Answer:
−3.3
Step-by-step explanation:
Simplify the expression.
Please answer these questions.It is only two questions and they are super small.I have put the picture of the question down below.
Answer:
9. y= ¼x -5
10. y= 2x +18
Step-by-step explanation:
Slope-intercept form:
y= mx +c, where m is the slope (also known as gradient) and c is the y-intercept.
9. The given equation is already written in the slope-intercept form. The coefficient of x is ¼, thus the gradient of the given line is ¼.
Parallel lines have the same gradient and hence, gradient of line is also ¼.
Substitute m= ¼ into the equation:
y= ¼x +c
To find the value of c, substitute a pair of coordinates.
When x= 8, y= -3,
-3= ¼(8) +c
-3= 2 +c
c= -3 -2
c= -5
Thus, the equation of the line is y= ¼x -5.
10. Gradient of given line= 2
Parallel lines have the same gradient.
Thus, gradient of line= 2
Substitute m=2 into the equation:
y= 2x +c
When x= -4, y= 10,
10= 2(-4) +c
10= -8 +c
c= 10 +8 (+8 on both sides)
c= 18
Therefore, the equation of the line is y= 2x +18.
how does segment AC=CE if C is the midpoint?
Answer:
AC=CE if C is the midpoint if AC & CE are both the same lengths.
Un carpintero quiere cortar una hoja de madera de 256 cm de largo y 96 cm de ancho, en cuadrados lo más grandes posible. A) ¿Cuál debe ser la longitud del lado de cada cuadrado? B) ¿Cuántos cuadrados se obtienen de la plancha de madera?
Answer:
Kindly check explanation
Step-by-step explanation:
Given the dimension :
256 cm by 96 cm
To know the largest number of possible squares obtainable, we calculate the Greatest common factor of 256 and 96
256 : 1, 2, 4, 8, 16, 32, 64, 128, 256
96 : 2, 3, 4, 6,, 8, 16, 32, 48, 96
The greatest common factor is 32
Hence, length of side of each square = 32cm
Number of squares obtained :
Area of rectangle :
Length * width
256cm * 96cm 24,576cm²
Area of square :
s² ; s = side length
32² = 1024cm²
Number of squares :
24,576cm² / 1024cm²
= 24 squares
What is 4 - 3w + 2w I don’t understand the question please help me
Answer:
4 - w
Step-by-step explanation:
4 - 3w + 2w
First, combine like terms, which is -3w and 2w
4 - 1w
Because -1w is the same as -w, we will write that
4 - w
That is your answer because you cannot simplify this anymore. I hope this answer helps, and if you have any questions feel free to comment!
x 2 y + 2xy 2+ 3x 2 y − 6xy 2+ 4
If you simplify the answer will be
2Xy-2xy+4
Identify each pair of congruent vertical angles.
Please help! I’ll give out brainliest to whoever answers first and correctly !! :)
Answer: 1&6; 5&2; 3&8; 4&7
Here is a simple math problem for points!
Kendall is making desert baskets.
• she has 12 brownies, 30 cookies, and 42 candies
• For each type of desert, each basket must have the same number of pieces of that desert
• She must use ALL of her deserts
Answer:
Easy each basket would have 2 brownies, 5 cookies, and 7 candies which would make 6 baskets.
Step-by-step explanation:
Tomatoes are on sale for $2 a pound. Lettuce costs $1.50 per head. Josie buys several pounds of tomatoes and one head of lettuce and spends $9.50. How many pounds of tomatoes, x, did Josie buy?
idk know how to this, pls help :(
Answer:
$4
Step-by-step explanation:
Tomatos = $2x.
Lettuce = $1.50x
$9.50 = 2x + 1.50.
$8 = 2x.
$4 = x.
Hope this helped.
Abigail drew 14 hearts and 24 circles. What is the ratio of circles to hearts?
Answer: circle to hearts 24 to 14
Step-by-step explanation:
Answer:
it will be 24:14
Mai and pyira were on scooters, Mai traveled 15 meters in 6 seconds. Pyira Traveled 22 meters in 10 seconds. Who was moving faster at what this rate did Pyira scooter traveled?
Answer:
Speed of priya = 2.2 m/s
Mai was faster.
Step-by-step explanation:
Given:
Mai cover 15 meter in 6 second
Priya cover 22 meter in 10 second
Find:
Who was faster
Speed of priya
Computation:
Speed = Distance / time
Speed of mai = 15 / 6
Speed of mai = 2.5 m/s
Speed of priya = 22 / 10
Speed of priya = 2.2 m/s
Mai was faster.
LeAnn bought a total of 48 cupcakes. Each cupcake cost $0.55, including tax. Of the cupcakes she bought, 3 8 were chocolate. What was the total cost of only the chocolate cupcakes?
Answer:
Total cost= $20.9
Step-by-step explanation:
Giving the following information:
Unitary cost= $0.55
Number of chocolate cupcakes= 38
To calculate the total cost of chocolate cupcakes, we need to use the following formula:
Total cost= unitary cost*number of units
Total cost= 0.55*38
Total cost= $20.9
DUE IN MIDNIGHT which is an equation of the line parallel to y=2x-7 and passes through (-4,5)
Answer:
y=2x+13
Step-by-step explanation:
parallel lines will have the same slope. Since you still need b you plug in (-4,5) which will look like 5=2(-4)+b. then you solve for b and get 13.
translate the triange 2 units left and 1 unit up. then reflect the image in the x axis . graph the FINAL triange .
How Did They Catch the Guy Who Robbed
a Bunch of People on Mount Everest?
