Answer:
90%
Step-by-step explanation:
De la pregunta anterior, se nos ha dado la fracción de razas alienígenas que piensan que invadir la Tierra es una mala idea, que es = 9/10
El porcentaje se calcula como:
9/10 × 100
= 90%
Por lo tanto, el porcentaje de razas alienígenas que piensan que invadir la Tierra es una mala idea es del 90%.
Simplify.
24x2/
23x6
Answer:
16/23
Step-by-step explanation:
well,
24 x 4 = 96
23 x 6 = 138
96/138 = 16/23
24×2/23×6
48/138
=0.3380
There was 4/5 of a cake sitting on the counter. Daryl ate 1/3 of the left over cake. How much cake was left over after he ate? *
Answer:
[tex]\bold{\dfrac8{15}}[/tex] of the cakeStep-by-step explanation:
[tex]\dfrac45-\dfrac13\cdot\dfrac45=\dfrac{4\cdot3}{5\cdot3}-\dfrac4{15}=\dfrac{12}{15}-\dfrac4{15}=\dfrac8{15}[/tex]
Worth 25 points!
Simplify these equations with steps please.
√-48
√-63
√-72
√-24
√-84
√-99
Answer:
1) [tex]\sqrt{-48}=4\sqrt{3} \ i[/tex]
2) [tex]\sqrt{-63}=3\sqrt{7} \ i[/tex]
3) [tex]\sqrt{-72}=6\sqrt{2} \ i[/tex]
4) [tex]\sqrt{-24}=4\sqrt{6} \ i[/tex]
5) [tex]\sqrt{-84}=2\sqrt{21} \ i[/tex]
6) [tex]\sqrt{-99}=3\sqrt{11} \ i[/tex]
Step-by-step explanation:
We need to simply the following :
Note: For all questions given we know that [tex]\sqrt{-1}=i[/tex] using it in all the given questions.
1) [tex]\sqrt{-48}[/tex]
Factors of 48 are: 2x2x2x2x3
[tex]\sqrt{-48}\\=\sqrt{48}\sqrt{-1} \\=\sqrt{2\times2\times2\times2\times3}\ i\\= \sqrt{2^2\times2^2\times3}\ i\\=2\times2\sqrt{3} \ i \\=4\sqrt{3} \ i[/tex]
2) [tex]\sqrt{-63}[/tex]
Factors of 63 are: 3x3x7
[tex]\sqrt{-63}\\=\sqrt{63}\sqrt{-1} \\=\sqrt{3\times3\times7}\ i\\= \sqrt{3^2\times7}\ i\\=3\sqrt{7} \ i[/tex]
3) [tex]\sqrt{-72}[/tex]
Factors of 72 are: 2x2x2x3x3
[tex]\sqrt{-72}\\=\sqrt{72}\sqrt{-1} \\=\sqrt{2\times2\times2\times3\times3}\ i\\= \sqrt{2^2\times3^2\times2}\ i\\=2\times3\sqrt{2} \ i \\=6\sqrt{2} \ i[/tex]
4) [tex]\sqrt{-24}[/tex]
Factors of 24 are: 2x2x2x3
[tex]\sqrt{-24}\\=\sqrt{24}\sqrt{-1} \\=\sqrt{2\times2\times2\times3}\ i\\= \sqrt{2^2\times2\times3}\ i\\=2\sqrt{2\times3} \ i \\=2\sqrt{6} \ i[/tex]
5) [tex]\sqrt{-84}[/tex]
Factors of 84 are: 2x2x3x7
[tex]\sqrt{-84}\\=\sqrt{84}\sqrt{-1} \\=\sqrt{2\times2\times3\times7}\ i\\= \sqrt{2^2\times3\times7}\ i\\=2\sqrt{21} \ i[/tex]
6) [tex]\sqrt{-99}\\[/tex]
Prime factors of 99 are: 3x3x11
[tex]\sqrt{-99}\\=\sqrt{99}\sqrt{-1} \\=\sqrt{3\times3\times11}\ i\\= \sqrt{3^2\times11}\ i\\=3\sqrt{11} \ i \\=3\sqrt{11} \ i[/tex]
Answer two questions about Equations AAA and BBB: \begin{aligned} A.&&3(x+2)&=18 \\\\ B.&&x+2&=6 \end{aligned} A. B. 3(x+2) x+2 =18 =6 1) How can we get Equation BBB from Equation AAA? Choose 1 answer: Choose 1 answer: (Choice A) A Add/subtract the same quantity to/from both sides (Choice B) B Add/subtract a quantity to/from only one side (Choice C, Checked) C Multiply/divide both sides by the same non-zero constant (Choice D) D Multiply/divide only one side by a non-zero constant
Answer:
C Multiply/divide both sides by the same non-zero constant
Step-by-step explanation:
Given
[tex]A:\ 3(x + 2) = 18[/tex]
[tex]B:\ x + 2 = 6[/tex]
Required
How to get B from A
It can be seen that B is a factor of A.
And to get B from A, all you need to do is divide both sides of A by 3.
i.e.
[tex]\frac{3(x+2)}{3} = \frac{18}{3}[/tex]
[tex]x+2 = 6[/tex]
Hence, from the list of given options.
Option C answers the question because 3 is a non zero constant and both sides of the equation were divided by 3
The Jones family spends $600 per month on groceries for their family. If this is 15% of their monthly budget, then what is their monthly budget?
Answer:
hi whats up
Step-by-step explanation:
Answer:
$4000
Step-by-step explanation:
$600 = .15x where x is the total monthly budget
x = $600/.15
x = $4000
Pahola invests $3,500 in a money market account.The simple interest rate on her investment is 3.65%.How much will pahola's account be worth in 4 years?
Given:
Principal = $3500
Rate of simple interest = 3.65% = 0.0365
Time = 4 year
To find:
The amount.
Solution:
The formula for simple interest is
[tex]I=P\times r\times t[/tex]
where, P is principle, r is rate of interest and t is time in years.
Substituting P=3500, r=0.0365 and t=4, we get
[tex]I=3500\times 0.0365\times 4[/tex]
[tex]I=511[/tex]
Now,
[tex]Amount=P+I[/tex]
[tex]Amount=3500+511[/tex]
[tex]Amount=4011[/tex]
Therefore, the amount after 4 years in pahola's account is $4011.
Write the expanded form of the expression
-6.4(-n+2+4.9n)
Answer:
6.4n - 12.8 - 31.36n
Step-by-step explanation:
multiply each term by -6.4
50POINTS!!!!! HELP ASAP I ALREADY HAE HIS OVER DUE
1. Peter works as a delivery person for a bike shipping company. The graph shows a linear model for his delivery times on different days. Peter’s Deliveries
(a) What is the equation of the line, first written in point-slope form and then written in slope-intercept form? Show how you determined the equation. (b) Based on the linear model, predict how long it initially took Peter to deliver his packages (y-intercept). Approximately how much did his delivery time decrease per day (slope)? Complete sentences
Answer:
y - 12 = -3 (x - 6)
y = -3x +6
6 minutes
The delivery times decreased by 3 minutes each day
Step-by-step explanation:
Point Slope:
Let's pick a point first (6,12)
The Slope of the line is -3
y - y1 = m (x - x1)
y - 12 = -3 (x - 6)
Slope-intercept:
The y-intercept is not shown on the graph but we can turn the point slope form of the equation to slope-intercept
y - 12 = -3x + 18
y = -3x +6
y-intercept:
y = mx + b
y = -3x + 6
m = 6
6 minutes
Slope:
we already know the slope is 3
The delivery times decreased by 3 minutes each day
What is the coefficient on x in the product of (3x+2)(x+4)?
Answer:
3
Step-by-step explanation:
Answer: i guess 3
Step-by-step explanation:
What is 7 25 written as a decimal?
Answer:
.725 or if its a whole with a decial 7.25 or 72.5
Step-by-step explanation:
Answer:
0.28
Step-by-step explanation:
i just took the assignment
i hope it helps :3
Somebody please help not that much time left
I need help on both please and thank youuu
I’m thinking it’s 3-3=0 but that will leave me to no answer help me pls
Answer:
2 1/4
Step-by-step explanation:
in the diagram O is the center of the circle XY is a diameter
help and explain please
also giving a BRAINLIEST!
Answer:
see explanation
Step-by-step explanation:
The angle at the circumference b , is half the angle subtended at the centre by the arc XZ, that is
b = 0.5 × 72 = 36
OZ and OX are congruent ( both radii of the circle )
Thus Δ OXZ is isosceles with base angles congruent, thus
a = [tex]\frac{180-72}{2}[/tex] = [tex]\frac{108}{2}[/tex] = 54
∠ XZY = 90° ( angle in a semicircle is right )
Write an equation of the line in slope-intercept form.
y=
Use the following pattern to answer the questions.
24.3, 24, 23.7, 23.4, _____, _____
Part A
What is the rule for the pattern?
A.
Add 0.3 to each term.
B.
Subtract 0.3 from each term.
C.
Add 0.03 to each term.
D.
Subtract 0.03 from each term.
Part B
Complete the next two terms in the pattern.
24.3, 24, 23.7, 23.4,
Choose...
,
Choose...
Can someone help me? In this net, the two triangles are right triangles. All quadrilaterals are rectangles. What is its surface area in square units? Do not include units (square units) in your answer.
Answer:
Net Area = 168
Step-by-step explanation:
See attachment for complete question
I'll make reference to the attachment, when needed.
The shapes that make up the net are labelled 1 to 5.
So, to calculate the surface area of the net, we simply calculate the surface area of each label.
Label 1: Rectangle
Area = Length * Width
Area = 10 * 5
Area = 50
Label 2: Rectangle
Area = Length * Width
Area = 8 * 5
Area = 40
Label 3: Rectangle
Area = Length * Width
Area = 6 * 5
Area = 30
Label 4: Triangle
Area = ½Base * Height
Base = 6 and Height = 8
So:
Area = ½ * 6 * 8
Area = 24
Label 5: Triangle
Area = ½Base * Height
Base = 6 and Height = 8
So:
Area = ½ * 6 * 8
Area = 24
So, the net area is the summation of the calculated areas of label 1 to 5
Net Area = 50 + 40 + 30 + 24 + 24
Net Area = 168
Leah is creating satin bows for a wedding. From a 15-meter-long ribbon, she first cuts a piece meters long. Then she cuts a piece meters long from the remaining ribbon. How much ribbon does Leah have left? A. 10 meters B. 25 meters C. 5 meters D. 12 meters
This question is incomplete
Complete Question
Leah is creating satin bows for a wedding. From a 15-meter-long ribbon, she first cuts a piece 3 4/9 meters long. Then she cuts a piece 6 5/9 meters long from the remaining ribbon. How much ribbon does Leah have left?
A.) -12 meters
B.) -5 meters
C.) 5 meters
D.) 12 meters
Answer:
C.) 5 meters
Step-by-step explanation:
From a 15-meter-long ribbon, she first cuts a piece 3 4/9 meters long. Then she cuts a piece 6 5/9 meters long from the remaining ribbon.
Step 1
3 4/9 meters + 6 5/9 meters
Least Common Denominator = 9
(3+ 6) + [ 4/9 + 5/9)
9 + [4 + 5/9]
9 + [9/9]
9 + 1
= 10 meters
This means, the total number of ribbons cut is 10 meters
The amount of ribbon Leah has left =
Initial length of ribbon - Amount of ribbon cut
= 15 meters - 10 meters
= 5 meters
Hence, Leah has 5 meters long of ribbon left
Answer:
the answer is 5 meters left
Step-by-step explanation:
what is the discimiant of 9x2+2=10x?
Answer:
28
Step-by-step explanation:
Answer: 28
Step-by-step explanation:Use the values of a b and c for the discrimiant
36 pictures for $8 or 24 pictures for $5
Answer:
36 for $8.00
Step-by-step explanation:
What’s your philosophy in life?
Answer:
The philosophy of life would include things like how you decide what is “good” and “bad”, what “success” means, what your “purpose” in life is (including if you don't think there is a purpose), whether there is a God, how we should treat each other, etc
Step-by-step explanation:
What is the solution to this system of equations?4x - 3y = -14 and x - 2y = -6
Answer:
Step-by-step explanation:
See a solution process below:
Explanation:
Step 1) Solve the second equation for
x
:
2
x
−
2
y
=
18
2
x
−
2
y
+
2
y
=
18
+
2
y
2
x
−
0
=
18
+
2
y
2
x
=
18
+
2
y
2
x
2
=
18
+
2
y
2
2
x
2
=
18
2
+
2
y
2
x
=
9
+
y
Step 2) Substitute
(
9
+
y
)
for
x
in the first equation and solve for
y
:
4
x
+
3
y
=
−
13
becomes:
4
(
9
+
y
)
+
3
y
=
−
13
(
4
×
9
)
+
(
4
×
y
)
+
3
y
=
−
13
36
+
4
y
+
3
y
=
−
13
36
+
(
4
+
3
)
y
=
−
13
36
+
7
y
=
−
13
−
36
+
36
+
7
y
=
−
36
−
13
0
+
7
y
=
−
49
7
y
=
−
49
7
y
7
=
−
49
7
7
y
7
=
−
7
y
=
−
7
Step 3) Substitute
−
7
for
y
in the solution to the second equation at the end of Step 1 and calculate
x
:
x
=
9
+
y
becomes:
x
=
9
−
7
x
=
2
The solution is:
x
=
2
and
y
=
−
7
or
(
2
,
−
7
)
The solution is:
x
=
2
and
y
=
−
7
or
(
2
,
−
7
)
Increase £2193.67 by 18.5% Give your answer rounded to 2 DP.
Grant saved $1,325 to purchase a lawn tractor that costs $1,600. Last month the tractor was on sale for 20% off. Grant did not buy the tractor last month because he spent $360 to go bungee jumping. Decide if the decision is financially responsible.
Answer:
No, he is not financially responsible
Step-by-step explanation:
Given that:
Amount saved for tractor purchase = $1325
Original cost of tractor = $1600
Amount spent on bungee jumping = $360
Discounted price of tractor :
$1600 - (1600 * 0.2) = $1280
Saved amount left after bungee jumping :
$1325 - $360 = $965
The saved amount had exceeded the discounted price, hence, the discount served as an opportunity to make the purchase, However, spending $360 from the saved amount meant that the amount left could not afford the tractor despite the discount. Hence, Missing out on such opportunity due to jumping shows lack of financial responsibility.
PLEASE HELP ME ANSWER THESE 2 QUESTIONS PLEASE PLEASE PLEASE ASAP
Answer:l
Step-by-step explanation:
Leon receives a birthday gift of $50 from his parents. Each week he saves $5.00. How many weeks will it take for him to save $120? Select and equation from below that will help him determine how much he needs to save every week to save $120.00.
A) 5x + 50= 120.00
B) 50x +5.00 = 120
C) 120x + 50= 1200.00
D) 5x + 120.00= 50.00
Answer:
14 weeks. the equation would be a.
Step-by-step explanation:
120-50=70 70/5=14 it will take him 14 weeks to get 120 if he saves 5 a week on top of the additional 50 he already has.
Answer:
14 weeks
Step-by-step explanation:
find the side length of triangle.
Answer:
x=4
Step-by-step explanation:
Let's solve the equation:
3x+12=4x+8
12=4x-3x+8
12=x+8
12-8=x
4=x
x=4
The way i got this answer was by solving the equation using the following steps. Since you're solving for one side and have two different equations, put an equal sign in between the two equations to get the equation set up above. Then you need to have the x variable on one side, instead of both sides, so you take 3x and subtract it from both sides, leaving x on one side, because 4x-3x is equal to 1x, or just x. Then we need to have what is not attached to a variable on the other side to make it easier to solve, so you would need to subtract 8 from both sides to get rid of the 8 on the side with the variable, because if you subtract 12 from both sides, it will just make it more confusing to solve, and then 12-8 is equal to 4, so you get x is equal to 4.
-2/3x + 3/7 = 1/2
In this problem, is X 13/21?
If X is 13/21 what is the answer to this problem?
-2/3 x 13/21 + 3/7
If X isnt 13/21, what is X?
Answer:
x = - [tex]\frac{3}{28}[/tex]
Step-by-step explanation:
Given
- [tex]\frac{2}{3}[/tex] x + [tex]\frac{3}{7}[/tex] = [tex]\frac{1}{2}[/tex]
Multiply through by 42 ( the LCM of 3, 7 and 2 ) to clear the fractions
- 28x + 18 = 21 ( subtract 18 from both sides )
- 28x = 3 ( divide both sides by - 28 )
x = - [tex]\frac{3}{28}[/tex]
7x {(7+7)} divided by 7}
Answer: 2
Step-by-step explanation:
What is (3x2+x-1)(x^4-2x+1)
Answer:
3
x
6
+
x
5
−
x
4
−
6
x
3
+
x
2
+
3
x
−
1
Step-by-step explanation:
simp
Answer: =3x^6 + x^5 − x^4 − 6x^3 + x^2 + 3x − 1
Step-by-step explanation: