Answer:
X=2.5
Step-by-step explanation:
3x - 5 = 1/2x + 2x
3x - 1/2x - 2x = 5
1/2x = 5
X = 5 ÷ 1/2
X = 2.5
3. Simplify the expression
Answer:
c
Step-by-step explanation:
yaal yw.
x ÷ 9 = 4 I dont know what this answer is?
Answer:
36
Step-by-step explanation:
9*4=36
Answer:
36
Step-by-step explanation:
9x4=36
36 divided by 9=4
Helppppppppppppppppooop
What value of x makes this equation true?
0.6x – 5 = 0.1x + 7
Answer:
x=24,sorry if im wrong:/
Step-by-step explanation:
Answer:
24
Step-by-step explanation:
0.6x - 5 = 0.1x + 7
-0.1x -0.1x
0.5x - 5 = 7
+5 +5
0.5x = 12
(2)0.5x = 12(0.5)
x=24
490 divided by 7 and i need to know the answer for that please
The result of 490 divided by 7 is 70.
To calculate 490 divided by 7, we can perform long division as follows:
70
__________
7 | 490
- 49 (7 times 7)
_______
0 (no remainder)
In the first step, we divide 7 into the first digit of 490, which is 4. The quotient is 0, and we bring down the next digit, which is 9.
Next, we divide 7 into 49. The quotient is 7, and there is no remainder.
Therefore, the answer to 490 divided by 7 is 70.
To know more about divided, refer here:
https://brainly.com/question/15381501
#SPJ6
Select the correct proportion to solve for the missing measurement.
Question 3 options:
10/Z=6/15
10/15=z/6
z/10=15/6
10/15=6/z
What is the answer to the proportion you set up in the last problem? Type ONLY the number in the box.
Answer:
10/Z=6/15
Step-by-step explanation:
To find the missing measurement we need to use similarity ratio
10/Z=6/15 cross multiply expressions
15z = 60 divide both sides by 15
z = 4
solve a package of 17 sliced apples $2.21.How much would a package with 25 sliced apples cost at the same price per slice?????solve pleaseee middle school
Answer:
$3.25
Step-by-step explanation:
So,
If a package of 17 sliced apples is $2.21, lets find out the price per apple.
2.21 / 17 = 0.13
so, the price per apple is $0.13
Now, we find the price of a package with 25 sliced apples.
0.13 x 25 = 3.25
So, the price of a package with 25 sliced apples is $3.25
Hope this helps!
Nancy is trying to decide which cell phone plan would be the right one for her. She has
narrowed her choices down to two, Spirit and Horizon. Spirit (s) has a fixed fee of $20 and an
additional charge of 5 cents per minute. Horizon (h) has no fee and charges 15 cents per minute.
Write two equations that could be used to determine the total cost for each plan for 300 minutes?
A. s = 5x + 20
h=15x
B. s = 0.05x + 20
h = 0.15x
C. s = 15x
h = 5x + 20
D. s = 0.15x
h = 0.05x + 20
Please help me. Due tonight.
Answer:
The sum of the interior angles of any triangle are equal to 180
therefore in this triangle, m<a+m<c+m<b=180
we know that 9x-26 and m<a are supplementary angles (meaning they add to 180) and therefore,
9x-26+a=180
9x+a=206
a=206-9x
(206-9x)+(2x-12)+(4x+43)=180
combine like terms
-3x+237=180
-3x=-57
x=19
if x=19 then we can substitue it in for c
4x+43=c
4(19)+43=c
c=119
Step-by-step explanation:
Which number has the greatest absolute value?
Answer:
|-8|
if you are happy with my answer, please give brainliest :)
Step-by-step explanation:
Absolute value of -8 is 8, which is greater than the other values.
2nd one i believe
Step-by-step explanation:
What expression is equivalent to 30 divided (3 + x)
Answer:
the second one
Step-by-step explanation:
30/ (3+x)
The midpoint of AB is M(-4,2). If the coordinates of A are (-6,5), what are the
coordinates of B?
Answer:
(-2,-1)
Step-by-step explanation:
Midpoints are found when you do ([x(subscript A) + x(subscript B)]/2, [y(subscript A) + y(subscript B)]. Therefore your equation (for x of B) should look like this:
-4 = ([-6+x]/2)
After you solve for x, you should have gotten -2 for x.
