Answer:
20%Step-by-step explanation:
Step one:
given data
initial charge = $170 per hour
new charge= $136 per hour.
Required
% decrease
Step two:
% decrease = initial- new /inital charge
% decrease = 170-136 /170*100
% decrease = 34 /170*100
% decrease = 0.2*100
% decrease = 20%
The solution to a system of equations is (5,-19) choose two equations that might make up the system
A. y=-3x-6
B. y=2x-23
C. y=-7x+16
D. y=x-17
E. y=-2x-9
Answer:
E
Step-by-step explanation:
By definition,
Linear equationLinear or first degree equations are of the type ax + b = y, with a≠0, or any other equation in which when operating, transposing terms and simplifying they adopt that expression.
A solution to an equation is a number that can be entered into the variable to make a true number statement.
This caseIn this case, you know that the solution to a system of equations is (5,-19). This is, x=5 and y=-19.
Replacing the value of x in linear expressions, I can calculate the value of y and I must get that y=-19.
A. y=-3×5 -6 → y= -15 -6 → y= -21
B. y=2×5 -23 → y= 10-23 → y= -13
C. y=-7×5+16 → y= -35 +16 → y= -19
D. y=5-17 → y= -12
E. y=-2×5-9 → y= -10 -9 → y= -19
Observing the solutions obtained, the equations that satisfy the solution and make uo the system are option C. and E.
Learn more about system of equations:
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x^2y^4/z^3 / x^3z^2/y
Answer: y3/xz
Step by step is provided in the screenshot below
What is the value of s?
units
Answer:
[tex]s = 17[/tex]
hope this helps
Please give me the brainliest
Have a nice day
Rewrite 3 4/11 as an improper fraction
A.23/4
B.37/11
C.18/11
D,23/11
Answer:
B 37/11
Step-by-step explanation:
Brainliest please
Answer:
B. 37/11
Step-by-step explanation:
Multiply 3 by 11 and get 33
and add 4
37
improper fraction: 37/11
Caritas 37 coins on nickels and dimes in his piggy bank the value of the coins is $3.10 write a system of equations define the variables
Answer:
x is number of nickels
y is number of dimes
0.05x + 0.10y = 3.10
x + y = 37
After 4 hours, the number 2 is used as a factor ? Times
Answer:
2
Step-by-step explanation:
Answer: It’s 4
Step-by-step explanation:
solve please i’ll give brainliest
Answer:
3 is 60°, as well as 5 and 7 and the rest are 120°
Step-by-step explanation:
how can you use table to help solve mixture problems
Answer:
The table contains one row for each type of “item” that's being mixed, and one column for every fact you know about that item. When you're done, the table will have some holes in it, corresponding to information you don't have.
Step-by-step explanation:
You have been working hard and saving money to buy your first used car - woo hoo! But you still need more money. (It's an expensive car!) You borrow $10,000 from the bank at a 9% rate for 5 years. How much interest will you pay on this loan? Write your answer as a number with no dollar sign.
Answer:
5,000
Step-by-step explanation:
no interest♀️
can anyone please help me I'm not good at math:)
Answer:
100 per deposit
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
She starts at fifty dollars after no deposit.
After one deposit, She has $150 in her accout
150-50=100
Therefore, D is correct.
Good luck!!
What is the quotient when (x + 2) is divided into the polynomial 2x^2- 2x - 12?
A. X+ 3 with a remainder of -2
B. 2x-6 with no remainder
C. 2x-5 with no remainder
D. 2x-3 with a remainder of 5
Explain how you know that segment DE is not parallel to segment BC. (Look at the picture)
Answer:
first the segments and second they aren´t lined up all the way parallel lines run side by side forever
Step-by-step explanation:
PLEASEE HELP ILL GIVE BRAINLIEST!!
Answer:
V
Step-by-step explanation:
Pls help! For finalWhich equation can be solved to find x, the measure of to in the diagram
below?
53
A
4(1 – x) + 2 x = -3( x + 1)
Answer:
Step 1: Simplify both sides of the equation.
4(1−x)+2x=−3(x+1)
(4)(1)+(4)(−x)+2x=(−3)(x)+(−3)(1)(Distribute)
4+−4x+2x=−3x+−3
(−4x+2x)+(4)=−3x−3(Combine Like Terms)
−2x+4=−3x−3
−2x+4=−3x−3
Step 2: Add 3x to both sides.
−2x+4+3x=−3x−3+3x
x+4=−3
Step 3: Subtract 4 from both sides.
x+4−4=−3−4
x=−7
Step-by-step explanation:
Wanna chat add me as a friend OR COME TO Snap (ADAMBELAL839)
i need help! what is the y-intercept of the line 2x + 3y = 6?
Answer:
The y-intercept of this line is 2.
Step-by-step explanation:
To find where this line reaches the y axis, you simply need to assign the value 0 to x, and solve for y:
[tex]2x + 3y = 6\\2(0) + 3y = 6\\3y = 6\\y = 6/3\\y = 2[/tex]
So the y intercept of that line is 2
He national debt of a country is $298,800,000,000,000 and the population is 53,980,000. What is the debt per person? Write the answer without exponents.
Answer:
5535383.47 units
Step-by-step explanation:
Given that,
The national dept of a country = 298,800,000,000,000
Population of the country = 53,980,000
We need to find the debt per person. It can be calculated by dividing national dept of a country to its total population. Let it is d.
