Answer:
a = (b+7)/2
Step-by-step explanation:
3a - b = a + 7
2a - b = 7
2a = b + 7
a = b+7/2
Amelia builds and sells birdhouses. The difference between the amount she sells each birdhouse for and the cost of supplies to build each birdhouse is $20. Amelia also spends $45 on tools to build birdhouses. Which equation can Amelia use to calculate the amount of money (m), in dollars, she earns from selling b birdhouses?
Answer:
[tex]m= 20b-45[/tex]
Step-by-step explanation:
Given data
The difference between the amount she sells each birdhouse for and the cost of supplies to build each birdhouse is $20
This means that her profit = $20
the number of birdhouses = b
cost of tools= $45
Hence the amount she earns from selling b houses is given as
[tex]m= 20b-45[/tex]
Problem: Prove that the quadrilateral defined by the points F(6,4), R(1,3), O(3,2), G(−2,1) is a parallelogram.
(Please explain!)
you can draw it on a graph like the one i did
then name the sides
and then measure them and make sure that parallel sides are equal
a must be = c and have same slope
and
b must be = d and have same slope
after doing that, you will know that this is a correct parallelogram
A regular heptagon has sides measuring 26 mm and is divided into 7 congruent triangles. Each triangle has a height of 27 mm. What is the area of the heptagon?
Answer:
567 square mm
because 27*7 is 189 an times 3 because each side has 3 sides so it equals to 567 square mm! :)
Step-by-step explanation:
BRAINLIEST THAT BOOM!!!!!!!!!
Jonah bought a gym membership for
$20 per month. He pays an additional
$4 each time he attends a mixed
martial arts class. He has spent $108
over the last four months.
How many mixed martial
arts classes has he
attended?
Answer:
7
Step-by-step explanation:
factor of 9x2 18x + 8?
Factor of 9x^2-18x+8
Answer:
(3x - 2)(3x - 4).
Step-by-step explanation:
9x^2-18x+8
Use the 'ac' method:
9 * 8 = 72.
We need 2 numbers whose product is + 72 and whose sum is -18
These are -12 and -6 so we rewrite the expression as:
9x^2 - 12x - 6x + 8 Now we factor by grouping:
= 3x(3x - 4) - 2(3x - 4) The 3x - 4 is common so we have:
(3x - 2)(3x - 4).
The factor of the quadratic expression 9x² - 18x + 8 will be (3x - 2) and (3x - 2).
What is factorization?It is a method for dividing a polynomial into pieces that will be multiplied together. At this moment, the polynomial's value will be zero.
The quadratic expression is given below.
⇒ 9x² - 18x + 8
Factorize the quadratic expression, then the factors are given as,
⇒ 9x² - 18x + 8
⇒ 9x² - (12 + 6)x + 8
⇒ 9x² - 12x - 6x + 8
⇒ 3x(3x - 4) -2(3x - 4)
⇒ (3x - 2)(3x - 4)
Then the factor of the quadratic expression 9x² - 18x + 8 will be (3x - 2) and (3x - 2).
More about the factorization link is given below.
https://brainly.com/question/6810544
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y - 3x = 21
x - 5y = -35
solve by substitution(show steps please)
Answer:
x=-5 y=6
Step-by-step explanation:
y-3x=21
y-3x+3x=21+3x
y=3x+21
x-5y=-35
x-5(3x+21)=-35
x-15x-105=-35
-14x-105=-35
-14x-105+105=-35+105
-14x=70
x=-5
y-3(-5)=21
y+15=21
y+15-15=21-15
y= 6
Answer:
x=5
y=6
Step-by-step explanation:
That is the answer
Point A is located at (-1.4). Point B is located at (3,2). What is the slope of the line that passes through these two points (Make sure your slope is
reduced, if possible)?
6
Answer:
Y = -1/2x + 7/2
Step-by-step explanation:
slope = -1/2
Which inequality can this number line represent?
Answer:
B.
