Answer:
r = 4
General Formulas and Concepts:
Pre-Alg
Order of Operations: BPEMDASEquality PropertiesStep-by-step explanation:
Step 1: Define equation
-5 + 22 = r - 4 + 3r + 5
Step 2: Solve for r
Combine like terms: 17 = 4r + 1Subtract 1 on both sides: 16 = 4rDivide 4 on both sides: 4 = rRewrite: r = 4Step 3: Check
Plug in r to verify it's a solution.
Substitute: -5 + 22 = 4 - 4 + 3(4) + 5Add/Subtract: 17 = 3(4) + 5Multiply: 17 = 12 + 5Add: 17 = 17Find two integers whose sum is 19 and product is 90
Answer:
Step-by-step explanation:
The two integers are 10 and 9
10 + 9 = 19
10 x 9 = 90
The two numbers are 9 and 10.
What are integers?A number without a decimal or fractional element is known as an integer, which can be both positive and negative, including zero
Let the two integers be x and y.
Given that, the sum of the integers is 19, therefore,
x + y = 19
x = 19 - y
Given that, the product of the integer is 90:
xy = 90
(19-y)y = 90
19y - y² = 90
y² -19y + 90 =0
y² -10y - 9y + 90 = 0
y(y - 10) -9(y - 10) = 0
(y -9)(y - 10) = 0
y = 9 and y = 10
Hence, the two numbers are 9 and 10.
Learn more about integers:
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plz help!! will give brainliest serious answers only
Answer:
6/8
pls brain me
Step-by-step explanation:
Mary went to the local market to purchase some fruit. Each box of
oranges sold for $3 and each box of pears for $5. Mary purchased a total
of 18 boxes of fruit for $68. How many boxes of oranges did she
purchase?
Answer:
11
Step-by-step explanation:
11 BOXES OF ORANGES IS $33
7 BOXES OF PEARS IS $35
WHICH EQUALS $68
MEANING THERE IS 11 BOXES OF ORANGES
Sara is multiplying two factors, one is a whole number and one has two decimal places She says the product could have one decimal place is she correct? Give an example your reasoning
Answer: i don't understand
A plane flew at a constant speed between Denver and Chicago.
It took the plane 1.5 hours to fly 915 miles.
How far would the plane fly in 10 hours at this speed?
Answer:
To found out his constant speed
915/3=305 Meaning the plane flew 305 miles per half hour
Meaning that the plane flew 610 miles per full hour
Step-by-step explanation:
There ya go
Determine whether the following graph represents a function,
Not a Function
Function
Submit answer
Answer:
Create a single variable linear equation that has no solution. Solve the equation algebraically to prove that it does not have a solution.
Create a single variable linear equation that has one solution. Solve the equation algebraically to prove that there is one distinct solution for the equation.
Create a single variable linear equation that has infinitely many solutions. Solve the equation algebraically to prove that there is an infinite number of solutions for the equation
Step-by-step explanation:
What is the solution set for |x/2|=8?
Answer:
D) x=16 and x=-16
Step-by-step explanation:
D) x=16 and x=-16
If you replace x with either one of them and then take the absolute value, you would have 8.
Marking brainless lol!!
Answer:
c
Step-by-step explanation:
3 times c which is the number of cousins + 8 which she got from her mom
=
Answer:
the answer is c, 3c+8=20
Step-by-step explanation:
$3 times the number of cousins + $8 from Ella's mom = $20.
Please give brainliest!
If the shared hypotenuse between the two right triangles is 1.3 centimeters longer than the longest leg length, what is the length of the hypotenuse if the longest leg length is 5.5 centimeters?
Answer:
6.8
Step-by-step explanation:
This sounds super complicated, but all it is asking is 1.3 + 5.5, which equals 6.8.