Then you do the same for y:
2 = ([5+y]/2)
You should get -1. Your final answer should be (-2, -1)
apply properties of operations to write an equivalent expression. +++
Answer:
uhhh
Step-by-step explanation:
good luck my mane man
I don’t understand please help?
Tamu ran 30 minutes and burned 170 calories.
Part A
Which equations can be used to find the average number of calories, c, burned per minute? Select each correct answer.
□ A. 30c = 170
□ B. 170c = 30
□ C. c = 170 ÷ 30
□ D. c = 30 ÷170
□ E. 30
170 = c
□ F. 170
30= c
Answer:
it's C.
Step-by-step explanation:
Jim works in real estate sales. His annual salary is
$20,000 plus 2.5% of his home sales. What was the total
value of all homes he sold if his annual pay for the year
was $120,000?
Helppppp
Answer:
4,000,000
Step-by-step explanation:
We start by subtracting his salary (20k) from his annual income. That means he got 100,000 from selling homes.
So, what is 100,000 2.5% of?
I used the equation:
100,000 = .025x
with x being the value of all the homes.
Just divide and conquer, and you end up with a final answer of 4 Million
Emily has 2 coins. If Emily flips both the coins at once, how many possible outcomes are in the sample space?
Answer:
I think it's 4 and why do I have to write 20 letters?
Find the value of x in the triangle shown below
Answer:
x = 50
Step-by-step explanation:
Since the 2 legs are congruent, both 7, then the triangle is isosceles and the 2 base angles are congruent, then
x = [tex]\frac{180-80}{2}[/tex] = [tex]\frac{100}{2}[/tex] = 50
16 - x = -18
A. x = -18
B. x = -14
C. x = 14
D. x = 18
Answer:
None of these are correct? The correct answer is 34.
Step-by-step explanation:
Subtract 16 from each side, you get -x=-34
multiply each side by -1, you get x= 34
Answer:
18 or -18 depending if that is -x or x
Step-by-step explanation:
Find the unit rate. Ryan can mow 3/5 of the yard in 2
hours. How much of the yard can Ryan mow in one hour?
Answer:
3/10 of the yard in one hour
Step-by-step explanation:
[tex]3/5(1/2)=3/10[/tex]
Answer:
3/10 of the yard.
Step-by-step explanation:
What we know:
Ryan can mow 3/5 of a yard in 2 hours.
What we need to know:
How much of the yard Ryan can mow in 1 hour, so the unit rate.
How do we do this:
It's simple if you think about it.
Just divide 3/5 by 2 (or multiply by 1/2)
3/5 * 1/2
3/(5*2)
3/10 of the yard can be mowed in one hour.
Write the equation of the line which contain the point (1, 2) and slope = - 4 .
Step-by-step explanation:
y=mx+c
2=(-4)(1)+c
2=-4+c
c=2+4
c=6
therefore the answer is...
y=-4x+6
Look at pic please :)
Answer:
x = 32
Step-by-step explanation:
(4) x/4 = 8(4)
YOu want to find x so multiply to take 4 out.
D
Question 18
2.5 pts
In an exothermic reaction, the energy of the reactants is greater than the energy of the
products. Which of the following best explains the difference in energy between the
reactants and products?
Chemical energy from the reactants is destroyed during the reaction
Ambient energy is converted to chemical energy during the reaction
Chemical energy from the reactants is released as heat.
Chemical energy in the products is created during the reaction
What is the slope of the line shown in the graph?
1) -1
2) -2
3) -1/2
4) 2
V
II
5
4
3
2
1
2
1
2
3
4
5
-1
-2
-3
-4
III
IV
Which point lies in quadrant Il on the coordinate plane?
O A. (2,4)
B. (2,-4)
OC (-2,4)
OD. (-2,-4)
Answer:
(2,4)
Step-by-step explanation:
On an average Saturday, 20% of tickets sold are child tickets. If there were 460 tickets sold on Saturday, then how many were sold to children?
Answer:
92
Step-by-step explanation:
20% of 460 tickets is 92
Answer:
92 tickets were sold to the children.
Step-by-step explanation:
To find the number, I multiplied 20% by 460, where I got 92.
A couple is starting a family and decides to have four children. Assume that the probability of having a boy or have a girl are equal. a) Find a probability model for the number of girls the couple has. b) Find the probability that the couple has at least one girl. c) What is the probability that the couple has exactly one boy or exactly one girl
Answer:
0.9375 ; 0.5
Step-by-step explanation:
Given that :
p = 0.5
Probability model for the Number of girls the couple has :
P(x =x) = nCx * p^x * (1 - p)^(n - x)
P(x = 0) = 4C0 * 0.5^0 * 0.5^4 = 0.0625
P(x = 1) = 4C1 * 0.5^1 * 0.5^3 = 0.25
P(x = 2) = 4C2 * 0.5^2 * 0.5^2 = 0.375
P(x = 3) = 4C3 * 0.5^3 * 0.5^1 = 0.25
P(x = 4) = 4C4 * 0.5^4 * 0.5^0 = 0.0625
Probability of having atleast one girl
Number of trials, n = 4
P(x ≥ 1) = p(x = 1) + p(x = 2) + p(x = 3) + p(x = 4)
Using the relation :
P(x =x) = nCx * p^x * (1 - p)^(n - x)
Using calculator ;
P(x ≥ 1) = 0.9375
Probability of having exactly one boy or exactly one girl
1 boy 3 girls OR 1 girl 3 boys
P(x = 1)
P(x =x) = nCx * p^x * (1 - p)^(n - x)
P(x = 1) = 4C1 * 0.5^1 * 0.5^3
P(x = 1) = 4 * 0.5 * 0.125
P(x = 1) = 0.25
The probability of having one girl, 3 boys and vice versa is 0. 25
Hence, Probability of having exactly one boy or exactly one girl
0.25 + 0.25 = 0.5
An artist is asked to scale up a model of Pluto to 3 times its original size. If the original model of Pluto has a radius of 12 cm, what is the volume of the new model?
Answer:
72
Step-by-step explanation:
24 times 3 is 72
Answer:
The volume of the new model of Pluto is 195,432.20 cm^3
Step-by-step explanation:
new radius: 12 * 3 = 36 cm
volume: V=4/3 * π * r^3
volume of new mode is 195,432.20 cm^3
What is the equation in slope-intercept form of the line that passes through the point (12, 5) and is perpendicular to the line represented by y=34x−8?
Answer:
The equation in slope-intercept form of the line that passes through the point (12, 5) and is perpendicular to the line is:
[tex]y=-\frac{1}{34}x+\frac{91}{17}[/tex]Step-by-step explanation:
We know the slope-intercept form of the line equation
[tex]y=mx+b[/tex]
where m is the slope and b is the y-intercept
Given the line
[tex]y=34x-8[/tex]
comparing with the slope-intercept form of the line equation
The slope m = 34
We know that a line perpendicular to another line contains a slope that is the negative reciprocal of the slope of the other line, such as:
slope = m = 34
Thus, the slope of the the new perpendicular line = – 1/m = -1/34 = -1/34
Using the point-slope form
[tex]y-y_1=m\left(x-x_1\right)[/tex]
where m is the slope of the line and (x₁, y₁) is the point
substituting the values of slope = -1/35 and the point (12, 5)
[tex]y-y_1=m\left(x-x_1\right)[/tex]
[tex]y-5=-\frac{1}{34}\left(x-12\right)[/tex]
Add 5 to both sides
[tex]y-5+5=-\frac{1}{34}\left(x-12\right)+5[/tex]
[tex]y=-\frac{1}{34}x+\frac{91}{17}[/tex]
Therefore, the equation in slope-intercept form of the line that passes through the point (12, 5) and is perpendicular to the line is:
[tex]y=-\frac{1}{34}x+\frac{91}{17}[/tex]The graph shows the change in the price of a stock over time.
с
D
B
Time
Identify the time intervals for which the stock price increased, decreased, or remained constant.
Move the intervals to the appropriate column in the table.
Stock Price Increased Stock Price Decreased Stock Price Remained constant
B
D
Answer:b,A,D
Step-by-step explanation: