Answer:
y=-4x+2
Step-by-step explanation:
Wich is the correct simplified form of the expression
A
B
C
D
Solve each of the following inequalities:
(if you could ,pls show me the steps.im kinda clueless in this topic)
1-) 15 + 3x < 21
2-)18 ≤ 7y + 4
3-) 19 - 4x ≥ 27
Answer:
1.x=12
2.y=2
3.x=2
Step-by-step explanation:
Solving an Inequality with No Solution
Write the inequality.
Distributive Property
Subtract 8x from each side
Simplify.
Mrs.Doggendorf drove 45 miles and used 3 3/4 gallons of gas. Her sister Kelly, drove 85 miles and used 8 2/3 gallons of gas. Which driver used fewer gallons of gas per mile
Answer:
Mrs.Doggendorf has fewer gallons per mile
Step-by-step explanation:
Mrs.Doggendorf drove 45 miles and used 3 3/4 gallons of gas
The miles per gallon is
convert 3 3/4 gallons to simple fraction= 15/4 gallons
miles per gallon= 45/15/4
miles per gallon= 45*4/15
miles per gallon= 12 miles per gallon
gallons per mile= 1/12
Kelly, drove 85 miles and used 8 2/3 gallons of gas
convert 8 2/3 gallons to simple fraction= 26/3 gallons
miles per gallon= 85/26/3
miles per gallon= 85*3/26
miles per gallon=9.80 miles per gallon
gallons per mile= 1/9.80
Hence Mrs.Doggendorf has fewer gallons per mile
Stephanie put $80 in her bank account when she was 5
years old. The bank gave her a simple interest rate of 2.1%.
Does she have enough money to buy a TV for $1,000 after
leaving her money in the bank for ten years?
Answer:
Mynd44
Step-by-step explanation:
Here, we want to check if the amount of money saved is enough to
by a tv
Mathematically, we have the simple interest formula as follows;
I = PRT/100
I = (80 * 2.1*10)/100
I = 1680/1000 = 1.68
Hence, she will not have enough
(GIVING BRAINLIEST!!)
Fred has 1/3 of a cake. He shares it among 3 of his friends. How much cake does each friend get?
A) 1/3 cake
B)1/6 cake
C) 1/9 cake
D) 1/12 cake
Answer:
1/9
Step-by-step explanation:
Divide 1/3 divided by 3 (1/9)
Keep, Change, Flip
(Keep the first fraction, change the division sign to multiplication sign, flip the last fraction)
The equation would be
1/3*1/3=1/9
Hope I helped!! :)
Pls mark brainliest if correct!!!
Answer the following question images
Answer like this
If the question number on the picture is 9 and the answer was b
9b answer like this please
Answer:
8c
9a
7c (just going in order of pictures lol)
10d
6a
Step-by-step explanation:
8. 180-68=5x+12
112=5x+12
100=5x
x=20
9. 180-100=2x
80=2x
x=40
7. 2x+x-3=90
3x=93
x=31
10. 180-70-60=8x+2
50=8x+2
48=8x
6=x
6. 3x=45
x=15
multiple questions problem please help me please will give
Answer:
42
Step-by-step explanation:
the answer is 42
Answer:
42 sandwiches
Step-by-step explanation:
10 1/2 DIVIDED BY 1/4 equals 42!
(I hoped that helped, there wasn't really any other way to explain it!)
Which of the following is true regarding the sequence graphed below?
The sequence is arithmetic because the terms have a common difference.
The sequence is arithmetic because the terms do not have a common difference.
The sequence is not arithmetic because the terms have a common difference.
The sequence is not arithmetic because the terms do not have a common difference.
Answer:
where is the graph
Step-by-step explanation:
Answer:
D.
Step-by-step explanation:
Trust me. I just had this question.
Solve the equation m=nx-p for the variable n
Is it
A n=m+p/x
B n=m+x/p
C n=m-p/x
D n=x-p/m
Show work
9514 1404 393
Answer:
A
Step-by-step explanation:
Add p to get the n term by itself, then divide by the coefficient of n.
