Answer:
each card cost = $3.5
Step-by-step explanation:
to spent $15 = $8 + 2cards
$15 = $8 + 2C
$15 - $8 = 2C
$7 = 2C
C = $7 / 2
C = $3.5
therefore each card cost = $3.5
Answer:
$3.50 per card
Step-by-step explanation:
15 = 8 + 2x
x = 7 / 2
x = 3.50
Tony buys 420 candy bars, if he eats 351 bars, how much candy bars would Tony have left?
Answer:
69 candy bars
Step-by-step explanation:
No. Of candies he had=420
No. Of candies he ate=351
No of candies left=420-351=69
Answer:69 candy bars left
Step-by-step explanation:
420-351=69
Evaluate the expression x - 7. If x= 12.
19
6
17
5
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{5}}}}}[/tex]
Step-by-step explanation:
Given , value of x = 12
To find : Value of the given expression
Given expression = [tex] \sf{x - 7 }[/tex]
plug the value of x
[tex] \dashrightarrow{ \sf{ 12 - 7}}[/tex]
Subtract 7 from 12
[tex] \dashrightarrow{ \sf{5}}[/tex]
Hope I helped!
Best regards! :D
2. Which of the following is not an example of
a perfect square?
a. 9
b. 200
C. 4
d. 64
3[–x + (2 x + 1)] = x – 1
Answer:
x = -2Step-by-step explanation:
[tex]3[-x + (2 x + 1)] = x -1\\\\\mathrm{Expand\:}3\left(-x+\left(2x+1\right)\right):\quad 3x+3\\3x+3=x-1\\[/tex]
Collect like terms
[tex]3x -x =-1-3[/tex]
Add similar elements
[tex]2x = -4\\\\\mathrm{Divide\:both\:sides\:by\:}2\\\frac{2x}{2}=\frac{-4}{2}\\\\Simplify\\\\x = -2[/tex]
Nia has a membership to Apple Music. She pays $9.99 per month and $0.10 per download. If she spent $10.89 last month, how many downloads did she make last month?
Answer:
9 downloads
Step-by-step explanation:
Let's start by subtracting the initial fee of $9.99 from her total bill of $10.89.
$10.89 - $9.99 = $0.90
Now, let's divide her total cost of downloads by the individual cost of downloads.
$0.90/$0.10 = 9
Nia made 9 downloads last month.
Jada plans to serve milk and healthy cookies for a book club meeting. She is preparing 12 ounces
of milk and 4 cookies per person. Including herself
, there are 15 people in the club. A package of
cookies contains 24 cookies and costs $4.50.
A 1-gallon jug of milk contains 128 ounces and costs $3. Let n represent number of people in the
club, m represent the ounces of milk, c represent the number of cookies, and b represent Jada's
budget in dollars.
Select all of the equations that could represent the quantities and constraints in this situation.
M=12(15)
3 m + 4.5 c=b
4n = c
B= 2 (3) + 3 (4.50)
4 (4.50) = c
Answer:
4n=c
Step-by-step explanation: i took the quiz if this is wrong its prob a differnt
quiz the last person i answered got md at befor i didnt know what quiz she take a.
As the owner of a pastry shop, you decide to have a sale on brownies. You price each brownie at 37 cents. At the end of the sale, you have sold 10 trays of brownies, with 12 brownies in each tray.
How much money did you receive from selling the brownies?
Answer:
4440
Step-by-step explanation:
10×12= 120 so you would 120 brownie.
so 120 × 37 for each is 4440 so your answer would be 4440. I used desmos.com, it is very helpful. You should give it a try!
Answer:
$44.40
Step-by-step explanation:
Each tray has 12 brownies, And you sold 10 trays
calculate total amount of brownies
10 × 12 = 120 brownies
37 cents = 0.37
multiply them together
120 × 0.37 = 44.40
Thus, you recieve 44.40
Solve 2(x - 7) = 5x + 4.
