Answer:
sorry I can't answer because I can't find the answer
Evaluate and simplify the
expression when x=10 and y=7.
?
5+ y
6x
Elizabeth wants to buy her mother a pair of pearl earrings for Mother’s Day. The earrings cost $50. The sales tax rate is 7.5%. What is the total amount Elizabeth will have to pay to purchase this gift?
Answer:
$46.25
Step-by-step explanation:
50 divided by 7.5% equals 3.75
Minus 3.75 from 50 to find the removed amount.
Answer:
Cost of the gift = $53.75
Step-by-step explanation:
Total cost of the gift = cost of the earrings + (cost of the earrings × sale tax)
Cost of the gift = $50 + ($50 × .075) 7.5% = .075
Cost of the gift = $50 + $3.75
Cost of the gift = $53.75
3x+6y=5
-3x-3y=7
Solve the systems of equations
Answer:
[tex]x = -\frac{19}{3}, y = 4[/tex] or [tex](-\frac{19}{3}, 4)[/tex]
Step-by-step explanation:
Given the systems of linear equations, 3x + 6y = 5 and -3x - 3y = 7:
Equation 1: 3x + 6y = 5
Equation 2: -3x - 3y = 7
The best method to use for the given system is the process of elimination, since the coefficients of x in both equations have opposite signs.
Step 1: Add both equations:3x + 6y = 5
-3x - 3y = 7
3y = 12
Step 2: Divide both sides by 3:[tex]\frac{3y}{3} = \frac{12}{3}[/tex]
y = 4
Step 3: Substitute the value of y into Equation 1:3x + 6y = 5
3x + 6(4) = 5
3x + 24 = 5
Step 4: Subtract 24 from both sides:3x + 24 - 24 = 5 - 24
3x = -19
Step 5: Divide both sides by 3:[tex]\frac{3x}{3} = \frac{-19}{3}[/tex]
[tex]x = -\frac{19}{3}[/tex]
Verify the validity of x and y as solutions:Verify whether the values for x and y satisfy both equations: [tex]x = -\frac{19}{3}, y = 4[/tex]
Equation 1: 3x + 6y = 5
[tex]3(-\frac{19}{3}) + 6(4) = 5[/tex]
-19 + 24 = 5
5 = 5 (True statement).
Equation 2: -3x - 3y = 7
[tex]-3(-\frac{19}{3}) - 3(4) = 7[/tex]
19 - 12 = 7
7 = 7 (True statement).
Therefore, the solutions to the given systems of linear equations are: [tex]x = -\frac{19}{3}, y = 4[/tex], or [tex](-\frac{19}{3}, 4)[/tex].
Answer:
x = -19/3, y = 4
Step-by-step explanation:
Can someone help me with this please?
Answer: Multiply 4.50 x 10= 45.00$
Step-by-step explanation:
Answer:
$7.50
Step-by-step explanation:
Divide the cost by 6 to find the price of one 1lb:
4.50 ÷ 6 = 0.75
Now multiply this by 10 to find the cost of 10lbs:
0.75 x 10 = 7.5
∴ The cost is $7.50.
Hope this helps!
PLEASE HELP NUMBER 3 ASAP ILL GIVE BRAINLIEST THANKS
Answer:
Sarah gets 2 A's.
Step-by-step explanation:
Sarah's mother gives her $10 for each B she receives. She received 3 B's, so 3x10 is 30. You subtract 80-30. You get 50. She receives $25 for each A. You then divide 50 by 25, and are left with 2. The answer is that Sarah received 2 A's on her report card.
Hope you have a great day,
Ginny
Which of the following is a run on sentence
Answer:
It is defiantly either C or D.
Step-by-step explanation:
It's not A because it has a period with means there is 2 sentences and not 1.
It's not B because it does not have multiple commas.
It might most likely be C because it has the most amount of commas.
If I'm wrong about C, than try D.
Which equation represents the line through (0,0) and (2,5)?
Answer:
Y= 5/2x+0
Step-by-step explanation:
find the slope and y intercept, which would be 5/2 and 0.
:))
One year of membership at a rec center includes a fixed monthly cost and a one-time membership fee. The following table contains some of the ordered pairs for this linear relationship between the number of months enrolled and the total cost paid for the membership.
Which graph correctly represents this linear relationship?
PLS ANSWERR AND EXPLAIN HOW YOU GOT THE ANSWE PLSSS YOULL BE MARKED AS BRAINLIST.just plss helpp
Answer:
Graf 2 is correct
Step-by-step explanation:
The correct graph that represents the linear relationship is Graph B with a positive slope.
The table shows a linear relationship between the number of months enrolled and the total cost paid for the membership.
To determine which graph represents this relationship, we need to check if the cost increases or decreases as the number of months enrolled increases. If the cost increases, it means the graph should have a positive slope. If the cost decreases, it means the graph should have a negative slope.
Let's look at the table:
Number of Months Enrolled Total Cost
1 75
2 100
3 125
As the number of months enrolled increases, the total cost increases. Therefore, the graph should have a positive slope. From the given options, the graph that correctly represents this linear relationship is Graph B, which has a positive slope.
Learn more about the topic of Linear relationship here:
https://brainly.com/question/15070768
#SPJ3
Harry buys a wand for $12.50 plus 8% tax. Ron buys his sister a diary for $13 plus 8% tax. Write the sum, in dollars, that Harry and Ron paid, including tax.
9514 1404 393
Answer:
$27.54
Step-by-step explanation:
The straightforward way to do this is to compute the tax and total on each amount, then add those together. There is an easier way.
($12.50 + 0.08·12.50) + ($13.00 + 0.08·13.00) = $12.50·1.08 +13.00·1.08
= 1.08($12.50 +13.00)
= 1.08·$25.50
= $27.54
Together, Ron and Harry paid a total of $27.54.
help me with this please
Answer:
a - 8.5ft
Step-by-step explanation:
() Using trig ratio
sin(45) = x/12
12 * sin(45) = x
x = 8.5
() Using Pythagorean theorem
*special right triangle*
Since x * [tex]\sqrt{2}[/tex] = 12
to find the legs
x = [tex]\frac{12}{\sqrt{2}}[/tex]
x = 8.5
Answer:
x ≈ 8.5
Step-by-step explanation:
You have a 45- 45 -90 right triangle. The hypotenuse = 12, the legs = x
a² + b² = c²
x² + x² = 12²
2x² = 144
x² = 72
x = [tex]\sqrt{72}[/tex]
x = 8.485 ; x≈ 8.5
or in a a 45- 45 -90 right triangle the hypotenus = the leg([tex]\sqrt{2}[/tex] )
You are given the hypotenuse = 12. Finding x value
hypotenus = leg ([tex]\sqrt{2}[/tex])
12 = x([tex]\sqrt{2}[/tex] )
12/[tex]\sqrt{2}[/tex] = x
8.485 ≈ x
8.5 ≈ x
Find the GCF of 42 and 63
Answer:
21
Step-by-step explanation:
Answer:
Step-by-step explanation:
Factor both numbers into their prime factors. Then pick the numbers that are in both.
42: 2*3*7
63:3*3*7
Which numbers are in both rows.
3 and 7
One more example would be good.
Suppose the two numbers were
45: 3*3 * 5
63:3 *3 * 7
In this example, there are two threes in both numbers. Both of them must be used for the GCF: 3*3 = 9
The GCF = 21 for your question.
1.6x – 2.88 = 3.4x
X=?????
Answer:
x = -1.6
Step-by-step explanation:
Solve for x:
Combine like terms. Here we combine 1.6x and 3.4x, obtaining 1.8x on the right side of the equation and -2.88 on the left side:
-2.88 = 1.8x
Solve for x by dividing both sides by 1.8:
x = -2.88/1.8, or x = -1.6
Please help me! Thanks in advance
Answer:
the answer is
Step-by-step explanation:
that im not good with math so good luck
(-5+2)•(-1/2)
I don’t know how to do this problem. Would anyone be able to assist? Thanks!
Answer:
3/2 or 1 1/2 or 1.5
Step-by-step explanation:
first do the equations in each parentheses:
(-5+2) = -3
(-1/2) = -1/2
then multiply both sides:
-3 • -1/2 (which is the same as -3 • -1 over 2)
= 3/2 or 1 1/2 or 1.5
(a+b)^2
(a+b)^2
(a+b)^2
(a+b)^2
Answer:
a^2 + 2ab + b^2
Step-by-step explanation:
A machine stamps 330 parts in 11 minutes. Find the unit rate in parts per hour.
Answer:
1,800 parts per hour
Step-by-step explanation:
330 parts = 11 min
330/11=30
30 parts = 1 min
60 min = 1 hour
30x60min=1,800
1,800 parts per hour
What two numbers have a product of -57 and a sum of -16?
Answer:
-19 and 3
Step-by-step explanation:
-19 x 3 = -57
-19 + 3 = -16
Answer:
Step-by-step explanation: To find the answer to "What two numbers have a product of 57 and a sum of 16?" we first state what we know. We are looking for x and y and we know that x • y = 57 and x + y = 16.
Before we keep going, it is important to know that x • y is the same as y • x and x + y is the same as y + x. The two variables are interchangeable. Which This means that when we create one equation to solve the problem, we will have two answers.
To solve the problem, we take x + y = 16 and solve it for y to get y = 16 - x. Then, we replace y in x • y = 57 with 16 - x to get this:
x • (16 - x) = 57
Like we said above, the x and y are interchangeable, therefore the x in the equation above could also be y. The bottom line is that when we solved the equation we got two answers which are the two numbers that have a product of 57 and a sum of 16. The numbers are:
5.35425
10.64575
That's it! The two numbers that have a product of 57 and a sum of 16 are 5.35425 and 10.64575 as proven below:
5.35425 • 10.64575 = 57
5.35425 + 10.64575 = 16
HOPE THAT HELP YOU PLS MARK ME BRANLITS PLSSSS
is -4.9 bigger or smaller then 3.6
Answer:
Smaller
Step-by-step explanation:
On the number line, 3.6 is on the right side while -4.9 is on the left side. The closer to the right on the number line, the bigger the number.
