Answer:
M+R=90 (Given)
(5x+10)+55=90 (given)
5x+10=90-55
5x+10=35
5x=35-10
5x=25
5x÷5=25÷5 (divide both sides by 5)
x=5
dominique sells 5 candles for a fundraiser. sofia sells 12 candles earning $24.50 more than dominique. how much does one candle cost
a. $3.00 b. $3.50 c. $4.00 d. $4.50
Answer:
$3.5
Step-by-step explanation:
12 - 5 = 7
24.5 / 7 = 3.5
In the last several weeks, 18 days saw rain and 29 days saw high winds. in the same time period 7 days saw both rain and high winds. How many days saw either rain or high winds
Answer:
40 days saw either rain or high winds
Step-by-step explanation:
We solve this question using Venn sets.
I am going to say that:
Set A: Rain
Set B: High winds.
18 days saw rain
This means that [tex]A = 18[/tex]
29 days saw high winds
This means that [tex]B = 29[/tex]
7 days saw both rain and high winds.
This means that [tex]A \cap B = 7[/tex]
How many days saw either rain or high winds?
This is
[tex]A \cup B = A + B - A \cap B[/tex]
Sp
[tex]A \cup B = 18 + 29 - 7 = 40[/tex]
40 days saw either rain or high winds
Find three different ratios that are equivalent to ratio 3 : 11
Answer:
6:22
9:33
12:44
Step-by-step explanation:
Giben ratio 3:11
Multiplying by 2,
6:22
Multiplying by 3
9:33
Multiplying by 4
12:44
A kite was broken into two triangles of the same size and shape .
The area of each triangle is ? Square centimeters
20,40,80,160
The total are of the kite is ? Square centimeters
40,80,160,320
ANSWER_
The answers are 40 and 80
Answer:
hey the answer is 402
Step-by-step explanation:
Answer:
40 and 80
Step-by-step explanation:
got it on edgenuit y
Solve For X. Your answer must be simplified
124,567 is closer to 100,000 than 200,000
A lab is testing the amount of a certain active chemical compound in a particular drug that has been recently developed. The manufacturer claims that the average amount of the chemical is 95 mg. It is known that the standard deviation in the amount of the chemical is 5 mg. A random sample of 25 batches of the new drug is tested and found to have a sample mean concentration of 89.9 mg of the active chemical.
Calculate the 95% confidence interval for the mean amount of the active chemical in the drug. Give your answers to 2 decimal places. (suppose to be number less than and equal to mean less than and equal to another number)
Answer:
The 95% confidence interval is "87.94, 91.86".
Step-by-step explanation:
The given values are:
Sample batches,
n = 25
Sample mean concentration,
[tex]\bar{x}[/tex] = 89.9 mg
Amount of chemical,
σ = 5
α = 0.05
The critical value from Z table will be:
= [tex]Z(\frac{\alpha}{2} )[/tex]
= [tex]Z(\frac{0.05}{2} )[/tex]
= [tex]1.96[/tex]
Now,
The confidence interval will be:
= [tex]\bar{x} \pm Z(\frac{\alpha}{2} )\times \frac{\sigma}{\sqrt{n} }[/tex]
On substituting the values, we get
= [tex]89.9 \pm Z(\frac{0.05}{2})\times \frac{5}{\sqrt{25}}[/tex]
= [tex]89.9 \pm Z(\frac{0.05}{2})\times \frac{5}{5}[/tex]
= [tex]89.9 \pm1.96\times 1[/tex]
Lower limit will be:
= [tex]89.9 -1.96\times 1[/tex]
= [tex]87.94[/tex]
Upper limit will be:
= [tex]89.9 +1.96\times 1[/tex]
= [tex]91.86[/tex]
Milan has a total of 51 nickels and dimes worth $4.95. How many of each coin does she have?
Answer: 75 coins total, 51 nickels and 24 dimes.
Step-by-step explanation:
1
The area of a square window is
given by the expression
m’ - 16m+64. Which expression
represents the length of one side
of the window?
a)m - 8
b) m + 4
c)m - 4
d) m + 8
Answer:
Step-by-step explanation:
-8 ok!
PLEASE HELP!!!! The problem is in the photo below.
Answer:
A is correct.
Step-by-step explanation:
Here, the x would represent the gallons per minute. The minutes are unknown, so it's just a variable. It can't be B either, because the addition sign would mean that the pool is being filled instead of drained.
i need help <3 <3 <3 <3 <3 <3 <3 <3 <3 <3 <3\
Answer:
the cordnate for X is 2 the cordnate for Y is -2
Answer: the coordinate for X is 2 the coordinate for Y is -2.
Step-by-step explanation:
A customer at Lost Pastores placed an order for 3 burritos which was priced at x amount of dollars each. He also ordered a plate of corn tacos for $12.95. His total bill was $32.46.as
Answer:
3x +12.95 = 32.46
Step-by-step explanation:
3 burritos plus x + 12.95 = $32.46
Answer:
i don't know lololololol
Step-by-step explanation:
To the nearest 1000, there are 18,000 people at a festival . Write down the minimum possible number of people at the festival
Answer:
17500
Step-by-step explanation:
17499 rounds down
17500 rounds up
The number of people is an illustration of approximation and estimation
The minimum possible number of people at the festival is 17500
The approximated number of people is:
People = 18000
Because 18000 represents people, it means that the population is a whole number
The smallest whole number that can be approximated to 18000 is 17500
i.e.
People = 17500
Hence, the minimum possible number of people at the festival is 17500
Read more about approximation and estimation at:
https://brainly.com/question/24586443
What is the length of PR?
Answer: The length of PR is 7 units.
Step-by-step explanation:The length of PR is 7 units.
Answer:
A.7
Step-by-step explanation:
Which transformations could have occurred to map triangle ABC to triangle A”B”C”
i am a cube that has a lenght, width, and hight of 1 unit
Answer: The volume of the cube is 1.
Step-by-step explanation:
To find the volume for a cube, multiply all of the units for the sides together.
1 x 1 x 1 = 1A circle has a radius of 48 millimeters.
What is the length of the arc intercepted by a central angle that measures 3π4 radians?
Express the answer in terms of π .
Answer:
36pi mm
Step-by-step explanation:
A circle has 2pi radians so 3pi/4 is 3/8 of it. The circumference is 96 mm so the length of the arc is 36pi mm.
Answer:
36π
Step-by-step explanation:
translate this sentence into an equation
Answer:
22 + x = 43
Step-by-step explanation:
let x = vanessa's savings
22 + x = 43
Domain and range of graph need ASAP
Answer:
Domain: [tex]-6 \leq x \leq 3[/tex]
Range: [tex]-3 \leq x \leq 6[/tex]
Step-by-step explanation:
The domain is the set of real values which can be inputted into a function and produce a real output. In this case, the domain is the following: [tex]-6 \leq x \leq 3[/tex], because this is the set of real values for which the function will produce a real output.
The range is the set of real values which a function outputs when a value from the domain is entered into the function. This is the set of y-values that one can see on the graph, the possible y-values are in between (-3) and (6).
Change 2.32 kilograms to grams
Answer:
2,320 grams.
Step-by-step explanation:
Multiply by 1000 to get grams.
What conclusions can you draw about the two track teams from the data shown?
The floor of a storage unit is 6 ft long and 8 feet wide what is the distance between two opposite corners of the floor
Answer:
10 ft
Step-by-step explanation:
Use theorem pythagoras
Length = x
[tex] {x}^{2} = 8 {}^{2} + {6}^{2} \\ x = - 10 \\ x = 10[/tex]
the answer is 10 because length can't be in negative number
A sample of 26women is obtained, and their heights (in inches) and pulse rates (in beats per minute) are measured. The linear correlation coefficient is 0.208and the equation of the regression line is ModifyingAbove y with caret equals 17.8 plus 0.940 x,where x represents height. The mean of the 26heights is 63.5in and the mean of the 26pulse rates is 77.9beats per minute. Find the best predicted pulse rate of a woman who is 71in tall.
Answer:
The pulse rate is 84.54bpm
Step-by-step explanation:
Given
[tex]\^{} y = 17.8 + 0.940x[/tex]
Required
Find [tex]\^{}y[/tex] when [tex]x = 71[/tex]
Substitute 71 for x in: [tex]\^{} y = 17.8 + 0.940x[/tex]
[tex]\^{} y = 17.8 + 0.940 * 71[/tex]
[tex]\^{} y = 17.8 + 66.74[/tex]
[tex]\^{} y = 84.54[/tex]
The pulse rate is 84.54bpm
A car purchased for $20,000 depreciates annually at a rate of 8%. What will be the approximate value of the car in the 10th year?
Answer:
$4000
Step-by-step explanation:
20000x0.08=1600
1600x10=16000
20000-16000=4000
Answer:
$8687.76
Step-by-step explanation:
100-8=92
20,000*0.92=18400 (This is after one year)
20,000*0.92^10= 8687.7690 (After 10 years)
Marvin says," The probability of it raining tomorrow is 1/2 as it either will or it won't. Do you agree with Marvin? Explain your answer.
Answer:
It depends if the sky is cloudy or not.
Step-by-step explanation: We cant be sure on 100% percent it depends.
The circumference of the tree trunk is 7.85 feet. If the tree trunk is cut, what will be the diameter of the tree stump ? Use 3.14 for
Answer:
The diameter is 2.5ft
Step-by-step explanation:
Given
[tex]C = 7.85[/tex] --- Circumference
Required
Determine the diameter
The circumference of a circular surface is:
[tex]C =\pi d[/tex]
Substitute values for C and [tex]\pi[/tex]
[tex]7.85 = 3.14 * d[/tex]
[tex]d = \frac{7.85}{3.14}[/tex]
[tex]d = 2.5[/tex]
The diameter is 2.5ft
Math "The odd integers between 2 and 15".
O [2, 3, 5, 7, 9, 11, 13, 15)
O [3, 5, 7, 9, 11, 13)
O (3, 57, 9, 11, 13, 15)
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PLZ HELP I WILL GIVE BRAINLIEST I CANT FIGURE OUT THIS QUESTION I HAVE AUTISM
There are taller lines on the left side of the line.
This means it is skewed to the right.
help please!!!!!!!!!!!!!!!!!!
Answer:
It’s either D as the answer or A
Step-by-step explanation:
please help. will mark brainliest
Answer: AC = A'C'
Then you can use the hypotenuse leg theorem to say that the two triangles are similar
Step-by-step explanation:
Step-by-step explanation:
the measure of side AC = 53.33
18/30 = 32/x
18x = 960
x = 53.33