Answer:
6x + 3
General Formulas and Concepts:
Pre-Algebra
Distributive Property
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
3(2x + 1)
Step 2: Expand
Distribute 3: 3(2x) + 3(1)Multiply: 6x + 3Pls help I’m failing math I’ll brainlest for the right answer grades close today
answer: i think that it would increase by about 20 percent
i am not sure, if i m wrong then i am very sorry!
Step-by-step explanation:
Answer:
The change is a decrease by ~13.6%
Step-by-step explanation:
Formula:
[First Value – Second Value] ÷ [(First Value + Second Value) ÷ 2] × 100
48 - 84 ÷ 48 + 84 ÷ 2 × 100
-36 ÷ 132 ÷ 2 × 100
-0.2727272727272727 ÷ 2 × 100
-0.1363636363636364 × 100
-13.63636363636364
Or ~ 13.6
The change is a decrease by ~13.6%
What is the answer to 34/6?
Answer:
I don't Know if this is division or fraction
Step-by-step explanation:
But I divided
and my answer was 5r4
please help 30 points!
Answer:
its A=4,20, B=8,40
Step-by-step explanation:
you are supposed to do the Y first then the X
Answer:
B. every 4 miles you run it will have been 20 min
C. put 4 over 20 like a fraction then next to that put a 1 over x then cross multiply and divide giving you the answer wich is " for every mile you run you spend 5 min
D. 1/5 for every mile you spend 5 minutes
E. same thing as above
Step-by-step explanation:
what is different of the four shapes?
Answer:
It has only 1 pair of parallel sides.
Step-by-step explanation:
Answer:
It has only 1 pair of parallel sides
Step-by-step explanation:
Perry has already taken 8 pages of notes on his own, and he will take 1 page during each
hour of class. After attending 33 hours of class, how many total pages of notes will Perry
have in his notebook?
Answer:
41 pages of notes
Step-by-step explanation:
Since he took 1 page of notes for each hour, and attended 33 hours of class, this will add 33 pages of notes to his notebook.
To find the total, add 8 to this, because he already had 8 pages on his own.
33 + 8
= 41
So, he will have 41 pages of notes in his notebook
Answer:
He will have 41 pages of notes in his notebook.
Step-by-step explanation:
(33*1)+8
30*1=30
3*1=3
30+3=33
33+8
41
4² - 3 + 7
pemdas please
Answer:
20
Step-by-step explanation:
4^2= 16
16+7=23
23-3=20
Answer: 6
Step-by-step explanation:
4^2 - 3 +7
16 - 3 +7
16 - 10
6
Determine if the pair of lines are parallel, perpendicular, or intersecting.
y=2/3x +4
y=2/3x -1
Answer:
They are parallel
Step-by-step explanation:
They both start with y=2/3x so you know the slope is the same. The +4 and -1 are just the intercepts
You owe $300 on your credit card. For every month that you fail to make a payment, your balance increases by 1%. Find a formula for the balance B owed after t months with no payment.
Answer:
[tex]B(t) = 300(1.01)^{t}[/tex]
Step-by-step explanation:
The balance owed after t months can be given by an exponential function in the following format:
[tex]B(t) = B(0)(1+r)^{t}[/tex]
In which B(0) is the initial balance owed and r is the growth rate, as a decimal.
You owe $300 on your credit card. For every month that you fail to make a payment, your balance increases by 1%.
This means, respectively, that [tex]B(0) = 300, r = 0.01[/tex]
So
[tex]B(t) = 300(1+0.01)^{t}[/tex]
[tex]B(t) = 300(1.01)^{t}[/tex]
can someone please prove that the expression (x-y)+(y-z)+(z-x) is equivalent to 0
Answer:
see below
Step-by-step explanation:
[tex](x-y)+(y-z)+(z-x)\\\\=x-y+y-z+z-x\\\\=(x-x)+(-y+y)+(-z+z)\\\\=0+0+0\\\\=0[/tex]
If 60 people were surveyed, how many of them would chose an SUV as their preferred vehicle?
60
57
36
39
Answer:
39
Step-by-step explanation:
Which expression represents the fourth term in the binomial expansion of (e + 2f)10?
10C3(e7)(2f)3
10C3(e7)(f)3
10C4(e6)(2f)4
10C4(e6)(f)4
Answer:
first one
Step-by-step explanation:
Answer:
a on edge
Step-by-step explanation:
Spencer has a bank account with a balance of $75.00. Spencer owes $30.00 to her credit card and she owes $50.00 for a LCD TV. What would Spencer’s bank balance be, if both debits were paid?
Answer:
-5.00 dollars
Step-by-step explanation:
Answer:
-5
Step-by-step explanation:
75-50-30=-5
O MODULE 1: EXPRESSIONS AND EQUATIONS
Distributive property: Integer coefficients
Use the distributive property to remove the parentheses.
(-6+x+3y)(-6)
DO
X Х
?
Answer:
First, multiply the 5 by each of the terms inside the parentheses. Next, simplify each part of the expression and then add. The answer is 5(2+3)=25. The distributive property also works if there is subtraction inside the parentheses
Step-by-step explanation:
1a
the length of notes na inante are till wudhof
1
Innly
llon
117 and Itank
Answer:
can you please describe this more and what it is then i will answer it in the comments
Step-by-step explanation:
The range of a function
y =2/3x + 1 is {3, 5, 17/3, 23/3
Identify the domain.
{1, 8, 15, 12)
{2, 5, 8, 12)
{3, 6, 7, 10)
{10, 16, 18, 22)
Answer:
{3,6,7,10}
Step-by-step explanation:
2/3(3)+1=3
2/3(6)+1=5
2/3(7)+1=17/3
2/3(10)+1=23/3
Describe all the x-values at a distance of 25 or less from the number 12. Enter your answer in interval notation.
Answer: [-13, 37]
======================================================
Explanation:
The smallest x value possible is 12-25 = -13
The largest x value possible is 12+25 = 37
It might help to draw out a number line to see this.
x is between -13 and 37, including both endpoints. We can write [tex]-13 \le x \le 37[/tex]
This converts to the interval notation [-13, 37] which is the answer.
The use of square brackets is to indicate "include this endpoint".
can someone help me i will mark you has brainlist
Answer:
A
Step-by-step explanation:
91 points need help now . Emanuel put 12 marbles on one pan
of a scale. On the other pan, he put
4 marbles, then he added 8 more
marbles to that side. Each of the-
marbles weighs 1 ound. Is the scale
balanced? Explain.
Answer: I believe the scale is balanced.
Step-by-step explanation: I stated that because since the other side of the scale contained 12 marbles that were 1 pound each that would be 12 pounds and then since 4+8=12 12 pounds of marbles were also put on the other side.
Solve the equation X-4/2=10
X=24
X=22
X=29
X=39
The length of a rectangle is 3 yd longer than its width.
If the perimeter of the rectangle is 66 yd, find its length and width.
length = 3 + w (width)
perimeter: 66
2(3 + w + w) = 66
6 + 2w + 2w = 66
6 + 4w = 66
4w = 60
w = 15
length = 15 + 3 = 18
final answer:
length = 15 yards
width = 18 yards
the product of two number is 42.they are two consecutive numbers. the two numbers are both less than 10. what is the answer?
Answer:
6 and 7
Step-by-step explanation:
You first want to find the factors of 42. They are:
1,2,3,6,7,14,21,42
The factor pairs are:
1 & 422&213&146&7The only factor pair with consecutive numbers is 6 and 7. They are both less than 10 as well, so 6 and 7 works.
Henry is planning to create two rectangular gardens.
Part A
Henry has 96 feet of fencing to enclose the first rectangular garden. The garden will be x feet wide.
Which function, f(x), can Henry use to determine the area, in square feet, of the first garden?
a f(x) = 48x
f(x) = 48 - x
f(x) = 48 – x²
f(x) = 48x - x2
Answer:
Step-by-step explanation:
THANKS 4 POINTS!!!!!!!