Answer:
He returned to the scene of the climb
Step-by-step explanation:
Can someone sum and say if hi
Answer:
yes
Step-by-step explanation:
Which of the following is the equation of a line that is perpendicular to the line given by 8x + 12y = 13 and passes through the point (6, 8)?
hheleoghelp what is the volume of the following rectangular prism?
Answer:
28 units^3
Step-by-step explanation:
The formula for finding the volume of a rectangular prism is V = lwh or V = bh
l = length
w = width
h = height
b = base
V = volume
Because we are given the base and height we will use the second formula, V =bh.
V = (8/3)(21/2)
Because we are multiplying fractions, you can just multiply across:
V = 168/6
V = 28 units^3
what is the slope of the line perpendicular to y=-5x-3
Step-by-step explanation:
The slope-intercept form is y=mx+b y = m x + b , where m m is the slope and b b is the y-intercept.
When is it best to find the average of a sample of the population? Select all that apply.
A)when there is a large amount of data in the population
B)when it is necessary to save time in the calculations
C)when there is a small amount of data in the population
D)when there is time to perform the calculations for the entire population
E)when it is easy to access the data set of the population
Answer:
A and D
Step-by-step explanation:
A hill on a hiking trail goes up to 69 feet over a distance of 138feet. Find the grade of the hill
Answer: The grade of the hill = 50%
Step-by-step explanation:
The grade is the slope( expressed as a percent). To evaluate the slope we divide the rise by the run.
Given: A hill on a hiking trail goes up to 69 feet over a distance of 138 feet.
So, rise= 69 feet , run = 138 feet.
The grade of the hill = [tex]\dfrac{rise}{run}\times100[/tex]
[tex]=\dfrac{69}{138}\times100=50\%[/tex]
Hence, the grade of the hill = 50%
Given: 3x - 14 = 43
Prove: x = 19
Step-by-step explanation:
Because you're trying to prove the value of X, you work backwards. here's what you do
When working backwards, PEMDAS becomes SADMEP
First, add 14 to 43 (57).
Then, divide 57 by 3 to get 19.
x = 19!
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
PEMDAS is the order of operation, and equals:
Parenthesis
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
First, add 14 to both sides of the equation:
3x - 14 (+14) = 43 (+14)
3x = 43 + 14
3x = 57
Next, divide 3 from both sides of the equation:
(3x)/3 = (57)/3
x = 57/3
x = 19
~
Proof: Plug in 19 for x in the equation for x:
3(19) - 14 = 43
First, multiply:
(3 * 19) - 14 = 43
(57) - 14 = 43
Next, subtract:
57 - 14 = 43
43 = 43 (True).
~
Which expression is 0.5 times as large as 342 + 156?
Answer:
(342+156)x.5= 420
Step-by-step explanation:
Please Help!!! I don’t understand this!!
Answer:
4. t ≥0
5. x>0
6. k ≤ 3
7. r ≥ 2
8. v ≥ 7
Step-by-step explanation:
I hope this helps
At the market, 8 batteries cost $10.
How much do 6 batteries cost?
Answer:
$7.50
Step-by-step explanation:
1 battery costs 10/8=5/4 dollars
(5/4)*6=15/2
15/2=7.50
Answer:
$7.50
Step-by-step explanation:
Set up a proportion and cross multiply to find your answer.
8 batteries/$10 = 6 batteries/$x
x = (6)(10)/8
x = 60/8
x = $7.50
3x + 4 = 8x - 11
Solve using properties of equality.
check your solution.
x = a
Answer:
x=3
Let me know if you need an explanation.
Answer:
x = 3
Step-by-step explanation:
Step 1. add 11 to both sides
3x + 4 = 8x - 11
+11 +11
3x + 15 = 8x
Step 2. subtract 3x from both sides
3x + 15 = 8x
- 3x -3x
15 = 5x
Step 3. divide by 5 to isolate x
15 = 5x
/5 /5
x = 5
2020-2021 T-Math-Gr7Reg-T1 and T2-CBT: Section 1 - Students may NOT use a calculator.
Question: 1-5
Marissa found
that apply.
shirt that had a 20% markdown on it. If the price of the shirt is represented by x, how much does the shirt cost (excluding tax)? Select all
x(1.00 -0.20)
X-0.80x
X-0.20
ОООООО
0.80x
x(0.20 + 1.00)
0.20x
©
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Complete Question
Marissa found a shirt that had a 20% markdown on it if the price of the shirt is represented by x how much does the shirt cost excluding tax select all that apply
select all that apply
A. 0.20x
B.0.80x
C.x-0.20
D.x-0.80x
E.x(0.2+1.00)
F. x(1.00-0.20)
Answer:
B. 0.80x
F. x(1.00-0.20)
Step-by-step explanation:
The Formula for Selling Price when you have percent markdown is;
Selling price = (1 - percentage mark down)× Original price
From the question:
Selling price= Cost of the shirt(excluding tax)
Original price = x
Percentage markdown = 20%
= 0.20
Hence,
Cost of the shirt(excluding tax)
= (1 - 20%)x
= (1 - 0.20)x
= 0.80x
Option B and F is the correct option
I need help with geometry
translation I should believe
What is the quotient in simplest form?
Three-fourths divided by StartFraction 5 Over 16 EndFraction
Answer:
option a
Step-by-step explanation:
hope this helps
Answer:
C: 2 2/5
Step-by-step explanation:
Took the test and this was the answer
Name both pairs of alternate interior angles.
Two added to three times a number m is the same as 18.
Answer:
3m+2 = 16
Step-by-step explanation: