Answer:
x = 48
Step-by-step explanation:
x/2+21=45
subtract 21 on both sides
x/2 + 21 - 21 = 45 - 21
x/2 = 24
Multiply by 2 on both sides
x/2 * 2 = 24 * 2
x = 48
Check
48/2 + 21 = 45
24 + 21 = 45
45 = 45 CORRECT
Hope this helped!
Will give brainliest!!! The MTC Theater holds 250 people, and last night’s performance sold out! Students under the age of 16 paid $2.50 per ticket, while everyone else paid $4.00 per ticket. Last night’s show brought in $910.
Write a system to represent the given equations.
How many adult tickets were sold?
How many under the age of 16 tickets sold
Answer:
Student's tickets: 60
Adult's tickets: 190
I think this is right
Step-by-step explanation:
"Let x represent the number of tickets sold to students under the age of 16. Let y represent those over the age of 16.
Equation 1, number of tickets sold:
The total number of tickets sold to students under the age of 16 plus the number of tickets sold to students over 16 must equal 250 (since the theater was sold out). The equation becomes:
x + y = 250
Equation 2, revenue from tickets sold.
The total revenue was $910. The cost of tickets under 16 is $2.50 and the cost of tickets over 16 is $4.00. The equation becomes:
2.50 * x + 4.00 * y = 910.00
The system of equations to solve is:
x + y = 250
2.50 * x + 4.00 * y = 910.00 "
In a candy store in California using a 6% tax sale, three jars of candy are labeled $35.00 after tax. What is the sale price of each jar of candy after tax?
Answer:
Step-by-step explanation:
You first have to find 6% of 35. Which is 2.1 and so you then multiply 2.1×3 which is 6.3 and then subtract 6.3 from 35. 35-6.3 which is 28.7 and then divide that by 3. Which is essentially 9.6 if you round up the decimal. Otherwise it'd just be 9.566667. So, I'd say each is 9.6 or 10 if you're rounding for the nearest whole number.
Answer:
its $10.90
Step-by-step explanation: i did this and got it correct
Kierra drew a line that is 3 times four-sevenths inches long. Which fraction represents the same length?
Four-sevenths inches
Seven-sevenths inches
Twelve-sevenths inches
StartFraction 25 over 7 EndFraction inches
Answer: [tex]\frac{12}{7}[/tex] inches
Step-by-step explanation:
3 × [tex]\frac{4}{7}[/tex]
= [tex]\frac{3 x 4}{1 x 7}[/tex]
= [tex]\frac{12}{7}[/tex]
= 1[tex]\frac{5}{7}[/tex]
(4 + 2/9) =(6 + 1/3)b
Step-by-step explanation:
(4 + [tex]\frac{2}{9}[/tex] ) = (6 + [tex]\frac{1}{3}[/tex] ) b Original equation
4 + [tex]\frac{2}{9}[/tex] = 6b + [tex]\frac{1}{3}[/tex]b Distributive property
4 [tex]\frac{2}{9}[/tex] = 6[tex]\frac{1}{3}[/tex] b Simplification
[tex]\frac{38}{9}[/tex] = [tex]\frac{19}{3}[/tex]b Extra simplification
[tex]\frac{38}{9}[/tex] × [tex]\frac{3}{19}[/tex] = [tex]\frac{19}{3}[/tex]b × [tex]\frac{3}{19}[/tex] Isolating the variable
[tex]\frac{2}{3}[/tex] = b Your answer
I hope this helps!!!
Chris is at the florist and wants to buy flowers. Arrangements of daisies are $4.25 and the arrangements of roses are $6.50. He wants to spend less than $39 and wants to buy at least 4 arrangements.
Answer:
Let's define the variables:
D = arrangements of daisies that he buys
R = arrangements of roses that he buys.
Each arrangement of daisies costs $4.25, then for D of them, the total cost is:
D*$4.25
And for the roses, the cost of each one is $6.50, then the cost for R of them is:
R*$6.50
We know that he wants to spend less than $39, then we have the inequality:
D*$4.25 + R*$6.50 < $39
And we also know that he wants to buy at least, 4 arrangements, then:
D + R ≥ 4
Now we have a system of inequalities:
D + R ≥ 4
D*$4.25 + R*$6.50 < $39
This has quite a few solutions, for example, he could buy 3 arrangements of daisies and 2 of roses, the total cost would be:
3*$4.25 + 2*$6.50 = $25.75, which is less than $39, and he is buying 5 arrangements, more than 4 as he wanted.
And there are a lot of other possible options.
plzzzzzzzzzzzzzzzzzzzzzzzz i spent 15 points
The Guinness book of world records states that the tallest trophy is about 270 inches. If they stacked 4 of those trophies on top of each other, how high would they be?
Answer:
1080 inches
Step-by-step explanation:
or did you need it in ft?
or another unit of measurement-
Answer:
1,080
Step-by-step explanation:
270*4
1,080
If u add the 270 four times you get 1,080
Evaluate 5x + 3 when x=6
Answer:
33
Step-by-step explanation:
5(6) + 3
30 + 3
= 33
For a school picnic, leslie ordered a box of fresh-baked gingerbread cookies and sugar cookies. She got 60 cookies in all. 15 of the cookies were gingerbread. What percentage of the cookies were gingerbread.
Answer:
Pretty sure 25%.
Step-by-step explanation:
First, you would need to see how many times 60 goes into 100, because a percent is ALWAYS over 100. You should get an answer of 1.66666667. Then you if you multiply it to one of the numbers then you have to do it to the other number. So, you would do 15 times 1.66666667. You would get 25. So, that would be 25 over 100 or 25/100. And 25 over 100 is 25%.
I hope I helped! :) Sorry if it's wrong :(
4xi + 5yi^8+ 6xi^3 + 2yi^4
Answer:
The correct answer is,
[tex]7y - 2ix[/tex]
What is the slope of the equation? y=2/3x+4
Answer:
Slope m = 2/3
General Formulas and Concepts:
Algebra I
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define
y = 2/3x + 4
Step 2: Break Function
Identify Parts.
Slope m = 2/3
y-intercept b = 4
help plissssssssssssssssssssss
Answer:
......can u tranlate it?
Geometry help please !!! I need this for extra credit in school
Answer:
I believe it is y = -3x + 2
Step-by-step explanation:
Can someone help me please?? You buy 3 pairs of jeans for $35.95 each and get a fourth pair for free. What is your cost per pair of jeans?
Answer:
3x35.96= $107.88
If you get a 4th one for free
107.88/4 = $26.97 each
Step-by-step explanation:
Pls help and show workings. Best get brainiest
Answer:
∠ EBF = 40°
Step-by-step explanation:
Given BF bisects ∠ CBE , then
∠ CBF = ∠EBF , substitute values
7x - 2 = 6x + 4 ( subtract 6x from both sides )
x - 2 = 4 ( add 2 to both sides )
x = 6
Thus
∠ EBF = 6x + 4 = 6(6) + 4 = 36 + 4 = 40°
Please help.
Mary is currently 14 years older than her friend Courtney. In 5 years she will be 2 times as old as Courtney. Let x be Courtney’s age and solve for both of their ages.
How old is Courtney?
Answer:
x = 19
Step-by-step explanation:
x = Courtney's current age
14+x = Mary's current age
Mary's current age: 14 + 19 = 33
14 + x + 5 = 2x
19 = x
Which expression is equivalent to 4x-5? select all that apply
A. 3(2x-5) - 2(x-5)
B. 3x-2 - (3-x)
C. 7x+1 - 3(x+2)
D. 4(2x-1) - 2(2x-1)
Answer:
A&C
Step-by-step explanation:
15 = 5/ 3(x + 12) solve for x in simplest form
Answer:
x= -10 1/5 or -10.2
Step-by-step explanation:
Given f(x)=x^3+5x+k, and x+2 is a factor of f(x), then what is the value of k?
Answer: Hopes this helps
Step-by-step explanation:
SOMEONE PLEASE HELP !!!!!
Answer:
I can't see the pictures clearly but its between Option A and Option C
Step-by-step explanation:
[tex]\frac{y^{2}-y^{1} }{x^{2}-x^{1} }=\frac{60-20}{42-14}=\frac{40}{28}=\frac{20}{14}=\frac{10}{7}[/tex]
Slope = [tex]\frac{10}{7}[/tex]
[tex]y-y_{1}=m(x-x_{1} ) \\\\y-20=\frac{10}{7}(x-14)\\\\y-20=\frac{10}{7}x-20\\\\y=\frac{10}{7} x[/tex]
y-intercept = origin (0, 0)
How much is 1232323 divided by 232 x 3
This sounds crazy but its on my test..
