Answer:
r≈2.55
hope this helps!
Use the substitution method to solve the system of equations. Choose the correct ordered pair. x+y=12 and -x=-y-10
A (9, 3)
B (10, 2)
C (11, 1)
D (8, 4)
6x + 5y = 16
y = -7x – 20
a. (8,-4)
b. (-4, 2)
c. (4, 2)
d. (-4,8)
A group of 35 students are going on a field trip to the movies. The total cost for the tickets is $123.15. About how much money will each student need to pay for a ticket?
Answer:
about 4 dollars :)
hope this helps
the graph to the right represents mario’s mile time in minutes, y, based on the number of hours he spends training in hours , x what conclusion can you make
Answer: it is 13+13=26
Step-by-step explanation:
I don’t care.
please help. will guve brainliest
Answer:
ASA
Step-by-step explanation:
Because QR bisects ∠PQS, ∠PQR ≈ ∠SQR
QR = QR
It is given that ∠ PRQ ≈ ∠SRQ
*Please help ASAP*
Susan has a collection of 48 nickles and dimes. If the number of nickles is three times the number of dimes, how many nickles and how many dimes dose she have?
Answer:
12 dimes and 36 nickels
Step-by-step explanation:
Let number of dimes be x. Since the number of nickles is three times the number of dimes, the number of nickels is 3x. There are a total of 48 coins, so number of nickels + number of dimes = 3x + x = 4x = 48 -> x =12. So she has 12 dimes and 3(12) = 36 nickels.
I hope this helps!
A recipe calls for 1/2 cup of sugar and 1/3 cup of cinnamon. What is the measure of the
two ingredients combined?
Answer:
5/6 cup
Step-by-step explanation:
1/2+1/3
5x+11=7x+8 for x
please help me asap
Answer:
x = 3/2
Step-by-step explanation:
Step 1:
5x + 11 = 7x + 8 Equation
Step 2:
11 = 2x + 8 Subtract 5x on both sides
Step 3:
3 = 2x Subtract 8 on both sides
Answer:
x = 3/2
Hope This Helps :)
Solve: 9 + 11| + |-1|
Answer:
21
Step-by-step explanation:
9+11+|-1|
9+11+1
21
Answer: 21
Step-by-step explanation: the absolute value of any number will be positive so the absolute value of -1 is one. After that all you have to do it’s add 9 and 11 which is 20 + 1 which is 21
Hope this helped
-6 + 2x = 14 this is my question pls answer looool
Answer:
[tex]x = 10[/tex]
Step-by-step explanation:
[tex] - 6 + 2x = 14 \\ 2x = 14 + 6 \\ 2x = 20 \\ x = 10[/tex]
Step-by-step explanation:
-6+2x=14
2x=14+6
2x=20
x=20
2
x=10 ans
is cost a function of time?
Answer: A cost function is a mathematical formula used to used to chart how production expenses will change at different output levels. In other words, it estimates the total cost of production given a specific quantity produced.
What is the approximate population change that occurs between 2 years from now and 10 years from now?
A. 5,358
B. 6,570
C. 31,212
D. 35, 150
E, 36,570
Answer:
B
Step-by-step explanation:
Answer: b
Step-by-step explanation: I took the test
For parties of six or more, a restaurant adds a 20% gratuity (or tip). Ifa
dinner bill for a large party comes to $148.25, find the total dinner bill with
tip.
Answer:
$247.37
Step-by-step explanation:
The total dinner bill with a tip for the large party is $177.90.
What is the Multiplication operation?In mathematics, Multiplication operations perform Multiplying values on either side of the operator.
For example 4×2 = 8
The gratuity for a large party is 20% of the bill, so we can calculate the gratuity by multiplying the bill by 0.2.
Gratuity = bill x 0.2
Gratuity = 148.25 x 0.2
Apply the multiplication operation, and we get
Gratuity = 29.65
To find the total bill, we add the gratuity to the original bill.
Total bill = bill + gratuity
Total bill = 148.25 + 29.65
Apply the addition operation, and we get
Total bill = $177.90
Hence, the total dinner bill with a tip for the large party is $177.90.