[tex]d=\dfrac{298800000000000}{53980000}\\\\=5535383.47\ \text{units}[/tex]
Hence, the debt per person is 5535383.47 units.
I need help with that plzzzzzz
Answer:
.25 or 25%
Step-by-step explanation:
I simplied it to 30 and 7 so then I expiremended with different percents and got that 25 percent equals 7.5 so I checked it and is 25 %
Anyways.....Im failing math :D
Answer:
SELENA IS THE BEST SINGER IN THE WORLD OTHER THAN NICKI MINAJA
Step-by-step explanation:
Answer:same ;p
Step-by-step explanation:
3n + 1 + 8n2 – 8n – 7 A) 16n? – 11n - 2 B) 16n2 – 5n - 2 C) 16n² – 5n - 6 D) 8n? – 5n - 6
Answer:
The answer is D.
Step-by-step explanation:
There is only one 8n^2, and that means that it cannot combine with anything.
Any help is appreciated I will mark you as Brinley
Answer:
1,3
Step-by-step explanation:
Which equation represents the line that passes through the points (1, 1) and
(-4, 7)?
A. 5x + 6y = 11
B. 6x + 5y = 11
C. 6x - 5y = -11
D. 5x - y = -11
PLEASE HELP
ILL GIVE YOU BRAINIEST
Answer:
Option (B)
Step-by-step explanation:
Let the equation of the line is,
y = mx + b
Here m = slope of the line
b = y-intercept
Slope of the line passing through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is,
m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Slope of the line which passes through the points (1, 1) and (-4, 7) will be,
m = [tex]\frac{7-1}{-4-1}[/tex]
= [tex]-\frac{6}{5}[/tex]
By substituting the value of m in the equation,
y = [tex]-\frac{6}{5}x+b[/tex]
Since, this line passes through (1, 1),
1 = [tex]-\frac{6}{5}(1)+b[/tex]
b = [tex]1+\frac{6}{5}[/tex]
= [tex]\frac{11}{5}[/tex]
Therefore, equation will be,
[tex]y=-\frac{6}{5}x+\frac{11}{5}[/tex]
5y = -6x + 11
6x + 5y = 11
Option B is the answer.
1. The measures of the angles in a triangle are x, 2x, and 2x - 20. What is the measure of the largest angle?
Answer:
Sum of the three angles of a triangle = 180 degrees
x+x+20+2 x=180
4 x=160
x=40
The angles are 40,(40+20).(2*40)
Answer 40,60,80
I need help with 13 and 14
Answer:
13) x = 62
14) x = 2.5
y = 5.88888889
Step-by-step explanation:
x = 62 because x is the alternate interior angle of 62.
37x - 19 = 29x + 1 (subtract 29x on both sides)
8x - 19 = 1 (add 19 on both sides)
8x = 20 (divide by 8)
x = 2.5
Plug 2.5 into 29x + 1 to find 9y + 25
29(2.5) + 1 = 73.5
9y + 25 = 73.5 (subtract 25 on both sides)
9y = 48.5 (divide by 9 on both sides)
y = 5.388888889
It all checks out!
HOPE THIS HELPS!
The function y = 0.45x + 8.8 expresses the linear relationship displayed by the scatter plot. Calculate the residual value for x = 12.
A) -0.4
B) -0.2
C) 0.2
D) 0.4
HELP!
Ella swims four times a week at her club’s pool. She swims the same number of laps on Monday, Wednesday, and Friday, and 15 laps on Saturday. She swims a total of 51 laps each week. Write an equation for the problem.
Answer: 3x + 15 = 51
x is the number of laps that she swims on Monday, Wednesday, and Friday. Since she swims the same amount, we can multiply x by three. Since Saturday gives us an explicit answer, we can just add that to the equation.
Hope this helps :)
You put a barrier around the garden and cover it with a layer of mulch. The barrier costs $1.50 per foot. One bag of mulch covers 8 square feet and costs $6. How much do you spend
Answer:
I spent $14.5 on the garden
Step-by-step explanation:
This problem can be solved by simply adding the individual costs of the items put in the garden
Cost of the barrier:
We can get the cost of the barrier by first of all determining the perimeter of land the barrier covers. We have a hint in the question given: "One bag of mulch covers 8 square feet "
We can assume the shape of the garden to be a square and the area to be 8 square feet.
The length of the garden will be = [tex]\sqrt{area}[/tex] because the garden is a square.
Length = [tex]\sqrt{8} =2\sqrt{2}[/tex]
perimeter = [tex]4 \times 2\sqrt{2}=4\sqrt{2} feet[/tex]
The barrier costs $1.50 per foot. for [tex]4\sqrt{2}[/tex] feet, =$8.5
Cost of barrier = $8.50
Cost of Mulch
The cost of mulch = $ 6
Total sum of money spent = 8.5 +6 = $14.5
Therefore, I spent $14.5 on the garden
Answer:
149.02
Step-by-step explanation:
51.72 plus 97.33 is 149.02
Combine the like terms to create an equivalent expression 11m + 1 + 3m +4
Answer:
14m + 5
Step-by-step explanation:
Answer:
14m+5
Step-by-step explanation
combining like terms when you add
11m + 3m
and
1 + 4
Simplify
5.x - 3+27 +7
Answer:
5x+31
Step-by-step explanation:
Answer:
x2+3x+9
Step-by-step explanation:
X squared plus 3x plus 9, just for clarity. I believe this is the right answer, if not let me know in the comments.
the number line at the right models an addition sentence select all the situations below could be modeled by the addition sentence.