Answer:
16
Step-by-step explanation:
[tex](a+5)-\frac{b}{b-4}+\frac{2(b+3)}{a}\\\\a=2\\\\b=3\\\\(2+5)-\frac{3}{3-4}+\frac{2(3+3)}{2}\\\\=7-\frac{3}{-1}+3+3\\\\=7+3+6\\\\=16[/tex]
Ten percent of the items produced by a machine are defective. Suppose that twenty items are randomly chosen. Use this information to answer the following three questions. What is the probability that exactly 3 of the items are defective
Answer:
15%
Step-by-step explanation:
if 10% is to 20 then 15% is to 30
Solve the linear system using a table.
7a -b=-1
-4a - 2b = -2
A. (0,0)
B. (0,1)
C. (1,0)
D. (1,1)
Find x =
Please help I’ll give brainiest answer
Answer:
The Answer is 6
uhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Answer: so 5 out of 5 is like if it said 100 out of 100
soooo the answer is 100% ;)
Step-by-step explanation:
In a Create of 30 eggs
only 60 % is good how many
are bad?
Answer:
In my point of view 40% are bad
Which statements are ture about 5/6 and 7/10 ?Check all that apply
Answer:
is that all?
Step-by-step explanation:
isnt there more to the problem?
HELPPPPPPP!!!!!!!!!!!!
Answer:
C
Step-by-step explanation:
As you saw in my comments, I explained it.
Thank you for letting me help!
Cheers!
- Kay :)
Jaxon is deciding between two landscaping companies for his place of business. Company A charges $45 per hour and a $150 equipment fee. Company B charges $35 per hour and a $200 equipment fee. Let
A
A represent the amount Company A would charge for
t
t hours of landscaping, and let
B
B represent the amount Company B would charge for
t
t hours of landscaping. Write an equation for each situation, in terms of
t
,
t, and determine the interval of hours,
t
,
t, for which Company A is cheaper than Company B.
Answer:
A
Step-by-step explanation:
It charges cheapeer
What is the volume of a cylinder with a radius of 2 cm and a height of 8 cm?
Answer:
V = 100.531 cm³
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
Volume of a Cylinder: V = πr²hStep-by-step explanation:
Step 1: Define Variables
r = 2 cm
h = 8 cm
Step 2: Find Volume
Substitute [Volume]: V = π(2 cm)²(8 cm)Exponents: V = π(4 cm²)(8 cm)Multiply: V = π(32 cm³)Multiply: V = 100.531 cm³what is -5x + 3y= 12 in slope intercept form?
Answer:
y = (5/3)x + 4
Step-by-step explanation:
-5x + 3y = 12 (What you start with)
3y = 12 + 5x (Adding 5x to both sides)
y = (5/3)x + 4 (Dividing the equation by 3)
Select all ordered pairs that satisfy the function y=4x+3.
I suppose that you should have given some pairs to choose from.
Anyway, I can tell you how to do it. Given a pair [tex](a,b)[/tex], you have to substitute [tex]a[/tex] and [tex]b[/tex] to [tex]x[/tex] and [tex]y[/tex] respectively, and see if you get something true.
For example, the pair [tex](1,7)[/tex] satisfies the function, because the substitution yields
[tex]7=4\cdot 1+3[/tex]
which is true. On the other hand, the pair [tex](19,3)[/tex] doesn't satisfy the function, because
[tex]3=4\cdot 19+3[/tex]
is clearly false.
Please answer I will give branliest
Answer:
Step-by-step explanation:
assuming that weekends are only sat and sunday
24 students
or
if were assuming that friday is included
30 students
hope this helps <3
Answer:
24 students prefer weekend days C:
Step-by-step explanation:
HELP QUICK! 20 POINTS PLEASE GET IT CORRECT
Eber ran 3 miles. He stopped to take a break every {3}{4) mile.How many times did Eber stop, including his final stop at the end of the run?
Answer:
4 times
Step-by-step explanation:
The total model is 3 miles, divided by 3/4 equals the multiplication problem 3/1 times 3/4 but use the reciprocal of 3/4 which is 4/3 so it would be 3/1 times 4/3 which is 12/3 which is equivalent to 4. :)
There are 4 times did Eber stop.
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
Eber ran 3 miles.
And, He stopped to take a break every 3/4 mile.
Now,
Let number of times stop = x
So, We can formulate;
⇒ 3/4x = 3
⇒ x = 3 × 4 / 3
⇒ x = 12/3
⇒ x = 4
Thus, There are 4 times did Eber stop.
Learn more about the mathematical expression visit:
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In a study, subjects are randomly assigned to one of three groups: control, experimental A, or experimental B. After treatment, the mean scores for the three groups are compared. The appropriate statistical test for comparing these means is:
Answer:
Analysis of variance
Step-by-step explanation:
The appropriate statistical tool for this is the analysis of variance. The analysis of variance, also known as the ANOVA, is a statistical method which has the ability to separate data from observed variance into various components which is then use for more tests.