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How do you write x+y=9 in y=mx+b?
Answer:
Step-by-step explanation:
all you do is move everything to one side except for y
y = 9 - x
to write in mx + b form you just switch the order
y = -x + 9
(m is -1 but you don’t need to write the 1)
if f(x)=2^x +1, then f(3)
Answer:
9
Step-by-step explanation:
f(x)=2^x +1, then f(3)
Replace the x with 3
f(3)=2^3 +1
(2*2*2)+1 = f(3)
9= f(3)
what linear equation is not represented by the graph?
Answer:
D or y=-2x+4
Step-by-step explanation:
In the graph the y intercept is 2.
In y=-2x+4 they y intercept is 4 so this is not represented by the graph.
Answer:
D. y = -2x + 4
Step-by-step explanation:
When setting up the equation in slope-intercept form (y = mx + b), the 'b' variable represents the 'y' value where the line intercepts the y-axis. The 'm' represents the slope, which is the rate of change. If D was the correct answer, then the line would be placed higher up and would have been tilted down more.
Show your work please (Ignore my selection that was on accident)
Answer:
The first option
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
Sandi buys 5 fewer packages of pencils than p packages of pens. Pencils costs $2.25 per package and pens costs $3 per package. What does the expression 3p + 2.25(p - 5) represent?
Answer:
3p + 2.25(p - 5) represents the total cost of the pens and pencils that Sandi bought.
Step-by-step explanation:
p = number of packages of pens
p - 5 = number of packages of pencils
3p = cost of p packages of pens
2.25(p - 5) = cost of p - 5 packages of pencils
3p + 2.25(p - 5) represents the total cost of the pens and pencils that Sandi bought.
We are to determine what the expression 3p + 2.25(p - 5) represent.
let
packages of pens = p
packages of pencils = p - 5
cost of p - 5 packages of pencil = $2.25
cost of p packages of pen = $3
Total cost of pencil and pen = (p)3 + (p - 5)2.25
= 3p + 2.25(p - 5)
The expression 3p + 2.25(p - 5) represent total cost of pen and pencils sandi bought
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For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. Write an equation for
the cost, y, after x hours of babysitting.
Unit Rate:
Answer:
y = 5x + 3
Step-by-step explanation:
You could also plot a line on a graph with this equation to help you even more.
casey's den is 10feet longer than it is wide. If the den's area is 119 square feet, what are the dimensions of the room?
Answer:
The width is 7ft and the length is 17 ft
Step-by-step explanation:
Let w represent the width of the room and L represents the length of the den.
Given that:
caseys den is 10feet longer than it is wide
Then;
w + 10 = L ---- (1)
The area of the den = 119 ft²
Area = w × L
119 = w × L ---- (2)
From equation (1);
let w = L - 10.
Now we can replace the value of w into equation (2)
i.e.
(L - 10) × L = 119
L² - 10L - 119 = 0
(L + 7) ( L - 17) = 0
L + 7 = 0 or L - 17 = 0
L = - 7 ft or L = 17 ft
Recall that:
w = L - 10
w = -7 - 10 or w = 17 - 10
w = -17 or w = 7 ft
The area of the den can now be:
Area = -17 ft × - 7ft or 17ft × 7 ft
Area = 119 ft² or 119 ft²
Since it is ideal to use the positive integer,
Then the width is 7ft and the length is 17 ft
Luis is filling his half-empty swimming pool with water at a rate of 220 gallons per hour. After 33 hours the pool contains 855 gallons of water. What is the equation in point-slope form that relates the amount of water in the pool, y, to the number of hours, x, that Luis has been filling the pool?
What is the equation in standard form?
Answer:
[tex]y - 220x = -6405[/tex]
Step-by-step explanation:
Given
[tex]Rate = 220[/tex]
At [tex]time = 33\ hours[/tex], [tex]gallons = 855[/tex]
Required
Determine the equation
The rate means slope (m).
So:
[tex]m = 220[/tex]
From the question, x represents time and y represents the amount of water.
