Answer:
si por que esta bien hecha
1.Distribute
1 5n+24-4(n-3(+6-2n=105
15n+24-4n+12+6-2n=105
2.Add the numbers
15n+24-4n+12+6-2n=105
15n+42-4n-2n=105
3.Combine like terms
15n+42-4n-2n=105
9n+42=105
4.Subtract 42 from both sides of equation
9n+42=105
9n+42-42=104-42
Simplify
Subtract
9n+42-42=105-42
9n=105-42
subtract again
9n=63
Divide both sides of the equation by the same term
9n=63
9n/9=63/9
Simplify
Cancel terms that are in both the numerator and denominator
9n/9=63
n=63/9
Divide the numbers
n=7
so the answer is n=7
Can someone tell me were I went wrong?
A different camera is selling for $7.50 off the regular price. It was discounted 15%. What was the original price of the camera?
A)$112.50
B)$75.00
C)$50.00
D)$45.00
Answer:
C) $50.00
Step-by-step explanation:
$7.50 is the 15% discount
1% of the original price would be ($7.50 / 15)=0.50
100% of the original price would be 100 x 0.50 = $50.00
Y = 4X+3 and y= 2X+7 solve by using substitution
Answer:
x=2 y=11
Step-by-step explanation:
math
angle A = 18° and angle B = 25°. Find angle C.
Answer: Angle C: 137 degrees
Step-by-step explanation:
A+B+C=180
18+25+C=180
C=137
Step-by-step explanation:
triangle add U to 180
18 + 25 = 43
180 - 43 = 137 degree is c
What is the degree of 4x^3 + 2x^2 + 3x -1 *
Answer:
Hello, and welcome to brainly im gonna be your personal assistant for today your awnser to this question is easy here it is 1.
The degree is 4
2. x^3 - 4x =0
3. x-1/2=0 x-2/3=0
Step-by-step explanation:
In Coach Bryant’s math class, he had his students create a net of a cube. An example of the net is below.
Net of a cube. The measurements for each side 2.5 in.
What is the total surface area of the cube?
37.5 in2
6.25 in2
31.25 in2
60 in2
Answer:7.5 in2
Step-by-step explanation:A=6a2=6·2.52=37.5in²
Jason has 1/3 of a liter of milk. Jason divides the milk equally into 4 mugs of tea.
How much milk will Jason have in each mug?
Answer:
1/12 l
Step-by-step explanation:
Amount of milk = 1/ 3 l
No: of mugs = 4
Amount in each mug = 1/3 ÷ 4 = 1/3 x 1/4 = 1/12 l
(Hope its right!)
Answer:
They will have 1/12 of a liter of milk on each mug because you are dividing 1/3 into 4 so the denominator is multiplied by 4
which step comes first -b-2<8
Answer:
Step-by-step explanation:
Alright so the step that comes first is adding two to both sides.
Let me show you,
Step 1
-b-2<8 Add 2 to both sides
-b<10
Then you divide the sides by -1
-b<10
b>-10
Find zeros and y intercept of each function algebraically f(x)=x^3-10x^2+24x
Answer:
The zeros are 0, 4, 6.
The y-intercept is 0.
Step-by-step explanation:
f(x) = x^3 - 10x^2 + 24x
x^3 - 10x^2 + 24x = 0
x(x^2 - 10x + 24) = 0
x(x - 4)(x - 6) = 0
x = 0 or x - 4 = 0 or x - 6 = 0
x = 0 or x = 4 or x = 6
y-intercept:
Since x = 0 is a root, that means that the point (0, 0) is part of the function. That makes the y-intercept 0.
You can also solve for the y-intercept by letting x = 0 in the function and solving for f(0).
Let x = 0.
f(0) = 0^3 - 10(0^2) + 24(0)
f(0) = 0
y-intercept: 0
can anybody help? marking brainliest
Answer:
C
Step-by-step explanation:
The key here is she wants to make "at least", implying that you have an inequality. If she cecks the house 4 times plus the 2 overnight stays then she will have exactly 150, so that is the least needed to reach her goal. So at least automatically turns it into an inequality.
Find the domain and range of the function below
Basil has five numbered cards.
Two of the numbers are hidden. 4 9 9 ? ? 8
The mode of the five numbers is 8.
The mean of the five numbers is 6
c) Work out the two hidden numbers.
Answer:
The two hidden numbers are 8 and 1.
Step-by-step explanation:
Mean of a data-set:
The mean of a data-set is given by the sum of all its values divided by the number of values.
Mode of a data-set:
The mode of a data-set is the value that appears the most.
In this question:
4, 9, x, y, 8
Mode is 8 means that at least one of them must be 8, so i will say x is 8 and we have:
4, 9, 8, y, 8
The mean of the five numbers is 6
This means that:
[tex]\frac{4+9+8+y+8}{5} = 6[/tex]
[tex]29+y = 30[/tex]
[tex]y = 30 - 29[/tex]
[tex]y = 1[/tex]
The two hidden numbers are 8 and 1.
What’s the rate of 4.1(x+5)+1
Step-by-step explanation:
4.1(x+5)+1
= 4.1x + 20.5 + 1
= 4.1x + 21.5
Please help......... please
Answer:
Step-by-step explanation:
2x + 4 = 2(x + 2)
[tex]Area = \frac{1}{2}*b*h\\\\=\frac{1}{2}*(2x-1)(2x + 4)\\\\\\= \frac{1}{2}*(2x - 1)*2*(x + 2)\\\\= (2x -1)(x+ 2)[/tex]
= 2x *x + 2x* 2 + x*(-1) + 2*(-1)
= 2x² + 4x - x - 2
= 2x² + 3x - 2
can someone help me find the side of a 30 60 90 triangle
Answer:
y = 7.5
x = 7.5√3
Step-by-step explanation:
sin(30) = 1/2
cos(30) = √3/2
Above is rule
==>
y = 7.5
x = 7.5√3
Find the proper answer
Match each radical number with an equivalent number using rational exponents.
Answer:
[tex] \sqrt[5]{y {}^{4} } [/tex]
[tex] \sqrt[4]{y {}^{5} } [/tex]
Step-by-step explanation:
the denominators of the fractions are the root of the expressions while the numerators are the powers
A thunderstorm travels at a constant speed. In 15 minutes , the storm travels 12 miles. If the storm continues to travel at the same rate, how far would it travel in 90 minutes?
Answer: 72 Miles In 90 Minutes
Step-by-step explanation: First, you have to divide both 15 & 12 by 15, (which represents minutes), and you get 1 over 0.8. Next, you multiply 1 over 0.8 times 90, which gibes you 90/72. There is your answer! I hope that you found this helpful.
Here is the equation below:
15/12 divided by 15/15 = 1/0.8 x 90/90 = 90 MINUTES/72MILES
Find the missing sides and leave answers as radicals in simplest form!! I need help
Answer:
21\deg 17'34"
Step-by-step explanation:
21\deg 17'34" i thin k
i will give first person brainlist for first answer i need help fast
Mr. McCoy entered his classroom at 8:00 am and found the temperature to be 86 degrees. He immediately turns on the air conditioner. By 1:00 pm the temperature was down to 76 degrees The temperature went down at an even rate while the air conditioning was running. write an equation to find the temperature in Mr. McCoy's room at any given time between 8:00 am and 1:00 pm
Answer:
8:00 am his temperature was 86 at 1 pm it was 76 it went down 10 in the 5 hours of time so it went down 2 every hour I hope this helps
Step-by-step explanation:
work out the size angle DEF
Answer:
Step-by-step explanation:
Here, we want to get the value of angle DEF
we have this as ;
Angle DEF = 1/2 * DOF
1/2 * 150 = 75
This is because angle at the center is twice the angle at the circumference
a paper balloon costs php7.50 what is the cost if i buy 6balloons?
Answer:
45
Step-by-step explanation:
Find the y-intercept of the line, Find the slope of the line and, Find the equation of the line.
Slope-Intercept Form: y=mx+b
Slope: m
HOW TO FIND m:
Rise/Run
4/6 (it can be simplified)
We get two thirds (2/3)
y-intercept: (b)
4
Equation: y=2/3x+4
I really hope it helps:)
- An Acellus Student
Plus a scientific fact:
We have 100 billion neurons in our brain:)
What is .05866 as a fraction?
.05866 as a fraction is 2933 / 50000
Explanation: Convert to a mixed number by placing the numbers to the right of the decimal over 100000. Then reduce the fraction.
help please it is attached thank you
find the volume of cuboid
meausring 19 cm by 15 cm by 10 cm.
14=s/3 what does s equal
===============================================
Explanation:
To isolate s, we need to undo the division. We'll multiply both sides by 3
14 = s/3
3*14 = 3*(s/3)
42 = s
s = 42
-------
As a check,
14 = s/3
14 = 42/3 .... replace s with 42
14 = 14
We get the same thing on both sides, so this confirms we have the correct value of s.
The point P(3,4) is dilated by a scale factor of 5 and the center of dilation is the origin. What are the coordinates of P'?
P (____,___)
Answer:
P' (15, 20)
Step-by-step explanation:
P' ( 3×5, 4×5) = P' (15, 20)
Solve two fifths minus one seventh equals blank.
Answer:
9/35.............,..........
Answer:
1/5
Step-by-step explanation:
2/5 - 1/7 = ???
find the least common denominator!
45 would be the least common demoninator!
so...
2 (7) / 5(7) - 1 (5) / 7 (5) = ?
14/ 45 - 5 /45 = ?
14 - 5 = 9
9/45. Simplify!
9/45 divide 9 from both sides
9/9 / 45/9
= 1/5, one fifths is your answer!
Help!!!!!!!!!!!!!!!!!!
Answer:
y > 0
Step-by-step explanation:
sin0=? cos0=? tan1=?
Answer:
See explanations below
Step-by-step explanation:
Sin 0 = x
0 = arcsinx
Since 0 the angle is positive and lies in the 1st and second quadrant, sin 0 = 0 (in the first quadrant)
cos 0 = 1 (by punching the calculator)
tan 1 = 0.0174
All this values can easily be gotten directly from calculators