Answer:
its smaller because negative numbers are to the left of positive numbers and when a number is to the left of another number its less than
A standard fair dice is rolled twice. What is the probability of getting an even number on the first roll and any factor of 6 on the other?
Answer:
1/3
Step-by-step explanation:
Factors of 6 are 1, 2, 3, 6.
Even numbers are 2, 4, 6
3/6 * 4/6 = 12/36 or 1/3
It costs $7 each way to travel to work each weekday by train. What is the weekly expense each way?
Answer:
it could either be 35 or 70
Step-by-step explanation:
Amy drew a scale drawing of a shopping center. The scale she used was 1 inch : 3 feet. If a bakery in the shopping center is 16 inches wide in the drawing, how wide is the actual bakery?
Answer:
48 ft
Step-by-step explanation:
We can use ratios to solve
1 inch 16 inches
------------ = -------------
3 ft x ft
Using cross products
1 * x = 3 * 16
x = 48
48 ft
*PLEASE ANSWER!!!, I DONT GET IT!! HELP!!*
In the United States, the official poverty rate is the percentage of residents who _____.
A.) are unable to purchase food or water from local sources
B.) are earning an individual income that is less than the threshold set by government
C.) are earning a household income that is less than the threshold set by government
D.) are unable to purchase food or water anywhere in the country
Answer:
1 are earning a household income that is less than the threshold set by government
2 The Supplemental Poverty Measure includes nonmonetary benefits like housing subsidies and tax credits, while the official poverty measure does not.
3 distribution of total GDP among the working population
4 Social Security income
5 progressive tax
OCA Poverty and Resource Distribution Quick Check
The official poverty rate is the percentage of residents who are earning a household income that is less than the threshold set by the government. So, option C is correct.
What is the poverty threshold?The poverty threshold is the minimum level of income of a person in a country. It may be adjusted annually.
Poverty can be calculated by the total cost of all the basic needs or resources that an average human can consume in a year.
Poverty depends on various factors such as lack of education, economic crisis, climate changes, lack of resources, etc.
The Supplemental Poverty Measure includes nonmonetary benefits like housing subsidies and tax credits, while the official poverty measure does not.
Distribution of total GDP among the working population
The official poverty rate is the percentage of residents who are earning a household income that is less than the threshold set by the government.
Learn more about poverty;
https://brainly.com/question/10645433
A ball was thrown off of a 32 foot bridge and reached a maximum height of 50 feet after 3 seconds. How long
was the ball in the air?
a. 10 seconds
b. 6 seconds
c. 32 seconds
d. 8 seconds
Someone help please
Answer:
[tex]6^\frac{1}{10}[/tex]
What is the unit rate for canned juice, in cases per minute? Explain how you found this unit rate.
Answer:
Divide any of the numbers of cases by the corresponding time.
92/2 = 46
138/3 = 46
184/4 = 4
Step-by-step explanation:
Please help me on my exam qts please!
26) It costs a flat fee of $20 to rent a chainsaw, plus $4 per day for each day rented. Let'x' represent the number
of days rented, and 'y' represents the charge to the person renting the chainsaw. Write an equation for this
situation in y = mx + b form and then find out what the cost is if Bill rents the chainsaw for ten days.
Answer:
you should of not said exam you will prob get banned now
Step-by-step explanation:
A spinner included in a board game has four equally sized sections, as pictured below.
If a player spins and gets a 3, what is the probability they will get 3 on the next spin?
a. 0.25
b. 0.5
c. 0
d. 1
Answer:
.25
Step-by-step explanation:
Since it's a random and equal chance, you can completely disregard what he got previously. There is always a 1 in 4 chance no matter what. .025 is correct.
9514 1404 393
Answer:
a. 0.25
Step-by-step explanation:
A spinner in an algebra problem is generally considered to have equal probabilities for equal areas. It is also generally considered to have the characteristic that the value produced by the next spin is independent of the value produced by the last spin.
With those assumptions in mind, the probability of getting a 3 is always 0.25. It is never anything else with this 4-section spinner.
help plsssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
Answer:
uhhhh
Step-by-step explanation:
uhhhh
Solve:
X⁴ × X
2y⁴ x 7y
-5x⁰ x X
⅔ X⁶ x 3X
-4y¹⁰ - 2y
Answer:
.
Step-by-step explanation:
A cyclist rode at an average speed of 15 mph for 30 miles. How long was the ride? 0. 5 hours 1 hour 2 hours 3 hours.
Answer:
2 Hours
Step-by-step explanation:
using the relationship
distance = speed × time, then
time =[tex]\frac{distance}{speed}[/tex] =[tex]\frac{30}{15}[/tex] = 2 hours
