Answer:3
Step-by-step explanation:
23-8= 15
15/5=3
Makiyha Martin
Janice bought a computer. She paid $780.00 plus sales tax. The sales
tax was 4%. How much did she pay in sales tax?
Answer:
$31.20
Step-by-step explanation:
1. Calculate the tax amount. To do this, you multiply the price by the tax rate.
$780 x 4% = $31.20
The total tax paid was $31.20
Answer:
B
Step-by-step explanation:
janice got ripped off buying a computer for $780.
she could have easily built her own computer with similar specs for less money or use the same amount of money to build a way better pc.
Round 80.49 to the nearest whole unit (ones place).
if the product of two number is 10 and the sum is 7 ,then the longest of the two number is
Answer:
5 units
Step-by-step explanation:
Step one:
Given data
Le the first number be x
and the second number be y
So
x*y= 10-----------------1
and
x+y= 7-----------------2
from eqn 1
x= 10/y
put x= 10/y in eqn 2
[tex]10/y+y= 7\\\\10/y= 7-y[/tex]
cross multiply we have
[tex]10=y(7-y)\\\\10=7y-y^2[/tex]
rearrange
[tex]y^2-7y+10=0[/tex]
the factors of the quadratic expression are
-5 and -2
[tex]y^2-5y-2y+10= 0\\\\y(y-5)-2(y-5) =0\\\\y-2=0\\\\y= 2\\\\y-5= 0\\\\y=5\\\\[/tex]
The longest side is 5 units
Complete the table of values for the function f(x) = (1/3)x for a, b, and c. x : -2, -1, 0, 1, 2. f(x) : a, b, c, 1/3, 1/9
Given:
The function is
[tex]f(x)=\left(\dfrac{1}{3}\right)^x[/tex]
To find:
The missing values for a, b, and c in the given table.
Solution:
We have,
[tex]f(x)=\left(\dfrac{1}{3}\right)^x[/tex]
At x=-2,
[tex]f(-2)=\left(\dfrac{1}{3}\right)^{-2}[/tex]
[tex]a=\left(3\right)^{2}[/tex] [tex]\left[\because \left(\dfrac{a}{b}\right)^{-n}=\left(\dfrac{b}{a}\right)^{n}\right][/tex]
[tex]a=9[/tex]
At x=-1,
[tex]f(-1)=\left(\dfrac{1}{3}\right)^{-1}[/tex]
[tex]b=\left(3\right)^{1}[/tex] [tex]\left[\because \left(\dfrac{a}{b}\right)^{-n}=\left(\dfrac{b}{a}\right)^{n}\right][/tex]
[tex]b=3[/tex]
At x=0,
[tex]f(0)=\left(\dfrac{1}{3}\right)^{0}[/tex]
[tex]c=1[/tex] [tex]\left[\because a^0=1, a\neq 0\right][/tex]
Therefore, the missing values of a,b and c are 9, 3, and 1 respectively.
Answer: below
Step-by-step explanation:
Iready: using a graph to analyze a functional relationship.
Describe the function between x = -4 and x = -1
Answer:
A
Step-by-step explanation:
Hello! The answer is linear and increasing !
Step-by-step explanation:
As you see on the graph it’s increasing ! And it’s linear !
I WILL GIVE YOU BRAINLY PLSS
The equation c = 3h + 50 is used to determine a gym membership fee. Use the
equation to find out how much it would cost if h = 10. c = total cost h =hours
A. c = $63
B. c = $160
C. c = $80
D. c = $60
PLSS SHOW YOUR WORK PLSS
Answer:
C
Step-by-step explanation:
h=10 so plug that into the given equation
c=3(10) +50
c=30+50
c=80
Answer: C, c = $80
Step-by-step explanation:
c = 3h + 50
c = 3 (10) + 50
c = 30 + 50
c = 80
The total cost is $80
Hope that helped!
