Mathematics High School
Answers
Answer 1
42
Step-by-step explanation:
first we have to find out 40% of 30 which is 12 because 15 is 50% and 27 is 90% Wich would get us 12 with 40% percent then you would take 30 and add 12 which would lead you with 42
Related Questions
A car depreciates in value by 10% each year. If a car was bought for £4500, how much will the value of the car decrease by after 3 years?
Answers
Answer:
£1,219.5
Step-by-step explanation
Original price of car = £4500,
If the car depreciates by 10% after first year
New price = 90% of 4500
New price = 0.9 * 4500
New price = £4050
Second year
Price = 90% of 4050
Price = 0.9 * 4050
Price = £3,645
Third year:
Price = 90% * £3,645
Price = 0.9 * £3,645
Price = £3,280.5
Decrease in value = £4500 - £3,280.5 = 1,219.5
Hence the value of the car would have decrease by £1,219.5 after 3 years
what is the domain and range of
(-2,5) (0,3) (2,2) (-4,0) (2,-3)
Answers
Answer:
Domain- -4,-2,0,2 Range- -3,0,2,3,5
Step-by-step explanation:
(x,y)
The domain is the x
The range is the y
And if the number is there more than once you only have to list it once.
Typically you list them from least to greatest so the smallest number the higher number.
What is the first step in the solution of (x + 3)2 = 5?
Answers
Answer:
Step-by-step explanation:
it should be (x+3)2=5
xx2=2x+5=5
5-5=0
x=2
Answer:
(x+3)2=5
2(x+3)=5
2x+2x3=5
2x+6=5
(2x+6)+(-6)=5+(-6)
2x+6-6=5-6
2x=-1
2x/2=-1/2
x=-1/2
Can anyone help me I want to copy the answer down so I know how to solve it❤️
Answers
9514 1404 393
Answer:
t = 4°
Step-by-step explanation:
As in any triangle, the sum of angles is 180°.
17t + 16t + 12t = 180°
45t = 180° . . . . . collect terms
t = (180/45)° . . . . divide by the coefficient of t
t = 4°
what is x + 9 = 18 + -2x
Answers
Answer:
X = 3
Step-by-step explanation:
Just tell me if you want an explanation
Answer : 3
Explanation: this is how i got it
I rearranged the terms :
x + 9 = - 2x + 18
subtracted 9 from both sides :
x + 9 = -2x + 18
-9 -9
simplified it :
x = -2x + 9
then add 2x to both side
x = -2x+ 9
+2x +2x
combine terms
3x = -2+9+2x
3x = 9
divide
3x = 9
/3 /3
answer: 3
i’m really sorry if this didn’t make sense. let me know i’ll make it better.
Help!
What is the value of x?
Enter your answer in the box.
x =
Answers
Answer:
39°
Step-by-step explanation:
102 + 39 = 141
180 - 141 = 39
Answer:
298
Step-by-step explanation:
I'm having trouble with this problem
Answers
Answer:
the first and third should be the correct answer I hope this helps
what is the scale factor of 8, 10, 14 to 12, 15, 21?
Answers
Answer:
The scale factor is 2/3
Step-by-step explanation:
The scale factor of 8, 10, 14 to 12, 15, 21 is 3/2.
What is Scale Factor?
Scale factor is the ratio of the dimension of the given original object and the dimension of the new object from the original.
Given that,
the numbers 8, 10, 14 is changed to 12, 15, 21.
Scale factor is the ratio of the change in the dimensions.
Scale factor will be the same for 12/8 or 15/10 or 21/14.
Scale factor = 12/8 = 3/2
Hence the scale factor is 3/2.
Learn more about Scale Factors here :
https://brainly.com/question/30215119
#SPJ2
What is the constant of proportionality?
Answers
Answer:
The table provides information on road accidents reported to the police for the days in December.
Accidents reportedFrequency1 - 7178 - 12713 - 17518 - 222
Estimate the mean.