Step-by-step explanation:
Find the value of x.
x =
Enter the number that belongs in
the green box.
Please helppp
Answer:
x=67°
Step-by-step explanation:
Sum of all angles is 180°
36°+77°+x=180°
113°+x=180°
x=180°-113°
x=67°
Bro this is right answer plzzz mark me as brainliest★
A farmer sells 9.2 kilograms of pears and apples at the farmer's market.
3/4
of this weight is pears, and the rest is apples. How many kilograms of apples did she sell at the farmer's market?
Express your answer in fraction and decimal form.
Answer:
ddd
dStep-by-step explanation:
ddd
The diagram shows part of a regular polygon.
The sides of this polygon subtend angles of 18° at the centre of the polygon.
How many sides does the polygon have?

The diagram is not drawn to scale.
Answer:
Step-by-step explanation:
The sum of central angles must equal 360 degrees.
s=360/18
s=20
Rebecca ran 21 miles in 5 hours. If she ran at a constant speed, how many miles did she run in 2 hours? 8.4 miles 42 miles 4.2 miles 1.2 miles
Answer: 8.4 miles
Step-by-step explanation:
d = rt
Solve for her rate
21 = 5r
r = 21/5
r = 4.2
Solve for if the time is 2 hours and rate (solved previously) is 4.2
d = 4.2*2
d = 8.4
The distance traveled by Rebecca in 2 hours is given by d = 8.4 miles and the speed is S = 4.2 miles / hour
What is Speed?Speed is defined as the rate of change of position of an object in any direction. Speed is measured as the ratio of distance to the time in which the distance was covered. Speed is a scalar quantity as it has only direction and no magnitude
Speed = Distance / Time
Given data ,
Let the total distance ran by Rebecca be D = 21 miles
The time taken by her to travel 21 miles T = 5 hours
So , the speed of Rebecca S = D / T
On simplifying , we get
S = 21/5
S = 4.2 miles per hour
Therefore , the speed of Rebecca is 4.2 miles / hour
Now , let the time taken be T₂ = 2 hours
So , the distance traveled in 2 hours , D = ST₂
D = 4.2 x 2
D = 8.4 miles
Hence , the distance traveled is 8.4 miles
To learn more about speed click :
https://brainly.com/question/19930939
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{(–13, 4), (7, –15), (–13, 9), (6, –12), (–18, 0)} State whether each set of ordered pairs represents a function.
Answer:
it is not a function
Step-by-step explanation:
if you can pass a vertical line through more than one point it is not a function, you have two points with the same x and different y
(-13,4) and (-13,9)
because you have two different y values for the same x it would fail the vertical line test and thus is not a function
9x-7i>3(3x-7u)I need the answer please
Step-by-step explanation:
9x-7i<3(3x-7u)=
9x-7i<9x-21u=
-7i<-21u=
i<3u
Which expression is equivalent to -2(x - 5) - 9x?
11x - 5
7x + 10
-11x - 5
-11x + 10
Answer:
-11x+10
Step-by-step explanation:
-2(x-5)-9x
Distribute:
-2x+10-9x
Combine like terms:
-11x+10
Hope this helps!
A rectangular pyramid has a base that measures 8 inches by 10 inches, a height of 12 inches, and a slant height of 15 inches. Elena calculated the volume of the pyramid as shown.
Answer:
B) elena incorrectly used slant height instead of the height
Step-by-step explanation:
THE ANSWER IS NOT B
If you can’t see the picture plz zoom in.
The box plots show Theo's math scores and language arts scores.
About 50% of Theo's scores are in which range for each subject?
60 to 85 for math: 60 to 80 for language arts
55 to 90 for math: 50 to 90 for language arts
55 to 60 for math: 50 to 60 for language arts
85 to 90 for math 80 to 90 for language arts
Answer:
B
Step-by-step explanation:
Help! 1/6 of 2 yards is how many feet?