HELP PLZZZ!!!!! THank u! :)
(5 screenshots included)
Step-by-step explanation:
1. f(x) = 6x - 14
Slope is the coefficient of x
Slope = 6
2. f (x) =6x+ 9 +x
f(x) = 7x +9
Slope = 7
3. The last option because it is not a line.
4. The third option. x and y do not get multiplied in linear equations.
5. The last option.
the first one is y=x
the second one is y =-x
the third one is y=0x - 2
the last one is wrong because if x is - 1 or - 2 twice, it should still give the same vue for y.
I hope this helps.
Please gimme brainliest. Thank you
Evaluate the expression 12 - 3y +420-4) for y = 3.
2
Answer:
56
Step-by-step explanation:
The laptop was marked down from $895 to $720.
Answer:
Wdym?
Step-by-step explanation:
Im confused
I’ll give Brainliest ? Please help
2.1.PS-14
Error Analysis A contractor purchases 7 dozen pairs of padded work gloves for $97.44. He
incorrectly calculates the unit price as $13.92 per pair for the expense report. What is the correct
unit price? What is the error?
The correct unit price is $
per pair
Answer:
Unit price = $1.16
His error was he divided $97.44 by 7 when in fact he should have divided 97.44 by 84
Step-by-step explanation:
7 dozen pairs
1 dozen = 12
7×12 = 84
97.44 ÷ 84 = 1.16
Select the reason why these triangles are
similar. If they are not, select "Not similar".
A. AA
B. SAS
C. SSS
D. Not similar
Answer:
The reason why these triangles are similar is;
A. AA
Step-by-step explanation:
A two column proof can be presented using the drawing of the question diagram created with Microsoft Visio as follows;
Statement [tex]{}[/tex] Reason
[tex]\overline {AB}[/tex] ║ [tex]\overline {DE}[/tex] [tex]{}[/tex] Given
∠ACB ≅ ∠DCE [tex]{}[/tex] Vertically opposite angles
∠BAC ≅ ∠DEC [tex]{}[/tex] Alternate interior angles theorem
∠ABC ≅ ∠CED [tex]{}[/tex] Alternate interior angles theorem
ΔABC ~ ΔCDE [tex]{}[/tex] By Angle-Angle (AA) similarity postulate
Therefore, the correct option is AA.
There is a vendor at a carnival selling bags of cotton candy. Each bag of cotton candy has the same cost. She starts each day with a certain amount of money to give change when necessary. After she sells a total of 12 bags, she has $128. After she sells a total of 20 bags, she has $160.
How much does the vendor charge per bag of cotton candy?
Answer:
The cost of each cotton candy bag is $4.
Step-by-step explanation:
Consider the provided information.
Let, the vendor has [tex]x[/tex] dollar at the starting of each day.
Let, the cost of each cotton candy bag is [tex]y[/tex].
Now when she sells a total of 12 bags, she has $128.
[tex]x+12y=128[/tex] .....(1)
After she sells a total of 20 bags, she has $160.
[tex]x+20y=160[/tex] ....(2)
Subtract equation 1 from equation 2.
[tex](x+20y)-(x+12y)=160-128[/tex]
[tex]8y=32[/tex]
[tex]y=4[/tex]
Hence, the cost of each cotton candy bag is $4.
A piece of stpne on Planet Y weighs seven pounds, but on Earth it weighs only 4 pounds.
What would a 130-pound Earthling weigh on Planet Y?
Answer:
227.50
Step-by-step explanation:
Translate each phrase into an algebraic inequality:
Sandro's job pays him $11.25 per hour. Last week, his gross paycheck was $405.00. How many hours did he work?
Answer:
I don't know how to convert it but the answer as to how many hours is 36.
PLS PLS HELP ME I WILL GIVE BRAINLIST AND SO MANY POINTS PLS HELP ME
Answer:
Both are circle equations. One is for area, one is for circumference.
Step-by-step explanation:
Both are circle equations. One is for area, one is for circumference.
Which of the following equations have infinitely many solutions?
Answer:
A
Step-by-step explanation:
The only one with nothing else in front of the X, which means you can't divide, which means it stays the same.