Marneshia walked of a mile in of an hour. What equation can be used to calculate her unit rate in miles per hour?
time divided by distance. She was going 1 miles an hour
Yesterday, there were 10 problems assigned for math homework. Anna got 7 out of 10 problems correct. What percentage did Anna get correct
Answer:
70%
Step-by-step explanation:
7/10=70%
Answer:
70 percent
Step-by-step explanation:
if you multiply both factors by 10 you get 70/100 which is 70 percent
The following information is known about a savings account. What amount of simple interest will be earned?
Answer:
what is you exact question?
An airplane traveled 108 miles in 20 minutes? How long will it take to fly 162 miles?
a
30 min
b
25 min
c
8.1min
d
35 min
omg pls help me im giving like all my points out for this
Answer:
poopy
Step-by-step explanation:
Tee Hee
Answer:
a, 30 minutes
Step-by-step explanation:
108 divided by 20 is 54
162 divided by 54 is 30
Choose the expression equivalent to 2^ -2 x
2^5.
Answer:
2³
Step-by-step explanation:
Using the rule of exponents
[tex]a^{m}[/tex] × [tex]a^{n}[/tex] = [tex]a^{(m+n)}[/tex] , thus
[tex]2^{-2}[/tex] × [tex]2^{5}[/tex] = [tex]2^{(-2+5)}[/tex] = 2³ [ = 8 ]
which part of this expression represents he total amount the friends pay for meal tickets
Answer:
whats the expression
Step-by-step explanation:
Answer:
d+2.5+d-4
Step-by-step explanation:
a 1 16 -3
b 2 16 3
c 1 12 -3
d 1 -16 -2
Answer: Um, The answer is 1, 12, –3.
Step-by-step explanation:
Which of the sets of ordered pairs represents a function?
P = {(3, 5), (−1, 5), (4, −6), (2, 9)}
Q = {(7, −2), (5, 9), (−1, 8), (5, −3)}
Answer:
P
Step-by-step explanation:
P tells us that the Domain: 3,-1,4,2 doesn't repeat
Q does repeat its Domain: 7,5,-1,5
Reminder that in order for a line of ordered pairs to be a function the domain number Shouldn't repeat, That doesn't mean that the range cant repeat.
Example: (5,-3), (5,9) Not a function
(-1,-6), (7,-6) Function
Out of the two set given, the set of ordered pairs that represents a function is: P = {(3, 5), (−1, 5), (4, −6), (2, 9)}.
What is a Function?A set of ordered pairs that has one exact y-value assigned to each x-value is considered a function.
In set P, all x-values has exactly one y-value, while in set P, the x-value, 5, has two different y-values, 9 and -3.
Therefore, the set of ordered pairs that represents a function is: set P.
Learn more about a function on:
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PLEASE GUYS IM DESPRATE
Answer:
Step-by-step explanation:
Putting values in the equation
-(-3)-(2)3+ (-2) (3)
3 - 8 + (- 6)
-5 - 6
= - 11
Answer:
-11
Step-by-step explanation:
-(-3)-(2^3)+(-3)2
3-8-6=-11
Solve each proportion.
1) 4/7 =2/n
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[tex] \frac{4}{7} = \frac{2}{n} \\ [/tex]
Inverse both sides
[tex] \frac{7}{4} = \frac{n}{2} \\ [/tex]
[tex] \frac{n}{2} = \frac{7}{4} \\ [/tex]
Multiply sides by 2
[tex]2 \times \frac{n}{2} = 2 \times \frac{7}{4} \\ [/tex]
[tex]n = \frac{7}{2} \\ [/tex]
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How many solutions are in the following system? x + y = 9 2x + 2y = 18
Answer:
3
Step-by-step explanation:
What is the predecessor of 2,777
Answer:
2,776
Step-by-step explanation:
the name predecessor means before hence the number just before 2777.
someone help. i’m bad at math.
