
11
1
12
20(9 + 10 +11+12) +.
9 10
2019 +10 +1
X
1 1 1
20 9+10 +11+12+
9 10 11 12
n +
n-9
12 12
1
12 + 20
n
n=9 n-9
12 12
1
n+
n-9 n=9n
1 1 1
9+10+11+12+ 20
9 10 11 12
20Σ
COMPLETE
Na
Intro
Final
Answer:
first one is (d) second one is (b)
Step-by-step explanation:
What is 1.23625 rounded to the nearest cent?
Answer:
1.24
Step-by-step explanation:
10) Triangle GHK has an area of 273cm². Write and solve an equation to find the height, h, of triangle GHK
base is 26 cm
Answer:
21cm
Step-by-step explanation:
A=(b*h) /2-->h=(2*A)/b-->
h=(2*273)/26-->
h=21 cm
The ratio of boys to girls is 1:1.
If there are 250 boys, how many
girls are there?
Answer:
250 girls
Step-by-step explanation:
Boys = Girls
250 = Girls
Pls answer I got 15 points and omg pls be correct
Answer:
$119.79
Step-by-step explanation:
Formula:
[tex]A=P(1+\frac{r}{n} )^{nt}[/tex]
Given:
P = 90
r = 0.1
t = 3
n = 1
Work:
[tex]A=P(1+\frac{r}{n} )^{nt}\\\\A=90(1+\frac{0.1}{1} })^{3*1}\\\\A=90(1.1)^3\\A=90(1.331)\\A=119.79[/tex]
Please hurry and solve for 40 points
Answer:
x=3 y=-2
Step-by-step explanation:
Elimination would bring the equation to
3x=18
18/6 is 3
6-3y=12
-3y=6
y=-2
A certain test preparation course is designed to help students improve their scores on the USMLE exam. A mock exam is given at the beginning and end of the course to determine the effectiveness of the course. The following measurements are the net change in 3 students' scores on the exam after completing the course:
15,20,18
Using these data, construct a 90% confidence interval for the average net change in a student's score after completing the course. Assume the population is approximately normal.
Answer:
The 90% confidence interval for the average net change in a student's score after completing the course is (13.42, 21.92).
Step-by-step explanation:
Average change in the sample:
[tex]M_{s} = \frac{15+20+18}{3} = 17.67[/tex]
Standard deviation of the sample:
[tex]s = \sqrt{\frac{(15-17.67)^2+(20-17.67)^2+(18-17.67)^2}{2}} = 2.52[/tex]
We have the standard deviation for the sample, so the t distribution is used.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 3 - 1 = 2
90% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 2 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.9}{2} = 0.95[/tex]. So we have T = 2.92
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}} = 2.92\frac{2.52}{\sqrt{3}} = 4.25[/tex]
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 17.67 - 4.25 = 13.42
The upper end of the interval is the sample mean added to M. So it is 17.67 + 4.25 = 21.92
The 90% confidence interval for the average net change in a student's score after completing the course is (13.42, 21.92).
m(x) = -3x + -2
Find m(-4)
Answer:
3x +2 =5
and m(x) was x=5 ,= m= -4
Suppose 60% of a large group of animals is infected with a particular disease. What is the probability that at least 2 animals are infected in a sample of size 5?
0.0870
0.3174
0.913
0.6826
Answer:
0.6826
Step-by-step explanation:
Probabilities are used to determine the chances of events.
The probability that at least 2 animals are infected is (c) 0.913
The proportion of the animal infected is given as:
[tex]p =60\%[/tex]
The probability is then calculated using the following binomial equation
[tex]P(x) = ^nC_xp^x(1-p)^{n-x}[/tex]
In this case,
[tex]n = 2[/tex]
To calculate the probability that at least 2 animals are infected, we start by calculating the probability that not up to 2 animals are infected.
So, we have:
[tex]P(x<2) =P(0) + P(1)[/tex]
This gives
[tex]P(x<2) = ^5C_0 \times (60\%)^0 \times (1-60\%)^{5-0}+ ^5C_1 \times (60\%)^1 \times (1-60\%)^{5-1}[/tex]
Simplify
[tex]P(x<2) = 1 \times (60\%)^0 \times (40\%)^{5}+ 5 \times (60\%) \times (40\%)^{4}[/tex]
[tex]P(x<2) = 0.08704[/tex]
Using the complement rule, we have:
[tex]P(x \ge 2) = 1 - P(x<2)[/tex]
So, we have:
[tex]P(x \ge 2) = 1 - 0.08704[/tex]
[tex]P(x \ge 2) = 0.91296[/tex]
Approximate
[tex]P(x \ge 2) = 0.913[/tex]
Hence, the probability is (c) 0.913
Read more about probabilities at:
https://brainly.com/question/251701
Which model represents the equation 4r = 24
Answer:
FOURTH
Step-by-step explanation:
AHHHHHHHHHHHHHHHHHHH 6 x 4 = 24
x IS 6
The model that represents the equation 4x = 24 is the 4th table.
How to find the model that represents the equation?The model that represents the equation 4r = 24 can be calculated as follows;
4x = 24
where
x is the variable
Therefore, 4x can be represented as follows:
4x = x + x + x + x
Therefore, the model that represents the equation 4x = 24.
learn more on model here: https://brainly.com/question/24371942
#SPJ2
I need some help with my grade 10 math work
A music store had a sale on tapes and CDs. Tapes were on sale for $5 each and CDs were on sale for $7. During the sale, 32 tapes and CDs were sold. The cash receipts from the sale of the tapes and CDs, before taxes, were $200. Let x represent the number of tapes and let y represent the number of CDs sold during the sale.
Answer:
12 tapes and 20 CDs were sold.
Step-by-step explanation:
Since a music store had a sale on tapes and CDs, and tapes were on sale for $ 5 each and CDs were on sale for $ 7, and during the sale, 32 tapes and CDs were sold, and the cash receipts from the sale of the tapes and CDs, before taxes, were $ 200, to determine the number of CDs and tapes sold during the sale, the following calculation must be performed:
7 - 5 = 2
32 x 5 = 160
200 - 160 = 40
40/2 = 20
32 - 20 = 12
12 x 5 + 20 x 7 = X
60 + 140 = X
200 = X
Therefore, 12 tapes and 20 CDs were sold.
I need help if you get right I will mark you
Answer:
20% of his budget
Step-by-step explanation:
1500 - 100% /10
150 - 10 % ×2
300 - 20%
Answer:
20%
Step-by-step explanation:
The % is 300 / 1500 * 100% = 0.2 * 100% = 20%
Pls help I’ll mark brainliest
Answer:
Answer:
Step-by-step explanation:
Step-by-step explanation:
Answer:
Answer:
Step-by-step explanation:
Step-by-step explanation:
Answer:
Answer:
Step-by-step explanation:
Step-by-step explanation:
Answer:
Answer:
Step-by-step explanation:
Step-by-step explanation:
an artist is painting a mural on a wall to make sure that the picture is painted accurately to her vision she creates a grid for the wall with each unit measuring a meter in the mural at the second event at 2 to and the event at -2 for the artist plans to fail in the Triangular space between the three events with colored pattern what is the area of the space?
help! how do i do this?
Answer:
See below
Step-by-step explanation:
5)
k/x = w - v
Multiply by x to get it out of the denominator of the fraction.
k = wx - vx
Switch the terms so they are easier to work with.
wx - vx = k
Factor x out.
x(w - v) = k
Divide by w - v to get x by itself.
x = k/w - v.
6)
ac = d - r
Divide by c to get a by itself.
a = d/c - r/c
Combine the two fractions to simplify.
a = d-r/c.