2 1/3 - 1 2/5 please help
Answer:
14/15
Step-by-step explanation:
2 1/3 - 1 2/5
1 4/3 - 1 2/5
0+14/15
final answer is 14/15
20. Jorge conducted a survey by asking 120 students whether they use a pencil to take notes. Of the students surveyed, 90 responded favorably. Which margin of error matches each confidence level for this situation?
1. 90% =
2. 99% =
3. 95%=
options- 0.102, 0.338, 0.216, 0.077, 0.256, 0.065
Answer:
Margin of error for 90% C.I: 0.065
Margin of error for 99% C.I: 0.091
Margin of error for 95% C.I: 0.077
Step-by-step explanation:
In this question, for each student, there are only two possible outcomes. Either they use a pencil to take notes, or they do not. Students are independent of each other. So we use the binomial probability distribution to solve this question.
Binomial confidence interval:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
The margin of error is:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
For this problem, we have that:
120 students, so [tex]n = 120[/tex]
90 responded favorably, so [tex]p = \frac{90}{120} = 0.75[/tex]
Margin of error for 90% CI:
Here [tex]\alpha = 0.1[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.1}{2} = 0.95[/tex], so [tex]Z = 1.645[/tex].
The margin of error is:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}} = 1.645\sqrt{\frac{0.75*0.25}{120} = 0.065[/tex]
Margin of error for 99% CI:
Here [tex]\alpha = 0.01[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.01}{2} = 0.995[/tex], so [tex]Z = 2.325[/tex].
The margin of error is:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}} = 2.325\sqrt{\frac{0.75*0.25}{120} = 0.091[/tex]
Margin of error for 95% CI:
Here [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].
The margin of error is:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}} = 1.96\sqrt{\frac{0.75*0.25}{120} = 0.077[/tex]
Answer: Margin of error for 99% CI: z=2.575 . input that into the equation and it give you .1017
Step-by-step explanation:
HELLPPPPPPPPPPP WILL GIVE BRAINLIEST YO CORRECT ANSWERRR
Answer: AS you can see Triangel A' B' C' has been dilated. You can see this is because it is still a tringle but its been made smaller. it has also has been reflected accross the y axis and then reflected accros the x asis
Step-by-step explanation:
Help me please I hate Math
Answer:
112°
Step-by-step explanation:
Each of the interior angles that measure 34° and mentioned there are two of them will add up to 68°. A triangle must equal 180°. Subtract 68 from 180 to get 112° as your final answer.
Answer:
112
Step-by-step explanation:
180-(34+34)
180-68
112
4 and 9/10 minus 2 and 2/5 = (in fractions)
5 and 1/2 minus 2 and 2/5 = (answer in fractions)
5 and 1/2 plus 2 and 3/5 =
4 and 5/6 minus 2 and 1/4 =
Answer:
3 mark me brainlest
Step-by-step explanation:
Answer:
It is the 3rd one I think
Step-by-step explanation:
Hope this helps have an amazing day!
It is common to leave a 10% tip when the service was just mediocre. At one such occasion, a patron left a 10% tip on a $23.45 bill.
What is the tip amount?
What is the total bill?
Answer: $2.3
Step-by-step explanation: well you need to find 10% of 23.45, so multiply .1 by 23.45.
[tex]23.45 \times 10\%[/tex]
[tex] = 23.45 \times 0.1[/tex]
[tex] = 2.345[/tex]
[tex] = 2.35[/tex]Answer:$2.35 is the tip amount
What is the total bill?Solution:[tex]23.45 + 2.345[/tex]
[tex] = 25.795[/tex]
[tex] = 25.80[/tex]
Answer:$25.80 is the total bill
#CarryOnLearning
#AnswerForTrees
#BrainlyBookSmart
Select the number that would make this statement true: 361.2 ÷ ________ = 036.12 (3 points)
1,000
100
10
1
Answer: c
Step-by-step explanation:
You can take the blank as x
so 361.2 / x = 36.12
multiply by x
361.2 = 36.12x
divide
x = 10
thank me and mark me as brainlies
Answer:
10
Step-by-step explanation:
54 is 45% of _______________. fill in the blank
Answer:
Your answer is 120% of 45
Step-by-step explanation: