Answer:
20% increase
Step-by-step explanation:
We want to compute the percentage increase
Percent increase in price is expressed as
=(Change in price)/old price *100
=356.4-297/297*100
=59.4/297*100
=0.2*100
=20%
what is the slope of the line
PLSSS HELPPP
If 8 boxes of crayons cost $20 , what would 6 boxes cost ?
Answer:
$15
Step-by-step explanation:
To figure thsi out, you do 20 divided by 8, which gives you 2.5 ($2.50.)
Next you do 2.50 x 6 which gives you 15 ($15.)
The answer is $15.
(The upcoming and this sentence is pre-written and copy and pasted in every brainly question or comment I write or answer.) If this answer helped you please consider giving it brainliest. If my answer was wrong and you got marked wrong for it, I deeply apologize and hope you will forgive me, since everyone makes mistakes sometimes. If you need me to elaborate on my answer or give further explanation on it, please ask and I will do so. If you need to explain your reasoning on your work feel free to use my words- word for word- without crediting me, the answer was made for you anyways! Hope yall learn from my answer and it helps you in the future with assignments, quizzes, test’s, and more!
- •Trix•
( Yes I know my - •Trix• thingy is not my user but it’s what I would change it to if I could but I can't, please address me as Trix while commenting or talking to me here.)
Tanya is at a fair and has $30 to spend on x number of rides and y number of games. Each ride is $2 and each game is $3. The equation 2x+3y=30 represents this scenario. If Tanya does not play any games, how many rides can she go on?
Answer:
15 rides
Step-by-step explanation:
From the above Question we know that if Tanya goes on a ride, the Algebraic expression = 2x
Where x = number of rides
If Tanya does not play any games, how many rides can she go on?
Note that: Tanya has $30 to spend
This question is solved:
2x = $30
x = $30/2
x = 15 rides
Hence, if Tanya does not play any games she can go on 15 rides
33% of what number Is 1.45?
ANSWER : Approximately 4.39
WHY? : You must round up the answer "x=4.3939". If thought of like .33X=1.45, then you divide 1.45 by .33
Pls help with this and quick I NEED HELP ASAP
Answer:
[tex]D. Real,\ Irrational[/tex]
Step-by-step explanation:
[tex]7\pi \\As\ we\ know\ that\ 7\pi \ is\ can\ be\ factorized\ into\ 7*\pi .\\As\ we\ know\ that\ \pi \ is\ a\ transcendental,\ and\ is\ non-terminating\ non-recurring,\ it\ is\ an\ irrational\ number.\\7\ is\ a\ rational\ number\ as\ it\ is\ terminating\ and\ can\ be\ represented\\ as\ \frac{7}{1} .i.e\ in\ a\ ratio.\\Now,\\As\ The\ product\ of\ a\ rational\ number\ and\ an\ irrational\ number\ is\ irrational.\\The\ product\ of\ 7\ and\ \pi \ which\ is\ 7\pi \ is\ also\ irrational.\\Hence,\\[/tex][tex]7\pi\ is\ irrational.\\As\ we\ know\ that\ all\ rationals\ and\ irrationals\ fall\ under\ the\ category\\ of\ Real\ numbers. All\ irrationals\ are\ real\ numbers\ too.\\Hence,\\7\pi \ which\ is\ an\ irrational [As\ Proven]\ is\ also\ a\ real\ number.\\Hence,\\7\pi \ is\ real\ and\ irrational.[/tex]
A) 9
B) 11
C) 34
D) 28
Answer:
I think the answer is 11 because 2x + 3x=5 and 1 + 10=11
whats 1+1+8-3+5-8+4-8+3-5+8-7-7+5+4+3+9+8+2+14+78+
Answer:
115
Step-by-step explanation:
Hope this helps! Brainliest is appreciated!! Happy Holidays!!!
Answer:
The answer of this question is 123
If contact lenses cost 80$ how much will they cost if they are with 10% off?
10% of 80 = 8
80 - 8 = 72
if they are 10% off, the contact lenses will cost $72
If 20miles is 1/2 inches how and there is 3.125 inches how many miles
Answer:
3.125 inches would result in 122 miles.
Step-by-step explanation:
We can figure this out using proportions.
[tex] \frac{20 \: miles}{ \frac{1}{2} \: inches} = \frac{x}{3.125 \: inches} \\ \\ \frac{ \frac{1}{2}x }{ \frac{1}{2} } = \frac{62.5}{ \frac{1}{2} } \\ \\ x = 122[/tex]
122 miles would be the answer.
Answer:
125 miles
Step-by-step explanation:
[tex]\frac{20}{\frac{1}{2}}=\frac{x}{3.125}\\x=40 \times 3.125=125 \\x=125~miles[/tex]
There are 35 people who have
entered the sled race. If 60% of
them are over the age of 15, how
many participants are over 15?
(show your work)
Answer:
21
Step-by-step explanation:
35% × 60 =
(35 ÷ 100) × 60 =
(35 × 60) ÷ 100 =
2,100 ÷ 100 =
21
EASY 7TH GRADE MATH QUESTION FIRST PERSON MARKED BRAINLIEST!
Answer:
30.
Step-by-step explanation:
A juggler tosses a ball into the air. The balls height, h, and the t seconds can be represented by the equation h(t)=16t^2+40t+4. Suppose the juggler missed and the ball hit the ground. Find the maximum height of the ball and the time it took the ball to reach the ground. Round all answers to the nearest hundredth
Answer:
h= -20
t = -0.104 and -2.39s
Step-by-step explanation:
A juggler tosses a ball into the air. The balls height, h, and the t seconds can be represented by the equation h(t)=16t^2+40t+4. Suppose the juggler missed and the ball hit the ground. Find the maximum height of the ball and the time it took the ball to reach the ground. Round all answers to the nearest hundredth
The velocity of the body at its maximum height is zero
V= dh/dt
dh/dt = 32t + 40
0 = 32t+40
-32t = 40
t = 40/-32
t = -1.25s
Substitute t = -1.25 into the expression
h(t)=16t^2+40t+4.
h(-1.25)=16(-1.25)^2+40(-1.25)t+4.
h = 16(1.5625)-50+5
h = 25-45
h =-20
Hence the maximums height is -20m
The ball will reach the ground at h = 0
Substitute
h(t)=16t^2+40t+4.
0 = 16t^2+40t+4
Divide through by 4
0 = 4t²+10t+1
Factorize
-10±√10²-4(4)/2(4)
t = -10±√100-16/8
t = -10±√84/8
t =-10+9.17/8
t = -0.83/8 and -19.17/8
t = -0.104 and -2.39s
Minnie is making tea. She knows that her tea tastes best if she lets her tea bag sit in the hot water for exactly fifteen minutes. However, depending how hot the water is, she may have to leave her tea bag in the water for 2 minutes more or less than usual. Write and solve an absolute value equation to describe this situation
Answer:
|x - 2| = 15 ; |x + 2| = 15
Step-by-step explanation:
Given that:
Wait time = 15 minutes
Variation in wait time depending on level of hotness = 2 minutes
X ± 2 = 15
x + 2 = 15 or x - 2 = 15
x = 15 - 2 = 13 or x = 15 + 2 = 17
Hence, to express the above as an absolute value equation :
|x - variation| = mean time
|x - 2| = 15 ; |x + 2| = 15
A hotel puts out 1 apple for every 3 orange as the fruit for their breakfast buffet. Write a ratio of apples compared to all the fruit. *
Answer:
1:4
Step-by-step explanation:
In the ratio:
Number of apples: 1
Number of oranges: 3
Total number of pieces of fruit: 3 + 1 = 4
apples : all fruit = 1:4
Answer: 1:4
The ratio of apples compared to all the fruit will be 1: 4.
What are ratio and proportion?A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
A hotel puts out 1 apple for every 3 oranges as the fruit for their breakfast buffet.
The ratio of apples compared to all the fruit will be given as,
Apple: Fruits = 1: (3 + 1)
Apple: Fruits = 1: 4
The ratio of apples compared to all the fruit will be 1: 4.