Step-by-step explanation:
when perpendicular, u must use m1m2=-1
so , (⅓)(m2)=-1
m2= -3
y-y1=m2(x-x2)
y-1=-3(x-0)
y=-3x+1
Answer:
y = -3x + 1
Step-by-step explanation:
to be perpendicular the multiplication of the gradiens should be -1
m1 × m2 = -1 , m1 = 1/3
1/3 × m2 = -1
m2 = -3
and required equation passes through the point.( 0,1)
y = m2 x + c2
1 = -3 (0) + c2
c2 = 1
so the equation
y = -3x + 1
PLZ HELP U WILL GET BRAINLIEST Solve for X:
Answer:
x=17
Step-by-step explanation:
7x+15=4x+66
3x=51
x=17
Answer:
17
Step-by-step explanation:
7x + 15° = 4x + 66° (vertically opposite angles are equal)
7x - 4x = 66 - 15
3x = 51
x = 51/3
x = 17
hope it helps you^^
Topic : Composition of Functions - Worksheet 2 Using f(x) = 5x + 4 and g(x) = x - 3,find: 1. f(g(6)) 2. g(f(-7)) 3. f(f(8)) 4. g(f(x))
Answer:
[tex]f(g(6))=19[/tex][tex]g(f(-7))=-34[/tex][tex]f(f(8))=224[/tex][tex]g(f(x))=5x+1[/tex]Step-by-step explanation:
Considering the functions
[tex]f(x) = 5x + 4[/tex]
[tex]g(x) = x - 3[/tex]
Part 1)
Find
[tex]f(g(6))[/tex]We need to first dertermine [tex]g(6)[/tex]
[tex]g(x) = x - 3[/tex]
Putting x = 6
[tex]g(6) = 6-3=3[/tex]
Then
[tex]f(g(6))=f(3)=5(3)+4=15+4=19[/tex]
Hence,
[tex]f(g(6))=19[/tex]
Part 2)
Find
[tex]g(f(-7))[/tex]We need to first dertermine [tex]f(-7)[/tex]
[tex]f(x) = 5x + 4[/tex]
Putting x = -7
[tex]f(-7) = 5(-7)+4=-35+4=-31[/tex]
Then
[tex]g(f(-7))=g(-31)=(-31-3)=-34[/tex]
Hence,
[tex]g(f(-7))=-34[/tex]
Part 3)
Find
[tex]f(f(8))[/tex]We need to first dertermine [tex]f(8)[/tex]
Putting x = 8
[tex]f(8) = 5(8)+4=40+4=44[/tex]
Then
[tex]f(f(8))=f(44)=5(44)+4=220+4=224[/tex]
Hence,
[tex]f(f(8))=224[/tex]
Part 4)
Find
[tex]g(f(x))[/tex][tex]f(x) = 5x + 4[/tex]
[tex]g(f(x))=g(5x+4)[/tex]
[tex]=(5x+4)-3=5x+1[/tex]
Hence,
[tex]g(f(x))=5x+1[/tex]
I need help pleaseee ASAP!
Will give brainliest to the correct answer :)
Answer:
7 rate of change. If right consider brainlist:)
Step-by-step explanation:
Original Price = $ 20, % Markup = 15%
Answer:
23 dollars
Step-by-step explanation:
so to figure out how much more you grab 20 and multiply by .15 as percent and you will get 3 dollars more so 23
What are the next 3 terms in the sequence 2.0,3.5,5.0,6.5?
Answer:
8.0, 9.5, 11.0
It is increasing by 1.5.
Step-by-step explanation:
Answer:
8.0
explanation; the answer is 8.0
On a certain day, the temperature
changed at a rate of -3°F per
hour. How long did it take for the
change in temperature to be
-33°F?
what is the remainder of 2,445 ÷ 8
305 R 5
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my mom just grounded me for a year bc my sister dropped her vap3 on the floor and i tried to pick it up fast so my mom didnt see. she saw tho and my sister didnt even tell the truth the whole time i was getting yelled at. what do i do
Answer:
Explain
Step-by-step explanation:
Tell her what happened, be honest and calm
Answer:
is this answer look
Step-by-step explanation: