Answer:
b = 2 or b = -2Explanation:
|4b + 4| = |2b + 8|
Solve absolute value
|4b + 4| = |2b + 8|
Either 4b + 4 = 2b + 8 or 4b + 4 = −(2b + 8)
4b + 4 = 2b + 8 (Possibility 1)
4b + 4 − 2b = 2b + 8 − 2b (Subtract 2b from both sides)
2b + 4 = 8
2b + 4 − 4 = 8 − 4 (Subtract 4 from both sides)
2b = 4
2b / 2 = 4 / 2 (Divide both sides by 2)
b = 2
4b + 4 = −(2b + 8) (Possibility 2)
4b + 4 = −2b − 8 (Simplify both sides of the equation)
4b + 4 + 2b = −2b − 8 + 2b (Add 2b to both sides)
6b + 4 = −8
6b + 4 − 4 = −8 − 4 (Subtract 4 from both sides)
6b = −12
6b / 6 = -12 / 6 (Divide both sides by 6)
b = -2
b = 2 or b = -2Solve the system by substitution. Check your solution. A minus 1.2 b = negative 3. 0.2 b + 0.6 a = 12 a. (15, 15) c. (13, 12) b. (10, 12) d. (7, 9)
Answer:
The answer to the question is -1.32
Step-by-step explanation:
The first step will be to write out the equation that we are working with:
This equation is
[tex]0.2b + 0.6a = 12[/tex]
The next step is to write out the values of the figures that we are substituting:
[tex]a = -1.2 b=-3[/tex]
Substitution in mathematics can best be understood as "something being used in place of another thing". This means that wherever the first variable appears in an equation, the substituting values will replace it and multiply the number it is attached to.
In this case, we will replace the 'b' and the 'a' with the - 1.2 and - 3 respectively.
[tex]0.2(-3) + 0.6(-1.2) = -1.32[/tex]
Answer:
The answer is A. (15,15)
Step-by-step explanation:
edge21
HELP PLEASEEEE
Round three eighths to the nearest half.
Question 1 options:
0
one half
1
one and one half
Question 2 (2 points)
(10.04 LC)
Round ten twelfths to the nearest half.
Question 2 options:
0
one half
1
one and one half
Question 3 (2 points)
(10.04 LC)
Round each fraction to help you estimate the solution for the following equation:
eight tenths plus nine tenths equals
Question 3 options:
one half
1
one and one half
2
Question 4 (2 points)
(10.04 LC)
Round each fraction to help you estimate the solution for the following equation:
one sixth plus five sixths equals
Question 4 options:
0
one half
1
2
Question 5 (2 points)
(10.04 LC)
Round each fraction to help you estimate the solution for the following equation:
seven twelfths plus two twelfths equals
Question 5 options:
one half
1
one and one half
2
Question 6 (2 points)
(10.04 LC)
Round each fraction to help you estimate the solution for the following equation:
nine tenths minus four tenths equals
Question 6 options:
0
one half
1
one and one half
Question 7 (2 points)
(10.04 LC)
Round each fraction to help you estimate the solution for the following equation:
nine tenths minus eight tenths equals
Question 7 options:
0
one half
1
one and one half
Question 8 (2 points)
(10.04 LC)
Round each fraction to the nearest half and find the estimate.
two sixths plus one sixth equals
Question 8 options:
one half
1
one and one half
2
Question 9 (2 points)
(10.04 MC)
Round each fraction to the nearest half to find the estimate.
A stegosaurus eats ten twelfths of a plant and then eats two twelfths of the plant later. Estimate how much of the plant the dinosaur ate in all. Explain your thinking.
Answer:
1/2 ; 0 ; 2 ;
Step-by-step explanation:
3 / 8 to the nearest half
3/8 = 0.375
Using a number line, 0.375 is closer to 1/2 =0.5, than to 0 ; hence, 3/8 = 1/2(nearest half
2.) 2 /12 = 0.16666
2/12 = 0 (nearest 1/2)
3.) eight tenths plus nine tenths equals
8/ 10 + 9/10 = 17/10
17 /10 = 1.7
1.7 = 2 (nearest 1/2)
30 laps in 6 days = ? laps per day
Answer:
5 laps per day
Step-by-step explanation:
30 laps divided by 6 days gives you 5 laps per day.
Answer:
5
Step-by-step explanation:
30 ÷ 6 = 5
or
# of laps divided by the 6 days gives us the number of laps per day.
Hope this Helps!:)
Carl earns grades of 62, 78, 59, and 89. What is the mean of his grades?
Answer:
72 is the correct answer
A. 28
B.30
C.15
D.20
Answer: B
Step-by-step explanation:
30 times 1 equals 30 and there are no other values
10 is 60% of what number please help
Answer:
600
Step-by-step explanation:
set x as the number
x0.10 = 60
x = 60/0.10
x = 600
Answer:
For me i think its 16.67 well im not fully sure
Step-by-step explanation:
SO we have to figure out what gives us 10 and that will be represented as "x"
[tex]\frac{60}{100}[/tex] × x = 10
Multiplying both sides by 100 and dividing both sides by 60,
we have x = 10 × [tex]\frac{100}{60}[/tex] so, x = 16.67
(that's what i believe but i don't know)
6x + 9 = 27
what is x?
Jeremy received a Bill with a balance due of 25.60
Answer:
6.40$
Step-by-step explanation:
HOPE THIS HELPS
PLZZ MARK BRAINLEIST
x^2+5x+4=0 how do I factor this because Im trying to solve quadratic equations by factoring and i dont understand it
Answer:
(x + 4)(x + 1)
Step-by-step explanation:
Suppose one batch of cookies requires ⅔ cup of flour. How many batches can be made with 4 cups of flour?
Answer:
6 batches
Step-by-step explanation:
Answer:
the answer is 8/3 u have to mutplay
Step-by-step explanation:
Which of the following are solutions to the equation below?
Check all that apply.
(3x- 5)2 = 19
The formula for converting degrees Fahrenheit (F) to degrees Celsius (C) is c= 5/9 (f-32) Find C for F = 59
Answer:
(59°F − 32) × 5/9 = 15°C
Step-by-step explanation:
Simply follow the equation and you will get your answer.
WHAT IS 5.005 AS A MIX NUMBER!!! I will give you 100 points
Step-by-step explanation:
it would be like 500.5% or 1001/200
in a box of doughnuts, 4/7 of the doughnuts are chocolate and the rest are filled with jam. what is the ratio of chocolate doughnuts to jam doughnuts
explain how you will determine the area od the circle if you were given the diameter of the circle
PLEASE CAN YOU EXPLAIN LIKE A BIG PARAGRAPH OF HOW YOU WILL DO IT PLEASE RIGHT NOW LIKE A BIG PARAGRAPH THANK YOU
Answer:
Ok you're talking about "PI"
Area of a circle:
πr^2
What that basically means is
π <- That sign is 3.14
You wanna times that with the radius (r).
The radius is half of the diamater so divde the diameter by 2 then mutiply whatever u get with 3.14
Then the final step is do 3.14 x radias then times 2.
That's it :D
Hope this helps ~
PLS HELP The width of Ben's rectangular family
room is 3 feet less than the length.
The perimeter is 70 feet. What is the
length of the family room?
Answer:
19 feet
Step-by-step explanation:
The perimeter is calculated by multiplying the sum of length and width by 2
width is 3 less than length so if we call the width x the length would be x + 3
2×(x + x + 3) = 4x + 6 and
4x + 6 = 70 subtract 6 from both sides
4x = 64 divide both sides by 4
x = 16
The length is x + 3 so the answer is 19 feet
if m<y=(2x-3)°,m<z=(13x-41)°, and <a is a straight angle, find the sum of the measures of the two angles.
Answer:
[tex]Sum = (15x - 44)^{\circ}[/tex]
Step-by-step explanation:
Given
[tex]\angle y = (2x - 3)^{\circ}[/tex]
[tex]\angle z = (13x - 41)^{\circ}[/tex]
Required
Calculate the sum of the two angles
[tex]Sum = \angle y + \angle z[/tex]
[tex]Sum = (2x - 3)^{\circ} + (13x - 41)^{\circ}[/tex]
Collect Like Terms
[tex]Sum = (2x +13x)^{\circ} - (3+ 41)^{\circ}[/tex]
[tex]Sum = (15x)^{\circ} - (44)^{\circ}[/tex]
[tex]Sum = (15x - 44)^{\circ}[/tex]
Hence, the sum of the two angles is 15x - 44
Help! Will mark brainliest
Answer:
Putag Ina mo 1 +1
Step-by-step explanation:
Jajajjsjdjfufyfuchdkdc
The area of a square is 81 m2. What is an exponent to express this area? Please help!
Answer:
[tex]9^{2}[/tex]
Step-by-step explanation:
Hope that helps!
Help me pls I need help right now
Answer:
The Volume is 72 cm^3.
Step-by-step explanation:
PLEASEEEE HELPPPPPP!!!
Answer:
18
Step-by-step explanation:
-8 (6x -2) = -3x -29
Answer: X= 1
1. 16=−3x−29+48x
2. 16=45x−29
3. 16+29=45x
4. 45=45x
5. 1=x
i will really appreciate it if you guys could help me out .