Ly.
100 poins
ANSWER -
1232323 ÷ 232 x 3 = 15935.2112069
It is cray cray lol.
Plz give brainliest I would rlly appreciate it :)
Solve The Equation
1/7 (63n - 77) = -11 + 9n
A. No Solution
B. n = 0
C. Infinite Solutions
D. n = 11/9
E. n = -11/9
Answer:
C. Infinite Solutions
Step-by-step explanation:
In order to solve this we fist have to simplify the equation so we do the following:
[tex]\frac{1}{7}(63n -77) = -11 + 9n\\\\(\frac{1}{7})(7)(63n - 77) = (7)(-11 + 9n) \\\\63n - 77 = -77 + 63n\\63n - 77 = 63n - 77[/tex]
From here we know that any value of n is the solution of this equation so the answer is option C.
1. 2.5 + (-7.25)=
2. -9.7161 (-3.212)=
3. (-7) x (-5)=
4. 3 x (-6)
Answer:
Step-by-step explanation:
1. 2.5+(-7.25)=2.5-7.25= -4.75
2. -9.7161-3.212=-129281
3. -7 x(-5)=35
4.= -18
(4x²-23x-16) : (x+5)
Answer:
4x^3+26x^2-39x-195
Step-by-step explanation:
Answer:
-22x + 4x²- 11
Step-by-step explanation:
1(4x²-23x-16) (x+5)
4x²-23-16 + x +5
-23+ x +4x² - 16+5
-22x + 4x² - 11
Evaluate this expression if r = 2, t = -7, and u = -5
3(r+u)
Answer:
the answer is -9
Step-by-step explanation:
3(2 - 5)
6 - 15
-9
______________________________
1.) Fill in the given variables into a new equation: [tex]r=2[/tex][tex]t=-7[/tex][tex]u=-5[/tex][tex]3(2+(-5))[/tex]- We do this since it gives us the missing variables, which makes it so we can solve it like any regular equation.
Equation at the end of Step 1:
[tex]3(2+(-5))[/tex]2.) Subtract 5 from 2:[tex]2-5=-3[/tex]- We do this because we need 1 number, not 2 at the end.
Equation at the end of Step 2:
[tex]3(-3)[/tex]3.) Multiply 3 and −3:[tex]3[/tex] × [tex]-3=-9[/tex]______________________________
Simplify by combining like terms: 3e - 19 - 7e +10
Answer:
-4e-9
Step-by-step explanation:
3e-19-7e+10
3e-7e-19+10
-4e-9
The simplified expression is -4e - 9.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
3e - 19 - 7e + 10
Combine like terms.
(3e - 7e) - 19 + 10
-4e - 9
Thus,
The final expression is -4e - 9.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ2
Please answer this if you can tysm
Answer:
78.5in
Step-by-step explanation:
C= 2(pi)r
C= 2 x 3.14 x 12.5
C= 78.5in
Answer:
78.5
Step-by-step explanation:
To find circumference, you need to multiply radius (r) times pi (3.14 or 22/7) times 2. So, you would do 12.5 times 2 times 3.14. You would get 78.5.
Hope I helped!! :) Have a good day/night.
The trapezoid consists of a triangle and a parallelogram. The area of the trapezoid is 48 square feet. Find the length of the base of the triangle.
Answer:
4ft
Step-by-step explanation:
10 cm
6.5 cm
b) Find the total surface area of the cylinder.
Give your answer to 3 significant figures.
Please help!!
Graph the geometric sequence 6, 12, 24, 48
Answer:
(1, 6) (2, 12) (3, 24) (4, 48)
If you have to continue to graph, multiply your y value by 2 and just add 1 to your x value. Hope this helps.
-4=2/3x solve the equation for the value of the variable show all work please please solve this problem and thanks:)
Step-by-step explanation:
-4=2/3x
-4/1=2/3x
cross multipy,
-4 × 3x = 2 × 1
-12x = 2
x=-2/12
x=-1/6