So:
[tex]x=33[/tex] when [tex]y = 855[/tex]
Or:
[tex](x_1,y_1) = (33,855)[/tex]
The equation is determined using:
[tex]y - y_1 = m(x - x_1)[/tex]
This gives:
[tex]y - 855 = 220(x - 33)[/tex]
[tex]y - 855 = 220x - 7260[/tex]
Collect Like Terms
[tex]y - 220x = 855 - 7260[/tex]
[tex]y - 220x = -6405[/tex]
Hence, the equation in standard form is:
[tex]y - 220x = -6405[/tex]
There are 15 squares and 12 circles. What is the simplest ratio of circles to squares?
Answer:
4 : 5
Step-by-step explanation:
12 circles : 15 squares
divide by a common divisor = 3
12/3 : 15/3
4 : 5
Solve by using the standard algorithm.
8,401
x 305
Answer:
2,562,305
Step-by-step explanation:
I feel so idiotic right now, pls help
Answer:
6:9
9:12
reduce
2:3
3:4
make them have common denominator
8/12
9/12
8:12<9:12
6:9<9:12
-25 - 6k + 7=6(1+ 3k)
Solve the equation for The Variable
Answer: Isolate the variable by dividing each side by factors that don't contain the variable.
k = −1
Answer:
-1
Step-by-step explanation:
-25+7 -6=6k+18k
-24=24k
k=-1
What is the value of x in the solution to this system of equations? y + 2x = -1 y = 3x+4?
Answer:
x = -1
Step-by-step explanation:
y + 2x = -1
Subtract 2x from both sides;
y = -2x - 1
y = 3x + 4
-2x - 1 = 3x + 4
Subtract 3x from both sides;
-5x - 1 = 4
Add 1 to both sides;
-5x = 5
Divide both sides by -5
x = -1
what is 5/6 x 3 in fraction form?
Answer:
The answer is 5/2
Step-by-step explanation:
5/6 times 3
15/6=
5/2
The fraction form of (5/6)×3 after simplification is 5/2.
What is a fraction?A fraction is written in the form of p/q, where q ≠ 0.
Fractions are of two types they are proper fractions in which the numerator is smaller than the denominator and improper fractions where the numerator is greater than the denominator.
Given, (5/6)×3.
= (5/6)×(3/1).
Now in fraction multiplication, we simply multiply the numerator with the numerator and the denominator with the denominator.
= (5×3)/(6×1).
= 15/6.
= 5/2.
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Help i only have a day. 5% of what number is 12? Round your answer to the nearest tenth place if necessary. (Use any method to solve this question, but you must show work)
Answer:
240
Step-by-step explanation:
So here’s the step by step (for the show your work thingy)
so we can write an equation
0.05x=12
We use 0.05 becuase 5 percent is basically 5/100 and the x is used becuase we don’t know what the number is and the =12 is for the number that came out as a final result
ow we can solve the equation
x=12/0/05
x=240
Final answer is 240
What is the length of the line?
Using the Pythagorean theorem, the length of the line is: √45 = 6.7 units.
How to Find the Length of a Line Using Pythagorean Theorem?The Pythagorean theorem is the equation that describes how the lengths of the three sides of a right triangle relate to each other. If a and b are smaller legs, and c us the hypotenuse of the triangle, the Pythagorean theorem states that:
c² = a² + b².
Consider the line above to be the hypotenuse of a right triangle that is formed by the rise and run of the line.
Rise = a = 3 units
Run = b = 6 units
Line = c
Therefore:
c² = 3² + 6²
c² = 9 + 36
c² = 45
c = √45
c = 6.7 units.
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DON'T answer if you don't know.
Do you guys actually know how to give brainless.
to give a brainliest, you can look in the upper-right corner of the answer and see a crown. if you click that, it will then mark that question as brainliest answer for your question.
Answer:
There has to be 2 answers
You can have to have any rank above beginner
When 2 answers there will be a thing next to the thanks button saying 'mark as brainliest'
↪ Press that
Step-by-step explanation:
Hope this helps. :)