Answer: he owes him 3 cents
Step-by-step explanation:
Answer:
3$
Step-by-step explanation:
you got to do 8 minus 5.
In ΔEFG, g = 4.3 cm, e = 9.1 cm and ∠F=116°. Find the length of f, to the nearest 10th of a centimeter.
Answer:
11.6
Step-by-step explanation:
The length of f of the triangle is f = 11.7 cm
What is Law of Cosines?The Law of Cosines is a mathematical formula used to find an unknown side or angle of a triangle, given the lengths of the other two sides and the angle opposite the unknown side. It is also known as the Cosine Rule.
The Law of Cosines states that for any triangle with sides a, b, and c and angle C opposite side c, the following equation is true:
c² = a² + b² - 2ab cos(C)
where cos(C) is the cosine of angle C. This formula can be rearranged to solve for any of the variables, depending on which values are known.
Given data ,
Let the triangle be represented as ΔEFG
And , the measures of the sides of the triangle are
g = 4.3 cm
e = 9.1 cm
And , measure of angle ∠F = 116°
where c² = a² + b² - 2ab cos(C)
On simplifying , we get
a² = c² - b² + 2abcos ( C )
78.26 ( cos 116° ) - 4.3² - 9.1² = f²
f² = 135.7344
Taking square roots on both sides , we get
f = 11.7 cm
Hence , the length is f = 11.7 cm
To learn more about law of cosines click :
https://brainly.com/question/30766161
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Solve by Elimination:
x - 2y = 4
X - 1y = 2
its urgent
Answer:
x = 0 and y = -2
Step-by-step explanation:
x - 2y = 4 and X - 1y = 2
you mentioned elemination aka substraction
so you when substract x - x = 0 -2y -( -y) = -y and 4 -2 = 2
so - y = 2
or y = 2
now substitute the numbers
x + 4 = 4
x = 0
and try it with one of the equation or sometimes trying on both of them can be very helpful
PLEAASSEE PLLEEAAASSSEEE SOMEONE ANSWER THIS IS URGGEENNNTTTT!!!!!!!!!!!!!!!!!!!!! I'LL EVEN GIVE YOU BRAINLIST!!!!!!!!!!!!!!!!!
Candice has a bag with 4 green, 7 orange, and 9 blue Skittles in it. She randomly selects one Skittle to eat and then another. Is this dependent or independent probability?
A. independent
B. dependent
Answer:
Step-by-step explanation:
7. Write an expression that is equivalent to
5({r - 8). State the property that justifies
your answer.
Answer:
5r - 40
Step-by-step explanation:
If you simplify 5(r - 8), you will get 5r - 40. This is called distributed property.
Hope this helps, thank you !!
William’s team won 16 games and lost 4 games. Tracey’s team won 15 games and lost 5 games. Whose team had the greater ratio of wins/losses?
Answer: William's is 16:4 and Tracey's are 15:5
Step-by-step explanation:
I don’t know how to do this o need help plz
The midpoint of AD is C. The midpoint of AC is B. If A is at (-10,4) and D is at (2,12), find the coordinates of B. Group of answer choices (-5,5) (-4,8) (-2.5,9) (7,6)
Answer:
[tex]B(x,y) =(-7,6)[/tex]
Step-by-step explanation:
Given
[tex]A = (-10,4)[/tex]
[tex]D = (2,12)[/tex]
Required
Determine the coordinates of B
C is the midpoint of AD. So, we calculate the coordinates of C, first.
[tex]C(x,y) = (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]
Where:
[tex]A = (-10,4)[/tex] --- [tex](x_1,y_1)[/tex]
[tex]D = (2,12)[/tex] --- [tex](x_2,y_2)[/tex]
So, we have:
[tex]C(x,y) = (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]
[tex]C(x,y) = (\frac{-10+2}{2},\frac{4+12}{2})[/tex]
[tex]C(x,y) = (\frac{-8}{2},\frac{16}{2})[/tex]
[tex]C(x,y) = (-4,8)[/tex]
So, the coordinates of C is (-4,8)
The midpoint of AC is B.
So, we calculate the coordinates of B using:
[tex]B(x,y) = (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]
Where:
[tex]A = (-10,4)[/tex] --- [tex](x_1,y_1)[/tex]
[tex]C(x,y) = (-4,8)[/tex] --- [tex](x_2,y_2)[/tex]
So, we have:
[tex]B(x,y) = (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]
[tex]B(x,y) =(\frac{-10-4}{2},\frac{4+8}{2})[/tex]
[tex]B(x,y) =(\frac{-14}{2},\frac{12}{2})[/tex]
[tex]B(x,y) =(-7,6)[/tex]
Hence, the coordinates of B is (-7,6)
None of the options is correct.