which expression will have the same value as 3(4x + 9) - 6x for all values of ?
Need help don’t know what to do I’m confused
Answer:
last option; h = 2t - d
Step-by-step explanation:
t = 1/2(d + h)
t = [tex]\frac{d}{2}[/tex] + [tex]\frac{h}{2}[/tex]
now multiply each side by 2 to eliminate denominator
2t = 2 ([tex]\frac{d}{2}[/tex] + [tex]\frac{h}{2}[/tex])
2t = d + h
h = 2t - d
Mary wants to buy 8 pounds of
grapes. Each pound costs $1.89.
Mary has $15. Does she have enough
money to buy the grapes? Explain.
Answer:
No, he does not have enough money to buy the grapes because he only has 15$ when in total the the grapes are $28.35.
Step-by-step explanation:
A broker charges customers a fixed fee of 150 plus 5.50% of the amount of all investments made. If a customer invests £40000 through the broker what is the total brokerage payable.
Answer:
£2350
Step-by-step explanation:
Commission on the £40,000 = 0.055 x £40000 = £2,200
Total brokerage payable = £2,200 + £150 = £2350
for the Indicated variable.
15) z=-, for a
m
A) a = zm
m
B) a=
C) a=-z- m
D) a= 2
Answer:
D.
Step-by-step explanation:
Simplify this expression (d + 5) + (d + 5) + (d + 5)
Answer:
3d + 15
Step-by-step explanation:
(d + 5) + (d + 5) + (d + 5) =
d + 5 + d + 5 + d + 5 =
(d + d + d) + (5 + 5 + 5) =
3d + 15
what is the slope? (IXL)
Answer:
The slope is 2/3.
Step-by-step explanation:
Rise over run.
list the first multiples of 6
Answer:
1,2,3, and 6.
Step-by-step explanation:
Answer:the first multiples of six are 1,2,3,6
Step-by-step explanation:
look it up hope this helps
Use slopes to determine if the lines y=6 and x=6 are perpendicular
Answer:
Lines are perpendicular
Step-by-step explanation:
slope of y=6 is 0
slope of x=6 inf
I need help if you help I’ll give you extra points!!!!!!!
Answer:
a=66m b=4.58cm
Step-by-step explanation:
a=5610 divided by 85=66 so 66m ×85 m =5610 meters squared
b=330cm ÷ 72 cm is 4.58. So 72×4.58=329.76 so rounded =330
someone help with this question please
Answer:
m=1/6
Step-by-step explanation:
The speed of one car is 20% less than the speed of a second car. What per cent more time does the first car need to travel the same route as the second car?
Answer:
25% or more
Step-by-step explanation:
t1 = d1/v1 , t2 = d2/v2.
d1 = d2 , and v1 = 0.8 v2
t1 / t2 = d1/d2 x v2/v1 = v2/v1 ( as d1 = d2 )
t1/t2 = v2 / v1 = v2/0.8 v2 = 1/0.8 = 1.25
which is the best deal
12oz. for $.99
64oz for $2.99
128 oz. $4.99
Answer:
best deal is 64oz for $2.99
Answer:
I would say 64oz for $2.99
Step-by-step explanation:
HELPPP, PLEASE SHOW WORK
Answer:
The answer is D)
Step-by-step explanation:
hope it helps
Answer:
[tex]\boxed{\text{\sf \Large D}}[/tex]
Step-by-step explanation:
Add both equations
[tex](x+x)+(y-y)=2^m+2^n[/tex]
[tex]2x=2^m+2^n[/tex]
Divide both sides by 2
[tex]\large \text{$ x=\frac{2^m+2^n}{2} $}[/tex]
Use the equation 2m + 4s = 16 to complete the table, then graph the line using s as the
dependent variable.
Answer:
S. 4
M. 2
S. 5
M. 8
And the graphing you just do those as m/s -->(M,S)
You can put the value of m or s in the given equation of m and s to obtained the missing value.
The completed table would look like:
[tex]\begin{array}{ccccc}m & 0 & 2 & -2 & 8\\s & 4 & 3 & 5 & 0\end{array}[/tex]
Simplifying the relation between m and s:[tex]2m + 4s = 16\\\\ \text{Dividing by 2 on both sides}\\\\ \dfrac{2m + 4s}{2} = \dfrac{16}{2}\\\\ m + 2s = 8[/tex]
How to evaluate the missing values?Use one of the given value and the equation to find the missing value:
For m = 0:[tex]m + 2s = 8\\ 0 + 2s = 8\\ 2s = 8\\\\ s = \dfrac{8}{2}\\\\ s = 4[/tex]
For s = 3:[tex]m + 2s = 8\\ m + 2 \times 3 = 8\\ m = 8 - 6\\ m = 2[/tex]
For m = -2:[tex]m + 2s = 8\\ -2 + 2s = 8\\ 2s = 10\\ \\ s = \dfrac{10}{2} \\\\ s= 5[/tex]
For s= 0:[tex]m + 2s = 8\\ m + 2 \times 0 = 8\\ m = 8[/tex]
Thus, the completed table would be:
[tex]\begin{array}{ccccc}m & 0 & 2 & -2 & 8\\s & 4 & 3 & 5 & 0\end{array}[/tex]
Learn more about linear equations here:
https://brainly.com/question/25826868
Solve the inequality. Graph the solution. b- 2 ≥ -1
Answer:
Hopefully this can help
Step-by-step explanation:
FACTOR and list your 4 steps: 5x^2y - 30xy^2
Answer:
5x • (x + 3y) • (x - 2y)
Step-by-step explanation:
andy runs 441.6 meters in 16 seconds. if andy runs at a constant speed, how far does her run in one second? give your answer to the nearest tenth of a second.
What’s the slope of C=50t+100
Answer:
50
Explanation:
This equation is in y = mx+b form.
The m is the slope and the b is the y intercept. So, 50 is the slope and 100 is the y-intercept.
Answer: five
Step-by-step explanation:
8th grade algebra! please help. 20 points. due in 10 minutes. question is in the picture.
Answer:
B
Step-by-step explanation:
.45y+.3(0) = 3.6
y=8
8 does not equal 12
Parallel slope to -5
Answer:
-5 is the parallel slope to the slope -5.
20
Question
Mrs Holland wants to paint her garage wall.
The wall measures
6 ſm by 31m
Each can of paint covers 5m2
Each can costs £7.50
How much will it cost Mrs Holland to paint her garage wall?
Answer:
Try the answer as £37.50
Step-by-step explanation:
Answer: £37.50
Step-by-step explanation:
Tell one the lines for the given points are parallel, perpendicular, or neither. Just your answer.
Line 1: (2, -3), (-4, -6)
Line 2: (-3, 2), (2, -8)
Answer:
Perpendicular
Step-by-step explanation:
Given
[tex]Line\ 1: (2, -3), (-4, -6)[/tex]
[tex]Line\ 2: (-3, 2), (2, -8)[/tex]
Required
Tell the relationship between both lines
We start by calculating the slopes (m) of both lines.
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
For Line 1:
[tex]m_1 = \frac{-6 - (-3)}{-4 - 2}[/tex]
[tex]m_1 = \frac{-6 +3}{-4 - 2}[/tex]
[tex]m_1 = \frac{-3}{-6}[/tex]
[tex]m_1 = \frac{1}{2}[/tex]
For Line 2:
[tex]m_2 = \frac{-8 - 2}{2 - (-3)}[/tex]
[tex]m_2 = \frac{-8 - 2}{2 +3}[/tex]
[tex]m_2 = \frac{-10}{5}[/tex]
[tex]m_2 = -2[/tex]
The lines are not parallel because [tex]m_1 \ne m_2[/tex]
However, they are perpendicular, because:
[tex]m_1 = -\frac{1}{m_2}[/tex]
To prove this, substitute values for m1 and m2
[tex]\frac{1}{2} = -\frac{1}{-2}[/tex]
[tex]\frac{1}{2} = \frac{1}{2}[/tex] --- Proved
A 22 km walk is completed in 5 hours and 30 min.
What is the average speed?
Answer:
121 km\hr
Step-by-step explanation:
displacement=speed÷time
then. speed = displacement×time
= 22 × 5.5
= 121 km\hr
Please help me on this question please?
Answer:
Rosie is incorrect.
Step-by-step explanation:
3600/200
The zeros get cancelled
36/2
The answer is 18.
3/4 divided by 1/2 brainleist if answer
Answer:
1 2/4 (1 1/2)
Step-by-step explanation:
keep, change, flip is how you solve these kinds of problems
the 3/4 stays the same
you turn the ÷ into x
and flip the 1/2 (2/1)
so it becomes
3/4x2/1= 1 2/4 (simplified is 1 1/2)
The perimeter of a flag is 474 inches. The flag is 100 inches tall. How long is it?
is 4 a solution of 3x+8=4 ? complete the statement
help read the instructions
Answer:
y = 30200
x = -29950
Step-by-step explanation:
1.)
Let x represent children and y for adults.
200x + 450y = 7,600,000
x + y = 250
2.)
200x + 450y = 7,600,000
x + y = 250
-200(x + y = 250)
-200x + -200 = -50000
200x + 450y = 7,600,000
+ -200x + -200 = -50000
——————————————-
250y = 7550000
y = 30200
x + 30200 = 250
x = -29950
Uhm so I don’t know why for children I got a negative number? The wording for this question is very weird.
write the equation for the line in slope-intercept form (2,-3) (-1/2) ( HELP PLEASE )
Answer:
A linear equation is a fancy term for a straight line, which can be created by joining 2 points.
A point can be defined by (x, y), where x and y are the horizontal distance and the vertical distance respectively from point (0,0) (called the origin).
There are 3 ways to define a line:
(1) The slope-intercept form
y = mx + b, in which m is the slope, b is the y-intercept, where the line crosses the vertical axis at (0, b). If values of m and b are given, you can substitute and write the equation right away.
The slope, m, is calculated by rise (vertical difference between 2 points on the line) divided by run (horizontal difference between the 2 points on the line)
Step-by-step explanation:
or example, if 2 points on the line are
(x1, y1) and (x2, y2)
Then slope = (y1– y2)/(x1 — x2)
If m > 0, then the line rises to the right.
If m = 0, then the line is horizontal.
If m < 0, then the line rises to the left.
If the line is in the form x = c, where c is a constant, then the line is vertical.
(2) Point slope form
m = (y — y1)/(x — x1), when (x1, y1) and m are given.
In other words,
m(x — x1) = y — y1
mx — m(x1) = y — y1
y = mx — m(x1) + (y1)
Note that b = -m(x1) + (y1)
(3) linear form
ax + by + c = 0, where a, b, and c are constants.