The anova gives an analysis of the differences that are in the group means of a sample.
The appropriate statistical test for comparing these means is Analysis of variance.
ANOVA stand for Analysis of variance. It is a statistical models and its associated estimation procedures are used to analyze the differences among means.
It simply provides a statistical test for two or more population to check if the means are equal or not, and therefore generalizes the t-test beyond two means.
Hence, the appropriate statistical test for comparing these means is Analysis of variance.
To know more visit:
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A culture started with 6,000 bacteria. After hours, it grew to 7,200 bacteria. Predict how many bacteria will be present after 19 hours. Round your answer to the nearest whole number
Answer:
that would be c i had that ques 5 mns ago
Step-by-step explanation:
Answer:
It’s 3600
Step-by-step explanation:
Demarcus' workout playlist consists of classic rock songs and rap songs.
His playlist contains a total of 47 songs,
Which of the following statements represent the number of classic rock
and rap songs on Demarcus' playlist? Select all that apply.
x+y = 47
24 and 24
43 and 4
x = y + 47
y=-x+ 47
13 and 34
Tired asl I need some help, thanks.
Answer:
C
Step-by-step explanation:
y=5-2x
3x-y=15
Substitute
3x-(5-2x)=15
Question 24 of 25
What is the measure of R?
find the unit rate round to the nearest hundredth calculator $170 for 14ft2
Answer:
don't expect people to help when you comment bs under their questions for points, mad weird
Wall-mart had a laptop for $500. Best Buy was selling the same laptop for 15% more. What is price of the laptop at Best Buy?
Answer:
575
Step-by-step explanation:
15% of 500 = 75
500 + 75 = 575
Answer:
$425
Step-by-step explanation:
500*0.15=75
500-75=524
Need help with these following questions
Answer:
there are 13 of them brother from another mother
In a particular triathlon the athletes cover 1/24 of the total distance by
swimming, 1/3 of it by running, and the rest by bike. What is the ratio of
the distance covered by bike to the distance covered by running?
Answer:
15/8
Step-by-step explanation:
Let "d" be the total distance, that is, the distance for swimming (s), running (r) and going by bike (b).
d = s + r + b [1]
1/24 of the total distance is covered by swimming.
s = 1/24 d [2]
1/3 of the distance is covered by running.
r = 1/3 d [3]
If we replace [2] and [3] in [1], we get
d = 1/24 d + 1/3 d + b
b = d - 1/24 d - 1/3 d
b = 24/24 d - 1/24 d - 8/24 d
b = 15/24 d = 5/8 d
The ratio of the distance covered by bike to the distance covered by running is:
b/r = (5/8 d)/(1/3 d) = 15/8
If three empanadas and two drinks cost $9, and four empanadas and one drink costs $9.50, how much does a drink cost?
Answer:
A drink cost 1.50
Reasoning:
3×2=6
6+1.50=7.50
7.50+1.50=9
4×2=8
8+1.50=9.50
Determine the value of x and y
where is the question , without question how can we find the Values
what is parallel to y=3x+1
you can only use the numbers 3,-2,1,4,-1,0,2,5 and put it in y= x +
Answer:
y=3x+1
Step-by-step explanation:
A parallel line has the same slope as the other line.
y=mx+b, m is the slope
Thus in y=3x+1, m =3
y = 3x + b
plug in points (1, 4) to determine b
4 = 3(1) + b
4 = 3 + b
subtract 3 on both sides
4 - 3 = b
b = 1
y = 3x + 1
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Awww please just determine the function equation, y intercept and slope.
Answer:
y = 3x + 45 is the function equation of y intercept and slope.
Marshall has $0.34 in dimes and pennies. He has 7 coins altogether. How many coins of each kind does he have?
Dimes are 0.10 each
Pennies are 0.01 each
You need 4 pennies to get the 0.04
Then you would have 3 dimes .
3 x 0.10 = 0.30
4 x 0.01 = 0.04
0.30 + 0.04 = 0.34
HELP PLEASE EXPERTS! the question is in the picture
Answer:
B) 6
Step-by-step explanation:÷
The area of a triangle = 1/2 b* h or [tex]\frac{b*h}{2}[/tex]
Line AB = 4
Line AC = 3
Line BC = x
b = 3
since it is at a right angle,
h = 4
[tex]\frac{3*4}{2}[/tex] = 6
The figure is made up of a square and a rectangle. Find the area of the shaded region.
first we do
square is length 6 so base =6
10-6=4
the rectangle is 2 by 4
base=4
square is 6 by 6
rectangle is 4 by 2
split the triangles up
area of triangle=1/2base times height
rectangle triangle base=4
height=2, area=1/2 times 2 times 4=4
square triangle
flip 90 degrees clockwise so we have base=2
height=6
area=1/2 times 2 times 6=6
add
4+6=10
total area=10m^2