WILL MARK BRAINLIEST!! PLEASE HELP!!
Mr Wilkinson invests £3000 at a compound interest rate of 2.2% per annum.
He wants his investment to earn more than £800 interest.
Work out the least time, in years, that it will take
Answer: 12.1 years
Step-by-step explanation:
youd find 2.2% of 3000 which is 66 and then divide 800 by 66 to see how many years it would take to make 800 interest and you get 12.1 years. 90% sure on that answer btw
what is the surface area of this square pyramid?
Answer:
The surface area of the square pyramid is 144m²
Step-by-step explanation:
the surface area pyramid is equal to SA = B + Ph/2
Find the missing angle.
Answer:
Pretty sure it's 21 degrees.
Step-by-step explanation:
Hope I helped!! :)
Sorry if it's wrong! :(
Pls mark brainlist!!!
Hello!
The answer is 21°
Since these are vertical angles, they are equal.
Have a great day!
Graph the linear equation using intercepts. Use a graphing calculator to check your graph.
equations: y= 2/3 x (-4)
y= 1/9x (-3)
Answer:
desmos .com
Step-by-step explanation:
on election day ,register votes go to a polling place to cast their votes
Answer:
Elaborate?
Step-by-step explanation:
Uhhhhhhh im confused
Which one of the following does not describe Aaron Burr?
made unwise decisions
was wanted for murder in two states
led the Senate
had a law practice
a brilliant politician
Answer:
Aaron Burr wasn't a brilliant politician.
Step-by-step explanation:
Aaron Burr was an American politician and the third Vice President of the United States from 1801 to 1805. In 1800, he ran for the Democratic-Republicans with Thomas Jefferson. Jefferson was supposed to be president and Burr vice president, but the then presidential election rules gave Jefferson and Burr equal votes in the Electoral College, and the election was ultimately decided in the House of Representatives. There, it were Jefferson and Burr's political rivals, the Federalists, who made the difference. Alexander Hamilton, the leader of the Federalists, eventually urged his party to back Jefferson, which helped make Hamilton and Burr deadly rivals. Burr had to settle for vice president under Jefferson.
On July 11, 1804, Burr challenged Hamilton to a duel in which Burr would fire the deadly shot. Burr was charged with murder in two states, but never prosecuted. After a short flight south, Burr returned to Washington to serve his term as vice president.
After his term, Burr was suspected of involvement in a plot to create a separate republic in the then Southwestern US, headed by himself. For this he was arrested in 1807. He was tried for treason but was acquitted. After a stay abroad, Burr returned to New York in 1812 and resumed his career as a lawyer. He died in 1836 at the age of eighty and was buried in Princeton, New Jersey.
Selecting an SUV with a blue exterior?
1/12 is the answer there wasnt much specified but thats what i came up with and btw if your just asking a question i honesty dont think blue looks good on a suv :)
Answer:
yes
Step-by-step explanation:
please help if you can
Answer:
No its not
hope it helps.
Identify the slope and y-intercept of the equation.
y= 2x - 2
slope:
y-int:
Answer:
Slope: 2
y-intercept: (0, -2)
Step-by-step explanation:
The equation y=mx+b represents slope-intercept form. M = Slope, and B = The y-intercept.
Answer:
slope- 2
Y-intercept(0,-2)
Step-by-step explanation:
Which equation is the slope-intercept form of the line that passes through (1, 2) and is parallel to the graph of y = 8/3x?
Answer:
5
Step-by-step explanation:
it is five
please help im not that good during this online
Answer:
The angle is 50 degrees.
can i have some help please( BRAINLLEST)
Answer:
2
-3
same thing
Step-by-step explanation:
Need Help!!!!!!!!!!!!!!
Answer:
Option a. id have other relations for them, but they are not listed, so their ya go.
Step-by-step explanation:
Answer:
You add 5 to get from x to y
Step-by-step explanation:
10+5 =15
13+5 = 18
16+5 = 21