[tex]m=nx-p\\\\m+p=nx \quad\text{add $p$}\\\\\dfrac{m+p}{x}=n \quad\text{divide by $x$}\\\\ \boxed{n=\dfrac{m+p}{x}}[/tex]
Solve for y. 3y - 2x = 9
convert these sums into decimal.
(a) (b)
3 13
--- ----
5 20
(c) (d)
13 8
----- -----
125 25
Food bill: $36 Tip: 20% Sales tax (on food only) 6%
Answer: To figure out the tip, you need to find 20% of $52.60.
0.2×52.6=10.52
Step-by-step explanation:
Answer:
After eating at your favorite restaurant, you know that the bill before tax is $52.60 and that the sales tax rate is 8%. You decide to leave a 20% tip for the waiter based on the pre-tax amount. How much should you leave for the waiter? How much will the total bill be, including tax and tip? Show work to support your answers.
Solutions
Solution: An exact answer
To figure out the tip, you need to find 20% of $52.60.
0.2×52.6=10.52
You should leave $10.52 for the waiter if you want to leave him exactly 20%.
To figure the tax, you need to find 8% of $52.60.
0.08×52.6=4.208
Next, add them up:
52.6+10.52+4.208=67.328
The total bill, including tax and tip, will be $67.33.
Solution: Estimating an answer
If you are not concerned whether you give the waiter exactly 20%, you can simply estimate the total bill. Tax and tip together are a little less than 30% and the bill is a little more than $50. Since 30% of 50 is 15, the tax and tip together are approximately $15. (Note that the exact calculation is $14.73.)
We can also estimate the total bill as $52 + $15 = $67, which is very close to the exact calculation of $67.33. This kind of estimating is a good way to check the answer to an exact calculation, and more like the way you would probably compute tax and a tip in a real restaurant.
Solution: Exact tax, approximate tip
In a real-world context, restaurant patrons generally estimate the tip, but pay the exact tax based on the calculation of their bill. Therefore, a third solution possibility is for students to estimate the tip portion of the calculations and to find the exact tax when calculating the total bill.
If you wish to estimate the tip, you can round $52.60 to $50. Twenty percent of $50 is $10. So, you would leave a $10 tip.
To figure tax, you need to find 8% of $52.60:
0.08×52.6=4.208.
Next, add the estimated tip, the calculated tax, and the pre-tax bill:
52.60+10+4.208=66.808.
The total bill will be $66.81.
Step-by-step explanation:
If x + 2y = -6 and 5x + 9y = 7 are true equations, what would be the value of
-4x – 7y?
Answer:HELP BRU
Step-by-step explanation:
Answer:
-13
Step-by-step explanation:
All things algebra unit 7 homework 6 questions 7 and 8
Find the indicated side of the
right triangle.
HELP. ASAP!
Answer:
x=9 y=12.7
Step-by-step explanation:
Side A= 9
Side B= 9
Side C= 12.7
Answer: 9/2 this answer was on my exam.
Identify the converse of the statement "A → B: If x = 3, then x + 8 = 11."
Question 3 options:
A)
B → A: If x + 8 = 11, then x = 3.
B)
∼A → B: If x ≠ 3, then x + 8 = 11.
C)
∼A → ∼B: If x ≠ 3, then x + 8 ≠ 11.
D)
A ↔ B: x = 3 if and only if x + 8 = 11.
Someone help meeee??? Pleaseeee
Answer:37
Step-by-step explanation:
(5x7)+2
35+2
=37
A recommendation for wheelchair ramps is that the rise-to-run ratio be no greater than 1:12. This ensures that the ramps are navigable by people in wheelchairs. If a business needs to install a concrete ramp to the entrance of their building, which is 12 inches off the ground, how long should the ramp be and how far out horizontally on the ground will it protrude from the building? Give answers in feet and inches, such as 5 feet, 4 inches. What percent grade is the ramp?
Answer:
a. 12 feet b. 12 feet 0.5 inches c. 8.33 %
Step-by-step explanation:
a. How far out horizontally on the ground will it protrude from the building?
Since the rise to run ratio is 1:12 and the building is 12 inches off the ground, let x be the horizontal distance the ramp protrudes.
