Answer:
there equal
Step-by-step explanation:
(-6x - 8) - (8x-9) subtract the expressions
Answer:
pic below
Step-by-step explanation:
A job requires 230' of metal conduit. The conduit comes in 8' sections.
How many sections of conduit will you need to complete this job?
Divide total length needed by length of a piece:
230/8 = 28.75
Round up to 29
They need 29 pieces
PLZ ANSWER ASAP!! ONLY IF YOU ARE CORRECT! (MORE THAN ONE ANSWER)
Answer:
C
Step-by-step explanation:
Slope and y intercept please help im stuck on this problem
At a little-known vacation spot, taxi fares are a bargain. A 18-mile taxi ride takes 21 minutes and costs $12.60. You want to find the cost of a 39- mile taxi ride. What unit price do you need?
Given :
A 18-mile taxi ride takes 21 minutes and costs $12.60.
To Find :
The cost of a 39- mile taxi ride. What unit price do you need.
Solution :
Unit price per mile :
[tex]p=\dfrac{12.60}{18}\\\\p = \$0.7\ /mile[/tex]
Cost of 39 mile taxi ride :
[tex]C = 39\times p\\\\C=39\times 0.7\\\\C=\$27.3[/tex]
Therefore, unit price is $27.3 and unit price is $0.7 / mile .
Hence, this is the required solution.
what is the answer A 3-pack of light bulbs costs $3.45. A 4-pack of the same light bulbs costs $4.20.
Which pack has better value?
Enter the correct answer in the box.
Answer:
Step-by-step explanation:
Answer: The pack with the better value is the 4 pack!
$3.45/3 = 1.15 per bulb
$4.20/4 = 1.05 per bulb
Step-by-step explanation:
Which expression is equivalent to 89÷34?
F.84 • 93
G.89 • 43
H.98• 34
J.98• 43
Answer:
ok
Step-by-step explanation:
kin
Help me please:) I don’t understand this question
are there options to the question or do you have to write it
9514 1404 393
Answer:
3x -4y = 12
Step-by-step explanation:
There are a number of different forms of the equation of a line. A few are ...
y = mx + b . . . . slope-intercept form
y -k = m(x -h) . . . . point-slope form
x/a +y/b = 1 . . . . intercept form
ax +by +c = 0 . . . . general form
ax +by = c . . . . standard form
In "standard form", the coefficients a, b, c are mutually prime integers (have no common factors) and the leading coefficient (usually, 'a') is positive.
__
Given this graph, there are several ways to get to a standard form equation. Perhaps the quickest is to start with intercept form. We can see from the graph that the x-intercept is 4 and the y-intercept is -3. So, we can write the equation of the line in intercept form as ...
x/4 +y/(-3) = 1
Multiplying this by 12 clears the fractions and gives us standard form:
3x -4y = 12
find where the two lines intersect.Please help
Denise gets paid $600 an hour plus $430 commission on her sales. If her paycheck this week was $700, how many hours did she work?
A producer received rupees 10000 when the price of a commodity was rupees 100 per unit. The receipts increased to rupees 15000 when price increased by rupees 20.Calculate the elasticity of supply?
Answer:
Price Elasticity of Supply = 1.25
Step-by-step explanation:
Price Quantity Total Revenue ( P x Q)
100 10000/100 = 100 10000
120 15000/120 = 125 15000
Price Elasticity of supply is change in quantity supplied, due to change in price. Formula : (dQ / dP) x (P / Q)
(125 - 100) / (120 - 100) x (100/100)
= 25/20 = 1.25
Find the slope of the line.Enter your answer in simplist form (-6,10) (-3,-2)
Answer:
-4
Step-by-step explanation:
I know this becasue I did it before but also becasue I checked my work with a slope calculator. You should use one if you don't want to hand do the work. If you do want to do the work it is y2-y1 over x2-x1 :)
One number is eight more than a second number. Five times the first is 8 less than 2 times the second. Find the numbers.
The value of the first number is?
The value of the second number is?
Step-by-step explanation:
let the 2 numbers be x and y.
x - 8 = y --(1)
5x = 2y - 8 --(2)
sub (1) into (2):
5x = 2(x - 8) - 8
5x = 2x - 24
3x = -24
x = -8
sub x = -8 into (1):
y = -8 - 8 = -16
first number is -8 and second number is -16.
Topic: algebraic equations + simultaneous equation
If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!
Write the equation y=3/4x+4 in standard form
Answer:
3x-4y=-16
Step-by-step explanation:
An emperor penguin travels a distance of 70 miles each year back to the place of its birth. If that same penguin moves at a speed of 2.4 miles per hour, the function d = 70 – 2.4t represents its distance d from its birthplace t hours after it has started its journey home. Find the zero of this function.
Answer:
29.17 hours
Step-by-step explanation:
to find the zero of the function, set d to equal zero, so
0 = 70 - 2.4t
-70 = -2.4t
-70/-2.4 = t
29.17 = t
Jessica sold half of her comic books and then bought 7 more. She now has 15. How many did she begin with ?
Answer:
8
Step-by-step explanation:
15-7=8
8+7=15
Answer:
16
Step-by-step explanation:
1) Subtract 7 from 15. 15-7=8
2) Multiply 8 by 2. 8x2=16
Therfore your answer is 16.
Your friend said that in order to determine the constant of proportionality, the independent variable (x) should be divided by the dependent variable (y). Do you agree? Explain.
Mike bought five items for lunch that cost a total of $4.55. Hot dogs cost $1.10 each and cookies cost $0.75 each. Which of these systems of equations below could be used to determine h , the number of hot dogs, and c , the number of cookies, Mike bought for lunch?
Answer:
1.1h+0.75c=4.55---------------1
h+c=5--------------2
Step-by-step explanation:
Step one:
given data
total lunch items= 5
let hot dogs be h
and cookies be c
cost of hot dogs = $1.10
cost of cookies = $0.75
total cost = $4.55
Step two:
The linear model for the total cost is given as
4.55=1.1h+0.75c---------------1
and the model for the number of items is
h+c=5--------------2
The systems of the equation for the situation is
1.1h+0.75c=4.55---------------1
h+c=5--------------2
In a company, 55 % of the workers are women . If 2205 people work for the company who aren't women , how many workers are there in all?
Answer:
4900
Step-by-step explanation:
If 55% of workers are women, then 45% are not; therefore, we need to answer the following:
2205 is 45% of what number?
2205=45%x
2205/.45=x
4900=x
A rocket ship travels at 2.0×104 miles per hour. If a satellite is 2.5×105 miles from Earth, how long will it take the rocket to make the trip from Earth to the satellite? (Hint: Divide the distance to the satellite by the speed.) Write your answer in scientific notation.
Answer: Time taken =1.25 x 10^1 hours 0r 4.5 x 10^4s
Step-by-step explanation:
Step 1
how long will it take the rocket to make the trip from Earth to the satellite = Time taken for the rocket to make the trip from Earth to the satellite
Speed = Distance / Time ,
Time = Distance / speed
Step 2-- solving
Time = Distance / speed
Time=2.5×10^5 miles/2.0×10^4 miles per hour
=12.5 hours = 1.25 x 10^1 hours
or 1.25 x 10^1 hours x 3600 = 45,000 seconds = 4.5 x 10^4s
2(5x - 3) - 4 = x + 4 solve for x and show work
Answer:
x= 14/9 = 1 5/9
Step-by-step explanation:
Use the distributive property to multiply 2 by 5x−3.
2(5x−3)−4=x+4
Subtract 4 from −6 to get −10.
10x−6−4=x+4
Subtract x from both sides
10x−10=x+4
Combine 10x and −x to get 9x.
10x−10−x=4
Add 10 to both sides.
9x−10=4
Divide both sides by 9.
x= 14/9
Please mark brainliest.
PLEASE HELP
solve 2v^2+4v=6 by factoring.
Answer:
v = 1 or -3
Step-by-step explanation:
2v^2 + 4v = 6
take 2 as common
2(v^2 + 2v = 3)
v^2 + 2v = 3
Now,
v^2 + 2v - 3 = 0
v^2 - v + 3v - 3 = 0
v(v - 1) + 3(v - 1) = 0
(v - 1) (v + 3) = 0
v = 1 or -3
Answer:
<=>v²+2v-3=0
<=>v²-v+3v-3=0
<=>v(v-1)+3(v-1)=0
<=>(v-1)(v+3)=0
<=>*v-1=0
v=1
*v+3=0
v=-3
question is in picture
Answer
Red is -19
Green is -24
Blue is -14
Purple is 17
Step-by-step explanation:
I don't really know what to do but...
Hope I helped.
Answer:
13,24,24,-10
Step-by-step explanation:
when the negatives are in the front it makes a positive number and two negative numbers can make a positive number also. but when the negative number is the second number it will make a negative number.
Malakai is attending lessons to learn how to play an instrument. She can attend 4 hours of lessons for a total of $100. assuming the price per hour is constant, how much would it cost for 9 hours of lessons? Show ur work
Answer:
$225
Step-by-step explanation:
$100/4hours=$25
$25 hours per one hour
So, $25x9=$225
Answer:
$225
Step-by-step explanation:
Your mother gave you $13.32 with which to buy a present. This covered 3/5 of the cost. How much did the present cost?
A. Find the answer.
B. Write a formula for the problem.
Answer:
a. $22.2
b= 13.32/x=3/5
Step-by-step explanation:
13.32/x=3/5
13.32×5=66.6
66.6/3=22.2
x(present cost)=$22.2
Answer:
22.20$
3/5 * cost = 13.32
Step-by-step explanation:
3/5 * cost (total price) = 13.32 (we know that 3/5 of the price is 13.32)
to solve
5/3 to cancel out 3/5 and isolate the cost
5/3 * 13.32 = 22.20
Solve the following equation show your work x^2-4=0
Answer:
x = 2, x = - 2
Step-by-step explanation:
Step 1:
x² - 4 = 0 Equation
Step 2:
x² = 4 Add 4 on both sides
Step 3:
x = [tex]\sqrt{4}[/tex] Square 4
Answer:
x = 2, x = - 2
Hope This Helps :)
True or False: A justification is a statement of the reason for each step in a proof.
Answer:
Step-by-step explanation:
False.
help i will mark brainliest
What is the negative solution for x(x+4)=0 ?
Answer:
x = -4
Step-by-step explanation:
x(x + 4) = 0
x = 0 ; x + 4 = 0
x = 0 - 4
x = -4
please help i’ll give brainliest (find the actual perimeter in meters)
Answer:
0.09 m
Step-by-step explanation:
hope this helps you :):)