Answer:
1 foot
Step-by-step explanation:
1 yard = 3 ft
[tex]2*1 yard= 2*3feet[/tex]
2 yards = 6 feet
[tex]\frac{1}{6}[/tex] (2 yards) = [tex]\frac{1}{6}[/tex] (6 feet)
So, [tex]\frac{1}{6}[/tex] of 2 yards is 1 foot.
What would be the new value of a after running the program
var a= 3
var b=5
a=a*b
options
8
15
3
75
Answer:
The answer is 15
Step-by-step explanation:
[tex]3 \times 5 = 15[/tex]
Solve for the unknown 7/G = 35/50
Answer:
g=10
Step-by-step explanation:
[tex]\frac{7}{g} =\frac{35}{50}\\[/tex]
We can cross multiply so that would be:
[tex]35g=50*7 \\35g=350 \\g=10[/tex]
Hope this helps and answers your question! Have a great day/night!
Answer:
g=10
Step-by-step explanation:
In the triangle below,
y = [ ? ] cm. Round to the
nearest tenth.
15 cm
35
90°
Answer:
y ≈ 12.3
Step-by-step explanation:
Using the SOH CAH TOA identity to get the value of y as shown;
sin theta = opposite/hypotenuse
opposite = y
hypotenuse = 15cm
theta = 180-(35+90)
theta = 180-125
theta = 55 degrees
sin 55 = y/15
y = 15sin55
y = 12.287
y ≈ 12.3 (to the nearest tenth)
Find the value of x.
Answer:
x=27
Step-by-step explanation:
132 + 21 = 153
180 - 153 = 27
Answer:
The inside of a triangle always equals 180 and you have angles 132 and 21. In total it's 153. Subtract 180 - 153 and you get 27.
x = 27
Describe how to find the slope and y intercept of 2x+3y=6, then describe how would you graph the line.
Answer:
Step-by-step explanation:
In order to convert the standard form equation we are given now into slope-intercept form, we need to get y on one side by itself and solve for y.
Work.
2x+3y=6
-3y -3y
2x=6-3y
-6 -6
2x-6=-3y
/-3 /3
-2/3x+2=y
y=-2/3x+2
Now that it is in slope intercept form, we can identify the y intercept and slope.
y-int=(0,2), slope=-2/3
I would graph the line by first plotting the y-intercept at the point (0,2). From there, I would plot the slope by going down 2 blocks and moving 3 blocks to the right. Then I would connect the two points with a ruler to get my line since you only need two points to create a line.
Classify the number 0 into as many categories as it belongs: Natural number, whole number, integer, or rational number.
Answer:
whole number, integer, rational number
Step-by-step explanation:
Natural Numbers to start at 1 and do not include zero.
Answer:
0.00, 0/10, zero, 0 stuff
Step-by-step explanation:
I think
math work pls help :)
Answer:
i geuss SAS is the correct answer of the question
Find the equation for the inverse function.
j(x) = 4vx+ 5 – 6
Answer:
To find the inverse, interchange the variables and solve for y.
j−1(v)=v4x+14x
Step-by-step explanation:
answers:
a) 74
b) 108
c)49
d)51
Answer:
51
Step-by-step explanation:
sum of exterior angles = 360
64 + 60 + 69 + 42 + x + x +23 = 360
2x + 258 = 360
2x = 360 - 258
2x = 102
x = 51
Answer:
The person below me is correct
Step-by-step explanation:
I will give
0.45×104
Answer:
46.8
Step-by-step explanation:
0.45*104=46.8
Please help!! It is the last problem I need to do before I am free!! Thank you!!!
Answer:
94 + 41 + 69 + 156= 360
up: 156
down: 69
180-156 = x = 24
I think
Fill in the missing numbers in these equations
(-2)⋅(-4.5)=?
(-8.7)⋅(-10)=?
(-7)⋅?=14
?⋅(-10)=90
Answer:
Step-by-step explanation:
(-2)*(-4.5)=9
(-8.7)*(-10)=87
-7x=14
x=14/-7=-2
?=-2
-----------------
-10x=90
x=90/-10
x=-9