Answers
Answer:
D. d=6.9r
Step-by-step explanation:
Related Questions
A rule that airline pilots use to estimate outside temperature in degrees Fahrenheit at an altitude of h thousand feet is to double h, subtract 15, and multiply the result by -1. State a rule for the altitude in feet based upon the outside temperature. At what altitude is outside temperature about -51°F?
Answers
Answer:
The altitude is 33 thousand feet at the given temperature
Step-by-step explanation:
We firstly would need to write out the rule.
We can do this by by doubling h, subtracting 15 and multiply the result by -1
Kindly note that h is in thousands of feet
That would be ;
T = (2 * h - 15) * -1
T = -1(2h - 15)
T = -2h + 15
T = 15 - 2h
So for the altitude in feet at a temperature of - 51 degrees Fahrenheit
We simply substitute the value of -51 for the temperature
So we have;
-51 = 15 - 2h
2h = 15 + 51
2h = 66
h = 66/2
h = 33 thousand feet
The graph of y = f(x) is shown. Choose all the true statements.
−2 is a member of the domain of f.
−2 is a member of the range of f.
f(0) > 0
f(2) > 2
Answers
Answer:
−2 is a member of the domain of f.
f(0) > 0
Step-by-step explanation:
Statement 1 is TRUE. Domain value includes set of values of x of the function. -2 is plotted on the x-axis on the graph. Therefore, it is a member of domain of f.
Statement 2 is incorrect. Range includes all possible y-values of the function. On the graph, no y-value plotted is -2. Therefore, -2 is NOT a member of the range of f.
Statement 3 is TRUE.
f(0) is approximately 2.2 on the graph. i.e. at x = 0, y ≈ 2.2.
Therefore, f(0) > 0.
Statement 4 is INCORRECT.
f(2) = 1, that is at x = 2, y = 1 as seen in the graph. Therefore, f(2) is not greater than 2.
25% of 28 is ______.
does anyone know the answer?
Answers
Answer:
it is 7
Step-by-step explanation:
you have to find 50% 28 and to do that you have to do 28/2=14 and then divide that by two 14/2=7 so seven is the answer can i have brainliest
Answer:
the answer is 7
Step-by-step explanation:
Find the result when 90 is decreased by 85%.
Answers
Answer:
13.5
Step-by-step explanation:
100 - 85 = 15
90 x 0.15 = 13.5
PLEASE HELP!!
What value of x makes this equation true?
5-2(x + 8) = 6x + 7
Answers
Answer:
Step-by-step explanation:
5-2x+16=6x+7
-2x-6x=7-5-16
-8x=-28
x=28/8=14/4=7/2=3.5
will be nice if you give me brainlies.Good luck!
Please help will give brainliest!!!!
Answers
Answer:
answer is c
Step-by-step explanation:
if u add it all up you get answer
What’s meaning of x in math
Answers
Answer:
variable
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.
Step-by-step explanation:
Someone pls help me!!! (7th grade math work) will mark as Brainliest
SHOW WORK PLSSSSKSKSKS
Answers
Answer:
J. 42 = x 57 100Step-by-step explanation:
last year won 57 games
this year won 15 games
the difference is 57 - 15 = 42,
this means it drops 42 / 57 = 0.73 (100%) ≈ 73%
therefore, the percentage decrease from the given choices is: J
42 = x
57 100
I need help PLLS I'll give you the Brainliest
Answers
Answer:
C
Step-by-step explanation:
21 - (-5) A negative minus a negitive turns into a +
21 + 5 = 26
A. -21 + 5 = -16 NO
B. 21 - 5 = 16 NO
C. 21 + 5 = 26 YES
D. -21 - 5 = -26 NO
Answer:
C
Step-by-step explanation:
When subtracting a negative, the two negatives cancel out. The rule is that two like signs become positive.
Therefore, +(+) =+ and -(-) = +
So, the equation would be 21 + 5.
The difference of three times a number and 4 is 8. What is the value of n?
a. -1.3
C. 4
b. -4
d. 1.3
Answers
Answer:
It’s c
Step-by-step explanation:
I just did it in edg
Based on the graph, which of the following represents a solution to the equation
(-2,-3)
(3,2)
(1,3)
(3,1)
Answers
Answer:
Add a picture of the graph please?
Step-by-step explanation:
Can anyone help me identifying pounds and liters ;-;
Answers
Answer:
sure but can u help me ban 50070356 he or she is using my pfp as hers
Step-by-step explanation:
Given f(x) = -7x + 9, what is the slope and y-intercept?
Answers
Answer:
7x is the slope,9 is the y-intercept
Step-by-step explanation:
7x is the constant/unit rate,9 is what gets added after which makes the expression non-proportional.
What does the word “flip” tell you to do in “keep change flip” for dividing fractions a) change the place of the numbers numerator and the denominator for the first fraction b) change the places of the numbers in the numerator and the denominator for the second fraction c) change the places of the numbers in the numerator and the denominator for both fractions d) change the ÷ between the fractions
Answers
Answer:
b) change the places of the numbers in the numerator and the denominator for the second fraction
Step-by-step explanation:
In the phrase "keep change flip":
You "keep" the first fraction.
"Change" the division sign into a multiplication sign.
"Flip" (or switch) the places of the numerator and denominator in the second fraction.
Example:
[tex]\frac{1}{2}[/tex] ÷ [tex]\frac{1}{3}[/tex]
[tex]\frac{1}{2}*\frac{3}{1}=\frac{3}{2}=1.5[/tex]
Hope this helps.
what is the value of the expression when a = 3 and b = 5
3a + b - 4
a. 4
b. 7
c. 10
d. 34
Answers
Answer:
10
Step-by-step explanation:
I just took the test! I got an 80 because I got this wrong but I checked it's 10! <3
Answer: The answer is C.10
Step-by-step explanation: I got it wrong and an 80, I looked to see the correct answer was 10 :3
What is the value of the 5 in the number 4,567,433?
Answers
or
five hundred thousandth
hope this helps!
Answer:
it is 5 hundred thousand so thousands place
Step-by-step explanation:
A rectangular garden has length and width as given by the expressions below.
Length: 4 - 7(3x + 4y)
Width: 3x(-2y)
Write a simplified expression for the perimeter of the rectangle.
Answers
2[4 - 21x -28y] + 2[-6xy]
8 - 42x - 56y -12xy
the perimeter of given rectangular garden is (8 - 42x - 56y -12xy).
Can you guys please help me with this math problem
Answers
Answer: I believe that its the second one, the third one, and the fifth one. Have a great day and good luck!
Step-by-step explanation:
Answer:
the first isnt true, the second is true, the third fourth and fifth are correct and the sixth is false
Step-by-step explanation:
Mrs.Santos has two kinds of flowers in her garden. the ratio of lilies to daisies in her garden is 3:2
if there are 12 lilies what is the total number of flowers in her garden
Answers
Answer:
there would be 18 total flowers in her garden
Answer:
12:8
Step-by-step explanation:
I think this is the answer. I think this help
Select all that apply. The number -2 is a...
A: Natural Number
B Whole Number
C Integer
D Rational Number
E Irrational Number
F Real number
Answers
Answer:
it is an integer
Step-by-step explanation:
bc it's -3
Which is the first step in solving
X-2 = 2?
Answers
Answer:
The first step is to find a number that when subtracted from 2 gives you 2.
Step-by-step explanation:
The algebraic part of this problem would be to add the -2 (adding 2 to both sides) to both sides, so
first x-2=2, then x-2(+2)=2(+2) which would give us,
x=4
*note: the parenthesis are just to show that we are adding the 2, to make it more understandable.
The six lowest temperatures for a certain date were listed
in an almanac as -32, -14, -28, -19, -38, and -21. Which of
these temperatures is the COLDEST?
Answers
Answer: -38 is the coldest because it is the lowest.
A cube has a volume of 125 cube inches. what is the length of each edge
Answers
Answer:
5 cubic in. would be the length of each edge.
Step-by-step explanation:
volume = length * width * heigh
125 = 5 * 5 * 5
Solve this equation: -3(x - 14) + 9x = 6x +42
O
Solving this equation results in the statement 0 =0. Because this is a true statement, the equation has a unique solution
O
Solving this equation results in the statement 6 = 0. Because this is a false statement, the equation has infinitely many solutions.
O
Solving this equation results in the statement 0 = 0. Because this is a true statement, the equation has infinitely many solutions.
Solving this equation results in the statement 6 = 0. Because this is a true statement, the equation has no solution
Answers
Answer:
"Solving this equation results in the statement 0 = 0. Because this is a true statement, the equation has infinitely many solutions."
Step-by-step explanation:
6x+ 42= 6x=42
I'M FOR SURE 100%
A clothing store uses a markup of 40% on all items they purchase to sell, find the markup is the original cost was 10.2
Please help I’m desperate
Answers
Answer:
$14.28
Step-by-step explanation:
you have to find 40% of 10.20 which is 4.08. Then you add that to 10.20 and you get 14.28. (please give brainliest)
Answer:
4.08
Step-by-step explanation:
PLEASE HELP WILL GIVE BRAINLIST.
What is the slope of the line in the graph?
Answers
Answer:
x-1
Step-by-step explanation:
5x – 4y = 9
x - 2y = 3
System of equation
Answers
Answer:
{x,y}={5,4} x is =5 y= to 4
Create three different expressions that are each equal to 20. Each expression should include only these three numbers: 4, -2, and 10.
Answers
Answer:
Step-by-step explanation:
you could do;
10 x -2 = 20
-2 x (-2) x 10 divided by (-2) + 10 + 10 + 10 +10 =20
4 + 4 - 10 x -2 - 4 - 4 = 20
I just took a science test and got a 80% on the test. CBA's are 50% of our grade and I had a 98% in science class. How much will my grade drop?, what will my new grade be?
Answers
Answer:
89%
Step-by-step explanation:
Answer:
Grade drops 9 percentage points.
New overall grade is 89%
Step-by-step explanation:
The test with a score of 80% accounts for 50% of the grade.
The current average of 98% accounts for the other 50% of the grade.
50% of 80% + 50% of 98% =
= 40% + 49%
= 89%
The new overall grade is 89%.
Since the previous overall grade, before the test, was 98%,
and 98% - 89% = 9%, then
the new grade is 9 percentage points lower than the previous overall grade.
You start at (-2,-4). You move down 1 unit and right 6 units. Where do you end
Answers
Answer:
(4,3)
Step-by-step explanation:
moving down 1 unit makes the point (-2,3)
moving 6 units to the right makes the point(4,3)