Answer:
2x - 14 = 5x + 4
2x - 5x = 4 + 14
-3x = 18
x = 18/-3
x = - 6
Is 6.56 a rational number
3.4 + 2(9.7 – 4.8x) = 61.2
Answer:
x=-4
Step-by-step explanation:
Complete each step in the following solution.
Answer:
-6 and -10
Step-by-step explanation:
Three times negative two equal to negative six
Negative two plus negative eight equal to negative ten
A car's velocity changes from 1.2 m/s to 35.8 m/s in 8 seconds. What is the average acceleration of the car in m/s2?
Answer:
4.325 meters per second squared.
Step-by-step explanation:
Why can't you use algebra tiles to modle the multiplication of a linear polynomial by a quadratic polynomial
Solve for x. {x}{3}+2=-13
A _____ is a flat surface that has no thickness.
line
plane
floor
point
Answer:
plane is correct answer
eg:
a sheet of paper
it has no thickness but have surface area
hope it helped you:)
Clear x in the next ecuation 6x+2y=528
Olam, como staaaaaaaaaa¿
Given that 2 x − 2 y = 23 Find x when y = 9
Answer:
[tex]x=41/2=20.5[/tex]
Step-by-step explanation:
So we have the equation:
[tex]2x-2y=23[/tex]
And we want to find x when y is 9.
So, substitute y for 9 and solve for x:
[tex]2x-2(9)=23[/tex]
Multiply:
[tex]2x-18=23[/tex]
Add 18 to both sides:
[tex]2x=41[/tex]
Divide both sides by 2:
[tex]x=41/2=20.5[/tex]
So, our answer is 20.5
Answer:
20.5
Step-by-step explanation:
2x - 2y = 23
2x - 2(9) = 23
2x - 18 = 23
2x = 23 + 18
2x = 41
x = 20.5
What are the terms of 3x-4xy+10y+1
Answer:
[tex]3x,-4xy,10y,\text{ and }1[/tex].
Step-by-step explanation:
Single numbers, variables and product of number and variables are know as terms. In an algebraic expression each term is separated by an addition "+" sign.
The given expression is
[tex]3x-4xy+10y+1[/tex]
It can be written as
[tex]3x+(-4xy)+10y+1[/tex]
Therefore, the terms are [tex]3x,-4xy,10y,\text{ and }1[/tex].
jennifer is saving money to buy a bike the bike costs 245 she has 125 saved and each week she adds 15 to her savings how long will it take her to save enough money to buy the bike
what is the domain and range of the graph
Answer:
both are "all real numbers"
Step-by-step explanation:
The graph appears to be of a cubic polynomial (degree 3). Any polynomial has a domain of "all real numbers."
Any odd-degree polynomial has a range of "all real numbers."
Both the domain and range are "all real numbers", (-∞, ∞).
Plz help
Asppp......
Answer:
it is 7
Step-by-step explanation:
Given points are the same, so midpoint also will be the same:
[tex]M_{AB}=\left(\dfrac{x_A+x_B}2\,,\ \dfrac{y_A+y_B}2\right)=\left(\dfrac{9+9}2\,,\ \dfrac{7+7}2\right)=\left(9\,,\ 7\right)\\\\x_M=9\,,\quad y_M=7[/tex]
In a class of 28 students 4 drink skim milk 10 drink whole milk and the rest drink orange juice. What fractional part of the class drinks orange juice.
Answer: 14/28, or 1/2
explanation:
14/28 total students drink milk in general, meaning that the remainder drink orange juice. This leaves us with 14/28 students that drink orange juice, which can be reduced to 1/2.
I hope this helped! ^_^
Please help me! I will mark you brainliest! Thank you!
Answer:
multiplacation and repeated addition
Step-by-step explanation:
multiply and add repeatly.
Tom made a square measuring 8 feet by 8 feet, and had 18 friends stand inside it as if they are watching a band at a small club. Find the ratio of this number to the rectangle’s area. Choose the appropriate label for this ratio.
Answer:
The ratio of this number to the rectangle’s area is 9:32.
Step-by-step explanation:
The information provided are:
Tom made a square measuring 8 feet by 8 feet.He had 18 friends stand inside it as if they are watching a band at a small club.The area of the square is:
A = (side)²
[tex]=(8\ \text{feet})^{2}\\\\=64\ \text{feet}^{2}[/tex]
The number of people standing insider the square is:
n = 18
Compute the ration of n to A as follows:
[tex]n:A=18:64[/tex]
[tex]=\frac{18}{64}\\\\=\frac{9}{32}\\\\=9:32[/tex]
Thus, the ratio of this number to the rectangle’s area is 9:32.
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Dale is a software salesman. His base salary is S1800, and he makes an additional S90 for every copy of English is Fun he sells.
Let P represent his total pay (in dollars), and let N represent the number of copies of English is Fun he sells. Write an equation relating P to N. Then use this
equation to find his total pay if he sells 23 copies of English is Fun.
Answer:
P = 90N +1800$3870Step-by-step explanation:
For sales of N copies at $90 each, 90N is added to Dale's base salary of $1800.
P = 90N +1800
__
For N=23, Dale's salary would be ...
P = 90(23) +1800 = 2070 +1800 = 3870
Dale's total pay for selling 23 copies would be $3870.
use deductive reasoning to write a formula for the perimeter P of a regular polygon with n sides, where each side is s.
Step-by-step explanation:
If each side is s and the regular polygon has n sides, then the perimeter P must be n * s.
Equation for perimeter of regular polygon = ns
Given that;
Number of sides of regular polygon = n
Length of each side = s unit
Find:
Equation for perimeter of regular polygon
Computation:
Perimeter of regular polygon = [Number of sides of regular polygon[[Length of each side]
Equation for perimeter of regular polygon = [n][s]
So,
P = ns
Learn more:
https://brainly.com/question/17679823?referrer=searchResults
Vectors: A boat moves through the ocean on a foggy day. The boat is pointing North and can typically move at a speed of 12.8 m/s in calm waters. The boat travels through water where there is a 5.9 m/s current flowing to the East. What is the speed of the boat relative to a stationary observer on land? __m/s Part 2 The boat turns to face directly West. Now how fast is the boat moving relative to land? __m/s
Answer:
1.) 14.09 m/s
2.) 6.9 m/s
Step-by-step explanation:
Given that the boat is pointing North and can typically move at a speed of 12.8 m/s in calm waters. The boat travels through water where there is a 5.9 m/s current flowing to the East.
The speed of the boat relative to a stationary observer on land will be achieved by using pythagorean theorem
V^2 = 12.8^2 + 5.9^2
V^2 = 198.65
Square root both sides
V = 14.09 m/s
2.) If the boat turns to face directly West.
Since the boat can move at speed 12.8 m/s in a calm water, the speed of the boat if it face west will be
12.8 - 5.9 = 6.9 m/s
Therefore, the boat is moving relative to land at 6.9m/s
3. There are 24 girls and 36 boys in Yuki's
science class. Given this information,
answer the following questions:
a) What is the ratio of girls to boys?
b) Girls make up what percent of the
class (round to nearest whole
percent)?
c) Yuki herself makes up what percent
of the class (round to nearest
hundredth)?
Answer:
a) 24:36 simplified: 2:3
b) 40%
c) 1%
Step-by-step explanation:
b) total people:
24 + 36= 60
24/60 = 0.4 40%
c) 1/60 = 0.01
01%
simplify the ratio 15:27
Answer:
Step-by-step explanation:
15/27
15 divide by 3 out of 27 divide by 27
5/9= 5:9
Ratio = 15 : 27
= 5 : 9
( just divide both by 3 )
List the single-digit numbers that are divisors of 420.
Answer:
It is divisible by 1,2,3,4,5,6 and 7.