Answer:
30%
Step-by-step explanation:
Increase in cost = 65 - 50 = 15
Percentage increase
[tex] = \frac{15 \times 100}{50} \\ \\ = 15 \times 2 \\ \\ = 30\%[/tex]
Multiply the following polynomials.
Use either the FOIL Method or the Box Method.
(3x + 2) (5x - 9)
1) Solve the problem and provide the answer.
2) What method did you use and how did you use it to solve the problem (Your steps to solve).
Answer:
Step-by-step explanation:
1. (3x + 2)(5x - 9)
15x^2 - 27x + 10x - 18
15x^2 - 17x - 18
2. I used the F.O.I.L. method.
HELP WITH MATH PLSSSSSSSSSSSSS
Answer:
Undefined
Step-by-step explanation:
Whenever there's a perfectly straight vertical line, its classifies as undefined
A bookstore charges a standard rate for paperback or hardback books. The cost of a paperback book is 4 dollars less than the cost of a hardback book. Recently, one day of sales totaled $1065.10. That day the bookstore sold 51 paperback books and 47 hardback books. Write a system representing this situation. Use the graph to estimate the solution of the system. What does the solution mean in this situation? How much does each type of book cost? Use substitution to verify your solution.
Answer: for one hard cover book it is about $17 and paperback is $13
Step-by-step explanation:
The perimeter of a rectangle is forty inches. The length is
two inches more than three times the width. Find the dimensions of
the rectangle.
Let Width (inches) = X
Let Length (inches) = 3x + 2
40 = (x) + (3x + 2) + (x) + (3x +2)
40 = 8x + 4
-4 -4
36 = 8x
/8 /8
4.5 = x (width)
Length = 3x + 2
length = 3(4.5) + 2
length = 13.5 + 2
length = 15.5 inches
CHECK
40 = 15.5 + 4.5 + 15.5 + 4.5
40 = 20 + 20
40 = 40
What is the mean absolute deviation of the set of numbers {3, 7, 5, 6, 4}?
Answer:
5
Step-by-step explanation:
mean = sum of all values÷number of observation
= 3+7+5+6+4 ÷ 5
= 5
The sixth-grade class is competing in the school field day. There are 32 girls and 56 boys who want to participate. Each team must have the same number of girls and boys. What is the greatest number of teams that can be formed? How many boys and how many girls will be on each team?
Answer:
8 teams each team will have 4 girls and 4 boys
Step-by-step explanation:
We use GCD to solve this
the GCD of 32 and 24 = 8
8 is the greatest number of teams.
each team must have equal number of boys and girls so divided by two
8/2 = 4
4 girls and 4 boys
I have attached how to do GCD.
If you need any clarification or more explanation pls do mention at the comment section
Hope this helps and if it does pls mark as brainliest answer thx
9. Stephanie had some candy to give to her four children. She first
took twelve pieces for herself and then evenly divided the rest among
her children. Each child received six pieces. With how many pieces did
she start?
Answer:
36
Step-by-step explanation:
Create an equation : 12 for how many pieces Stephanie took, 4 for how many children she has and 6 for how many pieces each child got:
12+ (6*4) = x
Solve:
12+24 = 36
Answer: 36 pieces
Step-by-step explanation:
We know she took 12 pieces and her four children each received 6 pieces.
12 + 4 (6) = p
12 + 24 = 36
p = 36
She started with 36 pieces.
Madeline has 19 coins in her backpack. Some are nickels and some are quarters. The total value of the coins is $2.15. How many nickels and quarters does she have?
A bicyclist rides 1/2 mile in 1/22 hour. Write this rate as a unit rate
Tickets to a school dance cost $5. Ninety tickets have already been sold. How many more tickets x must be sold to earn at least $700? Write your answer as an inequality.
Step-by-step explanation:
5x90=450
700-450=250
250/5=50
50 more tickets.
i don't know if that's in an inequality form or not. but that's how many tickets
f(1)=2
f(n+1) = f(n)+4
What is f(10)?
9514 1404 393
Answer:
38
Step-by-step explanation:
The recursion relation describes an arithmetic sequence with a first term of 2 and a common difference of 4. The explicit formula for the n-th term of the sequence is ...
f(n) = f(1) +d(n -1) . . . . . for first term f(1) and difference d
f(n) = 2 +4(n -1) = 4n -2
Then the 10th term is ...
f(10) = 4(10) -2
f(10) = 38
and fast plzz
will .ark the brainliest
Answer:
[tex]\sqrt[6]{2}[/tex]
Step-by-step explanation:
[tex]\sqrt[4]{\sqrt[3]{2^2}} =((2^2)^\frac{1}{3})^\frac{1}{4}\\\\=(2^2)^\frac{1}{12}\\\\=2^\frac{2}{12}\\\\=2^\frac{1}{6}\\\\=\sqrt[6]{2}[/tex]
What is the slope of the line graph below (-8, 0) and (0, -4)?
what is the slope of the line below?
give an exact number. plz help !
Which value of x makes the equation true?
3.1 – 6
3
71 - 3
6
A.
-11
B.
-9
C.
-3
D. 3
Answer:
B. -9
Step-by-step explanation:
PLATO correct
Use the figure to solve for the missing angles
m<1:51, m<2:39, m<3:90
The bowling alley charges a set fee for shoe rental and charges per game bowled. The total
cost of bowling can be modeled by c(b) = 5.75b + 4.25 Which statements about the function
are true?
I.
The cost for each game of bowling is $5.75.
II.
The shoes cost $5.75 to rent.
III.
The number of games bowled is represented by b.
1.
I and II only
2.
I and III only
3.
II and III only
4.
I, II and III
Submit Answer
Answer: (2.)
1 and 111 only
Step-by-step explanation:
help with this bounds question please
Answer: 6.68km/litre
Step-by-step explanation:
Distance(d) = 187km ( to 3 significant figures)
Petrol(p) = 28litres ( to 2 significant figures)
A number, x, rounded to 1 significant figure is 200
Write down the error interval for x
Calculating the lower and upper bound for both 'd' and 'p'
Upper bound 'd' = 187.5km
Lower bound 'd' = 186.5km
Upper bound 'p' = 28.5km
Lower bound 'p' = 27.5km
Therefore,
Petrol consumption (C) = d/p
Upper C = 187.5 / 28.5 = 6.57894
Lower C = 186.5 / 27.5 = 6.781818
Accuracy answer for C = (6.57894 + 6.781818) / 2 = 6.680379
= 6.68km/ litre ( to 3 significant figures)
To achieve a reasonable level of accuracy, the upper and lower bounds of P and D was used to calculate C, which was then averaged.
Using 3 significant figures ensure that we capture the C better, instead of early rounding.
Line p intersects line a and b. a b. By which theorem is a1 ≈ a8
PLEASE HELP!!
Answer:
option a
Step-by-step explanation:
alternate exterior angle theorem
For the current reaction, 2NO2 ↔ N2O4, we have:
Kc = [tex]\frac{[N_{2} O_{4}]}{[NO_{2}]^{2} }[/tex]
Concentration of NO2 = 11.95
Concebtration of N2O4 = 6.05
Based on the current concentrations of NO2 and N2O4, what is Kc?
[tex]\displaystyle K_c \approx 0.0424[/tex]
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Equilibrium
Equilibrium Constant KConcentrations - Denoted in [Brackets]Step-by-step explanation:Step 1: Define
[RxN] 2NO₂ ⇆ N₂O₄
[Equilibrium Rate Law] [tex]\displaystyle K_c = \frac{[N_2O_4]}{[NO_2]^2}[/tex]
NO₂ = 11.95 M
N₂O₄ = 6.05 M
Step 2: Find K
Substitute [ERL]: [tex]\displaystyle K_c = \frac{[6.05]}{[11.95]^2}[/tex]Exponents: [tex]\displaystyle K_c = \frac{[6.05]}{[142.803]}[/tex]Divide: [tex]\displaystyle K_c = 0.042366[/tex]Round (Sig Figs): [tex]\displaystyle K_c \approx 0.0424[/tex]This value of K tells us that the reactants are favored in the equilibrium reaction (K < 0.1).
A 16-ounce bag of cereal costs about $2.88. What is the unit rade of the cereal?
Answer:
18 cents per ounce
Step-by-step explanation:
The first step is to identify the unit. In this case, you are told you have 16-ounces. Therefore, your unit is an ounce.
To find the price of one ounce, just divide your price of $2.88 by 16.
Unit rate = $2.88 / 16 = 0.18 or 18 cents per ounce.
Write the ratio of ears to toes on an average person? (in simplest form)
type your answering using one of the following... (NO SPACES)
to
Answer:
1:5
Step-by-step explanation:
DivideByTwo
What is the equation in standard form of a line that passes through the point (-2, 5) and has a slope of -0.3?
a) 3x + 10y = 44
b) 3x + 10y = -50
c) 3x + 10y = -44
d) 3x +10y = 50
Answer:
a it's a :)
Step-by-step explanation:
sum of 2x and 3x in algebraic expression
Name the remote interior angles for each exterior angle
How are exterior angles 6 and 8 related?
I WILL MARK THE BRAINIEST
Answer:
b. 2,3,&7
c. they are vertically opposite angles
hope this helps
Write the sum, and then write an equivalent expression by collecting like terms and removing parentheses whenever possible.
d. The opposite of - 10t and t - 10t
Answer:
The sum is [tex]t[/tex].
Step-by-step explanation:
Consider the provided information.
The given expression are - 10t and t - 10t
We need to find the sum of the opposite of -10 t and t - 10t.
The opposite of -10 t is 10 t.
[tex]10t+(t-10t)[/tex]
Remove the parenthesis.
[tex]10t+t-10t[/tex]
Simplify the number
[tex]10t-10t+t[/tex]
Use Additive inverse.
[tex]t[/tex]
Hence, the sum is [tex]t[/tex].
The population of a city increases by 2.7% per year. If this year's population is
197,000, what will next year's population be?
im not sure sorry
also make you 2021 be better than your 2020 and stay safe
what are the ordered pairs
Answer:
A and B
Step-by-step explanation:
helpeleleeplpl3pel!!!!!!!!!!!!!!!!!!!!!!1
Answer:
im guessing D sorry if wrong
Answer: D
Step-by-step explanation:
Since the scale factor is 4:1, you need to divide each side by 4.
10 / 4 = 2.5
12 / 4 = 3
Also you can clearly rule out answer choices b and c because they just don’t make since since the object is smaller than the scale drawing.
Hello
If someone can help me find X that’s the only problem I’m having with this math equation please and thankss!
Answer:
X=5
Exlanation