So, by ratios rise/run = 1/12 = 12/x
1/12 = 12/x
x = 12 × 12
x = 144 inches
Since 12 inches = 1 foot, 144 inches = 144 × 1 inch = 144 × 1 foot/12 inches = 12 feet
b. How long should the ramp be?
The length of the ramp, L is gotten from Pythagoras' theorem since the ramp is a right-angled triangle with sides 12 inches and 144 inches respectively.
So, L = √(12² + 144²)
= √[12² + (12² × 12²)]
= 12√(1 + 144)
= 12√145
= 12 × 12.042
= 144.5 inches
Since 12 inches = 1 foot, 144.5 inches = 144 × 1 inch + 0.5 inches = 144 × 1 foot/12 inches + 0.5 inches = 12 feet 0.5 inches
c. What percent grade is the ramp?
The percentage grade of the ramp = rise/run × 100 %
= 12 inches/144 inches × 100 %
= 1/12 × 100 %
= 0.0833 × 100 %
= 8.33 %
Solve.
4x+3y=5
2x+3y=1
x=?
y=?
Answer:
x = 2, and y = -1. Point form: (2, -1)
Step-by-step explanation:
You solve the system of equations, by solving for one variable, and then subsitiute that variable into the other equation.
The value of x = 2
The value of y = -1
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the first equation be = A
Let the second equation be = B
Now , we have two equations
4x + 3y = 5 be equation (1)
2x + 3y = 1 be equation (2)
Now , on simplifying the equations , we get
Subtracting equation (2) from equation (1) , we get
2x = 4
Divide by 2 on both sides , we get
x = 2
Substitute the value of x in equation (1) , we get
4 ( 2 ) + 3y = 5
8 + 3y = 5
Subtract 8 on both sides , we get
3y = -3
Divide by 3 on both sides , we get
y = -1
Therefore , the value of x and y is 2 and -1 respectively
Hence , The value of x = 2
The value of y = -1
To learn more about equations click :
https://brainly.com/question/10413253
#SPJ2
whos good with "Solving Equations with Fraction and Decimal" algebra. ?
Answer:
ME!!!!!!!!!!
Step-by-step explanation:
do you have a equation for me???
If someone were to procrastinate a summative project till Saturday which is due on Monday, 1/26/2021, 11:59, how much time would they have until the project is locked?
Answer:
approximately 4 days... but ummm the 26 is a tuesday...
Step-by-step explanation:
4. What is the product of the polynomials shown below? (2x - 5)(x + 7)
Answer:
2x^2+9x-35
Step-by-step explanation:
(2x-5)(x+7)
=2xx + 2x x 7 + (-5)x + (-5) x 7
=2xx + 2 x 7x - 5x - 5 x 7
=2x^2+9x-35
Help!!
If the Harrison familys yearly income is 87,000, how much money will most likely spend on food.???
A. $3,480
B. $6,090
C. $21,750
D. $39,150
Answer: The answer is C.
Step-by-step explanation: Simple form would be to divide the $87,000 into 4, 25% is 1/4 of the pie chart, so the problem would be $87,000 divided by 4 = $21,750 on food.
Answer:
Step-by-step explanation:
Cindy spent 65.25 on ingredients for blueberries pies and 62.84 on ingredients for cherry pies each slice is 3.50$. HELP PLSS
6^2 + b^2 = 24^2 solve for b
Answer:
the answer is b=18
Step-by-step explanation:
Fill in the blanks -7 / 9 + =2
Answer: 32/9
Step-by-step explanation:
-7/9 + 16/9=1
16*2=32
32/9
Find the slope of the line | (3) | A) B) C) را با اب D)
X2 + 12x = -27
this is for a text and im a bit confused
Answer:(-3,-9)
Step-by-step explanation:
i need help with this asap pls i will give brainliest !! it’s my last question!!!! Pls
Answer:
D is the correct answer
Step-by-step explanation:
What is the slope of the line through (2, -8) and (4, 1)?
Answer:
9/2
Step-by-step explanation:
(2 , -8) ; (4,1)
Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
[tex]= \frac{1-[-8]}{4-2}\\\\= \frac{1+8}{2}\\\\= \frac{9}{2}[/tex]