Give your answer rounded to 1 DP
The graph represents function 1, and the equation represents function 2:
Function 2
y = 5x + 4
How much more is the rate of change of function 2 than the rate of change of
function 1? (4 points)
Answers
Primarily, horizontal lines mean zero slope. Therefore the equation is y= 3 because you are only left with the y-intercept at this point. The rate of change is another way of saying slope. Function 2's slope is 5 and function 1's slope is 0. Therefore, the rate of change of function 2 is greater than the rate of change of function 1 by 5.
5 is the answer.
hope this helps :)
Consider this quadratic equation:
2x2+12=0
Comparing it to the standard form, name a, b, and c
a=
b=
c=
Answers
Answer:
a=2
b=0
c=12
Step-by-step explanation:
The standard form of a quadratic equation is ax²+bx+c=0
Here's the given equation:
2x²+12=0
You might notice that the term bx is not there (there is just ax² and c). That means that b is 0.
The term 2x² is the term ax² in this equation. The coefficient in the term is 2, so that means that a is 2
12 has no variable, so that means it'll be c in the equation.
Hope this helps!
What is the coefficient of q in the sum of these two expressions?
(2/3q –3/4) and (–1/6q – r)
Answers
Answer:
The first one: (2/3q –3/4) answer: =2/3q+−3/4
The second one: (–1/6q – r) answer:
Let's simplify step-by-step.
−1/6q−r
There are no like terms.
Answer:=−1/6q−r
Step-by-step explanation: Hope this help
I need help please i got stuck so please help me
Answers
i hope you get outtttt
ᑘᘻᘻ ᓍᖽᐸᗩᖻ ᖶᕼᘿ ᗩᘉSᘺᘿᖇ ᓰS
ᘺᕼᘿᖇᘿ ᓰS ᖶᕼᘿ ᕴᑘᘿSᖶᓰᓍᘉ
If a pyramid is cut with a plane parallel to the base, the intersection of the pyramid and the plane is ----- a cross section
Answers
Answer:
Square cross section (Red)
Step-by-step explanation:
If the pyramid is cut with a plane (green) parallel to the base, the intersection of the pyramid and the plane is a square cross section (red). If the pyramid is cut with a plane (green) passing through the top vertex and perpendicular to the base, the intersection of the pyramid and the plane is a triangular cross section (red)
Find two integers whose sum is -6 and product is 8
Answers
Answer:
-4 and -2
Step-by-step explanation:
Sum = - 6
[tex] - 4 + ( - 2) \\ - 4 - 2 = - 6[/tex]
The product = 8
[tex]( - 4) \times ( - 2) = 8[/tex]
Remind that negative multiply negative equal positive.
Complete the statement to describe the expression (a+b+c)(d+e+f) ps. The expression consists of factors, and each factor contains terms.
Answers
Answer:
The expression (a+b+c)(d+e+f) consists of 2 factors, and each of these factors has 3 terms.
Step-by-step explanation:
khan acadamy gave me the answer
If a rental apartment has 984 square feet, and the monthly rent per square foot is $1.80, what is the total monthly rent?
Answers
Answer:
Step-by-step explanation:
Well the monthly rent, as an equation, would be:
[tex]y=1.8x[/tex]
Where x is the square footage of the apartment. Thus, substituting in 984 for x:
[tex]y = 1.8 * 984 = 1771.2[/tex]
Thus, the monthly rent will be $1771.20
Hope this helps!
Daniel ran 5 kilometers in 40 minutes. Andy ran 4,550 meters in 37 minutes. Who ran faster?
Answers
Answer:Daniel is faster
Step-by-step explanation:
Daniel : 5 kilometers is 5000 meters.
5000 / 40 is 125 meters per minutes
Andy: 4550 divided by 37 is 122.97 which is 2.3 meters per minute slower than Daniel
The answer is that Daniel is faster
7/19% of a quantity is equal to what fraction of the quantity?
Answers
Answer:
36.84%
Step-by-step explanation:
and 0.3684
7/19% of a quantity expressed as a fraction of the quantity is [tex]\frac{7}{1900}[/tex].
Percentage is the fraction of a quantity expressed as a number out of hundred. For example 1% can be expressed as 1/100
A fraction is a number that consists of a numerator and a denominator. An example of a frication is [tex]\frac{7}{19}[/tex]. 7 is the numerator and 19 is the denominator.
In order to convert a percentage to a fraction, divide the fraction by 100
[tex]\frac{7}{19}[/tex] ÷ 100
= [tex]\frac{7}{19}[/tex] x [tex]\frac{1}{100}[/tex] = [tex]\frac{7}{1900}[/tex]
To learn more about percentages, please check: https://brainly.com/question/92258?referrer=searchResults
What operation(s) would you perform on the longer leg (across from the 60 degree angle) of a 30-60-90 triangle to get the length of the hypotenuse?
Answers
9514 1404 393
Answer:
multiply by 2/√3
Step-by-step explanation:
The ratio of the hypotenuse to the longer leg is 2/√3. The hypotenuse can be found by multiplying the length of the longer leg by 2/√3.
please help me with this asap
Answers
Answer:
24
Step-by-step explanation:
ft*2
12*2=24
Answer:
Step-by-step explanation:24
i need help solving this question, please show work tysm!
Answers
The triangles r the same so that’s y it’s equal lol
DESPERATE WILL GIVE BRAINLIST AND THANKS
What is 2410 expressed as a decimal?
Enter your answer in the box.
Answers
Answer:
2.1400
Step-by-step explanation:
Answer:
2.4
Step-by-step explanation:
Which situation could be modeled by the expression 74 + (- })?
A
Anna is making salad dressing. She starts with 7 ounces of buttermilk and adds į ounce
B.
Ben has a board that has been shortened by 7 inches. He removes another inches from
с
board.
D.
C.
There are 7 pounds of oranges in a basket before Carly adds another į pound of oranges.
2.
A
D.
There are
rai:
74 cups of flour in a container before David removes į cup for making stew.
Answers
Answer:
the answer is d
Step-by-step explanation:
the answer is d because its the only one with 74 cups in it, when 74 cups is a crucial part of the problem
look at the attachment
Answers
a- 1/6
b-6/35
c- 1/2
d-2/15
Dashna paid a $20 fee for a booth at an art fair so she could sell her ceramic bowls. She will earn $10 for every ceramic bowl she sells. The equation y = 10x – 20 represents the amount of money, y, that Dashna will earn selling x ceramic bowls at the art fair. Which graph represents the amount of money Dashna could earn at the art fair?
Answers
Answer:
The correct answer is D
Step-by-step explanation:
-20 is your y-intercept and your graph will be increasing
Evaluate b(x)=18−0.5x when x=−2,0, and 5.
b(−2)=
b(0)=
b(5)=
Answers
Answer:
b(-2)= 19
B(0)=18
b(5)= 15.5
Shelly started driving her own car for Uber. she charges a flat fee of $5.00 and $0.50 for every kilometer Before plugging 32.50 into it, what would your equation look like?
Your answer
Answers
Answer:
The equation will be y=0.50x+5 before plugging 32.50
Step-by-step explanation:
Given that:
Flat fee charged by Shelly = $5.00
Per kilometer charges = $0.50
Let,
x be the number of kilometers driven.
y be the total amount earned.
y = 0.50x + 5
Hence,
The equation will be y=0.50x+5 before plugging 32.50
On a certain hot summer's day, 696 people used the public swimming pool. The daily prices are $1.75 for children and $2.00 for adults. The receipts for admission totaled $1298.75. How many children and how many adults swam at the public pool that day?
Answers
Answer:
i dont know
Step-by-step explanation:
Which expression is equivalent to √147
Answers
12 is sq root of 144
Hope that helps