More about the ratio and the proportion link is given below.
https://brainly.com/question/14335762
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what does x equal in 3.8x = -19
Answer:
x=5
Step-by-step explanation:
3.8x5=19 so 19 divided by 5 = 3.8
its due today and please give a step by step answer
Answer:
x=3.333 or 10/3
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
3*x-(2*(-6*x+18)+14)=0
Pull out like factors :
-6x + 18 = -6 • (x - 3)
to make 3x - (-12 • (x - 3) + 14) = 0
Pull out like factors :
15x - 50 = 5 • (3x - 10) to get
5 • (3x - 10) = 0
Solve : 3x-10 = 0
Add 10 to both sides of the equation :
3x = 10
Divide both sides of the equation by 3:
x = 10/3 = 3.333
Answer:
f
Step-by-step explanation:
substitue the y
3x=2(-6x+18)+14
distrubute
3x=-12x+36+14
combine like terms
3x=-12x+50
add -12x on both sides
15x=50
divide 15 on both sides
x=50/15
simplify
x=10/3
I will mark brainliest!!!!!
Answer:
we need to c the triangle before we can answer btw
Step-by-step explanation:
Answer:
A' = (6, 1)
B' = (4, -1)
C' = (-6, 1)
Step-by-step explanation:
Use the rule 90° Clockwise: (x, y) ⇒ (y, -x).
I hope I helped and have a great day! ^-^
Tom and his friend both purchased some CD’s from an online store. The CD’s were all the same price. Tom purchased 5 CD’s for $80.00 and his friend purchased 3 CD’s for $52.00. Let x represent the number of CDs purchased, and y represent the total cost of the CDs. Write the equation in slope intercept form (y=mx+b). Show your work? NEED ASAP!
9514 1404 393
Answer:
y = 14x + 10
Step-by-step explanation:
We are given two points, (x, y) = {(5, 80), (3, 52)}. The 2-point form of the equation for a line can be used to find the equation.
y = (y2 -y1)/(x2 -x1)(x -x1) +y1
y = (52 -80)/(3 -5)(x -5) +80 . . . . . fill in the given values
y = (-28/-2)(x -5) +80 . . . . . simplify a bit
y = 14x -70 +80 . . . . . eliminate parentheses; next, collect terms
y = 14x +10
Dianes salary is $32,000 per year. Her car payments total $2,880 per year. What percentage is her salary
Answer:
9%
Step-by-step explanation:
Calculation for What percentage is her salary
Using this formula
Dianes salary percentage=Car payments per year/Salary per year
Let plug in the formula
Dianes salary percentage=$2,880 per year/$32,000 per year
Dianes salary percentage=0.09*100
Dianes salary percentage=9%
Therefore the percentage of her salary is 9%
I will give brainliest if you will help me. Please help me with my Algebra work. I would really appreciate it.
Using the substitution method and showing all of your steps. Solve the following System of Equations. Make sure to write your answer as an order pair.
`y=6x\ -11`
`-2x-3y=-7`
Answer:
Wassgoood
Step-by-step explanation:
Answer:
-2x-3(6x-11)=-7
-2x-18x+33=-7
-20x+33=-7
-20x=-40
x=2
y=6(2)-11
y=12-11
y=1
What is 3/4 x 8? Can you please tell me fast?
Answer:
6
Step-by-step explanation:
Think of the equation as 3/4 x 8/1. Multiply across to get 24/4 which can be simplified to the number 6.
Why you shouldn't worry about a credit score
Answer:Without a good credit score and history, the experts say, it's more difficult to qualify for a mortgage or car loan – and more expensive, too, because you won't get the best interest rates. In many states, bad credit can even raise your insurance premiums, cost you a rental apartment, or make it harder to get hired.
Step-by-step explanation:
Solve the equation.
3n + 2= 8 + 2n
A. 3
B. 4
C. 5
D. 6
How do i solve 2x+4=8
answer : x = 2
step 1 : move the constant to the right hand side and change its sign
ex : 2x=8-4
step 2 : subtract the numbers
ex : 2x=4
step 3 : divide both sides of the equation by 2
ex : x=2
solution : x=2
hope this helps !
- audrey ♡
A plumber charges a flat fee of $50 plus an additional $20 per hour.
a) Write and equation in slope-intercept form to represent the total cost the plumber will charge
b) How much will it cost for the plumber to work for 4 hours
c) how many hours must the plumber work to obtain $180?
Answer:
a) cost = 50 + 20x, where x is the number of hours worked for.
plot cost on the y-axis and hours on the x-axis.
b) cost = 50 + 20 x 4 = $130
c) 180 = 50 + 20x
130 = 20x
6.5 = x
additional charges increment every hour, so the plumber must work for 7 hours before they obtain $180.
Step-by-step explanation:
Find three consecutive even integers such that the sum of the second and third is 3 times the first integer.
Answer:
[tex]6[/tex], [tex]8[/tex] and [tex]10[/tex]
Step-by-step explanation:
Let [tex]x =[/tex] smallest consecutive even integer.
Since the second and third consecutive even integers can be expressed by our smallest even consecutive integer, we can express them as:
Second consecutive even integer = [tex]x+2[/tex]
Third consecutive even integer = [tex]x+4[/tex]
From "the sum of the second and third is 3 times the first integer", we can write:
[tex]x+2+x+4 = 3x[/tex]
[tex]2x+6 = 3x[/tex] (collect like-terms)
[tex]x=6[/tex]
∴ The first consecutive even integer is 6
Now, we can use substitution to find the values of the second and third consecutive even integers:
Second consecutive integer = [tex]x+2[/tex]
[tex]=6+2[/tex]
[tex]=8[/tex]
Third consecutive integer = [tex]x+4[/tex]
[tex]=6+4[/tex]
[tex]=10[/tex]
∴ The three consecutive even integers are [tex]6[/tex], [tex]8[/tex] and [tex]10[/tex].
Hope this helps :)
SOLVE FOR x:
4x^2+6x=10
Happy Holidays! =)
[tex]\large\boxed{x = -\frac{5}{2} \text{ and } 1}}[/tex]
4x² + 6x = 10
Move 10 to the other side so we can factor the trinomial:
4x² + 6x - 10 = 0
Factor the GCF, or 2 out of the equation:
2(2x² + 3x - 5) = 0
Factor the terms inside of the parenthesis:
2(2x + 5)(x - 1) = 0
Disregard the coefficient of 2 and set each factor equal to 0:
2x + 5 = 0
2x = -5
x = -5/2
x - 1 = 0
x = 1
The values of x are -5/2 and 1.
help me please :) find m of angle bdg
Answer:
90°
Step-by-step explanation:
BG=AG
ΔABG is an Isosceles.
D is the midpoint of AB.
DG⊥AB
So, m∠BDG=90°
The rectangular floor of a classroom is 36 feet in length and 24 feet in width. A scale drawing of the floor has a length of 12 inches. What is the perimeter, in inches, of the floor in the scale drawing?
Answer:
40 in
Step-by-step explanation:
36/12=3
24/3=8
12+12+8+8=40
The perimeter of the floor in the scale drawing is 40 inches.
What is a rectangle?A rectangle is a 2-D shape with length and width.
The length and width are different.
If the length and width are not different then it is a square.
The area of a rectangle is given as:
Area = Length x width
We have,
If the rectangular floor of the classroom has a length of 36 feet and a width of 24 feet, then the perimeter of the floor can be calculated as:
P = 2L + 2W
P = 2(36) + 2(24)
P = 72 + 48
P = 120 feet
We are given that the scale drawing of the floor has a length of 12 inches. This means that 12 inches on the scale drawing represent 36 feet in real life.
To find the perimeter in inches on the scale drawing, we can use the following proportion:
12 inches / 36 feet
= x inches / 120 feet
Simplifying this proportion, we get:
x = (12 inches / 36 feet) x 120 feet
x = 40 inches
Therefore,
The perimeter of the floor in the scale drawing is 40 inches.
Learn more about rectangles here:
https://brainly.com/question/15019502
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8.75x-2 i need help please
Answer:
-17.5
Step-by-step explanation:
there we go I can finally anwser here ya go have a good night keep working good :)