Answers
Related Questions
through: (-3, -4) and (2, 1)
Answers
Answer:
y = 1x - 1
Step-by-step explanation:
[tex]\frac{y2-y1}{x2-x1}\\\frac{1-(-4)}{2-(-3)}\\\frac{1+4}{2+3}\\\frac{5}{5}=1\\y=1x+b\\1=1(2)+b\\1 = 2 + b\\-1 = b\\y = 1x-1[/tex]
Please help for the whole section i really need this answer am failing my math class
Answers
The cost for an order of 100 kilograms of steel bars is $230. The cost for an order of 150 kilograms of steel bars is $320. Write an equation for the cost of an order of steel bars (y) in terms of the weight of steel bars ordered (x). Show or explain how you found your equation.
Answers
Answer:
y = 9x/5 + 50
Step-by-step explanation:
We are represent the information as coordinate (x,y)
If the cost for an order of 100 kilograms of steel bars is $230, this is expressed as (100, 230)
Also if the cost for an order of 150 kilograms of steel bars is $320, this is expressed as;
(150, 320)
Find the equation of a line passing through the points. The standard form of the equation is expressed as y = mx+c
m is the slope
c is the intercept
Get the slope;
m = y2-y1/x2-x1
m = 320-230/150-100
m = 90/50
m = 9/5
Get the y-intercept by substituting m = 9/5 and any point say (100, 230) into the expression y = mx+c
230 = 9/5(100)+c
230 = 9(20)+c
230 = 180 + c
c = 230-180
c = 50
Get the required equation
y = mx+c
y = 9/5 x + 50
Hence an equation for the cost of an order of steel bars (y) in terms of the weight of steel bars ordered (x) is y = 9x/5 + 50
the slope and y intercept of y=-8x
Answers
Answer:
m = -8
b = 0
Step-by-step explanation:
In slope intercept form [ y = mx + b ], m = slope and b = y-intercept.
We aren't given a b value, but we are given a m value which is -8.
Best of Luck!
A car is traveling at a constant speed of 55 miles per hour. Using m for miles and t for time, write 2 equations to represent this situation. One equation to solve for miles and the other equation to solve for hours.
Answers
Answer:
m = 55t
t = m/55
Step-by-step explanation:
According to the formula for calculating speed expressed as;
Speed = distance/time
Given;
Distance = 55mph
required:
distance as a function of t
time as a function of distance m
If distance is m and time is t
From the formula;
55 = m/t
m = 55t
Hence the equation to solve for miles m is m = 55t
To get t, we will cross multiply from 55 = m/t;
55t = m
Divide both sides by 55
55t/55 = m/55
t = m/55
Hence the equation to solve for time in hours is t = m/55
1. What do you need to show in order to prove that a number is divisible by 3?
Then, use an example to show your explanation is correct. *
Answers
Answer:
You can divide and see if its devided by 3, and if its not in the times table, you will have a decimal
Step-by-step explanation:
what is absolute vaule of -13
Answers
Answer:
i believe those line by it mean the opposite of so the answer would be 13
Answer:
13
Step-by-step explanation:
The absolute value is the distance of a number from 0. In this case it is 13. Hope this helps!! :)
1.
Mark translated trapezoid A B C D to trapezoid A prime B prime C prime D prime Vertex B was at (4, 3) . If B prime is now at (-2, 2) , what did he have to do to get there?
move 6 units left and 1 down
move 2 units down and 1 left
move 6 units down and 1 up
move 5 units right and 6 left
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I NEED HELP PLS!! i am so confused on what to do if you can explain that would be awesome!
Answers
Answer:I am pretty sure that it is that you add 26 and 71 and then subtract it by 180 and then the other one is across so it would be the same answer so it would be 83
Step-by-step explanation: I hope this helped
2p - 3q - 4r + 6r -2q + p
Answers
2p - 3q - 4r + 6r - 2q + p = 0
2p + p - 3q - 2q - 4r + 6r = 0
3q - 5q + 2r = 0
a college spends 40% of an individual's tuition on salaries and the remainder on other costs if they spend 1,800 on other costs how much is an individual's tuition?
Answers
Answer:
$3000
Step-by-step explanation:
If the remainder is spent on other costs, then that means 60% of the tuition as spent on other costs.
To find the total tuition, divide 1800 by 0.6:
1800/0.6
= 3000
So, their tuition was $3000
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Daniel can spend no more than $40 at the fair. If admission into the fair is $10 and the rides cost $1.50 each, which inequality represents the greatest number of rides Daniel can go on?
A. 10r + 1.50 ≥ 40
B. 1.50r + 10 ≤ 40
C. 1.50r + 10 <40
D 10r+1.50<40
Explain your reasoning and solve the inequality :
Answers
Answer:
B
Step-by-step explanation:
The sum spent has to be either equal to or less than 40. So r many rides, each of them being 1.50, plus 10 dollars has to equal to less or equal to 40 dollars.
Answer:
The answer is B
The greatest number of rides Daniel can go on is 20.
Step-by-step explanation:
Total: The same or less than 40
Fair Admission: 10
ride: 1.50x
40 ≤ 10 + 1.5r
To solve:
40 ≤ 10 + 1.5r
40 - 10 ≤ 10 + 1.5r - 10
30 ≤ 1.5r
30 ÷ 1.5 ≤ 1.5r ÷ 1.5
20 ≤ r
The greatest number of rides Daniel can go on is 20.
I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
Evaluate: 461 ÷ 10 to the third power
Answers
Answer:
461 divided by 10^3 is 0.461.
Step-by-step explanation:
Hope this helps and I hope u have an Amazing day!!
An architect is using the scale 10 feet = 1 inch. If the actual length of the room 65 feet, what will be the length of the scaled copy?
Answers
Answer:
6.5 inches
Step-by-step explanation:
you would divide 65 by 10 feet to get the answer in inches which is 6.5
The company plans to have the tanks painted after they are installed. Describe the effect that doubling the diameter has on the amount of paint needed to paint the tanks. What happens when the diameter is increased by a factor of 3?
Answers
Answer:
The effect of doubling the diameter is increased the area to paint as 4 times. So, paint needed is 4 times than it was before. And the area is increased by 9 times when the diameter is increased by a factor of 3. So, paint needed is 9 times than before.
Step-by-step explanation:
Please remember the concept
If side lengths are in the ratio a : b
Then the area are in the ratio of a^2 :b^2
The volume are in the ratio of a^3 :b^3,
When diameter is doubled, the area ratio becomes [tex]x^{2} :(2x)^{2}[/tex] which is simplified to [tex]x^{2} :4x^{2}[/tex]
So, the area is increased by 4 times.
According to this concept , the diameter is increased by the scale factor 3.
Let the diameter of tank is 'x', so the diameter becomes "3x"
So, it's area ratio would be [tex]x^{2} :(3x)^{2}[/tex]
If we simplify it we get [tex]x^{2} :9x^{2}[/tex]
We conclude that area to be increased by 9 times.
Bye guys see you after the break!
What makes people float?
Answers
Answer: majic makes people foeat
Step-by-step explanation: i eat gatorade
Answer:
Pennywisee
Step-by-step explanation:
Jamar spent $5.60 on 5 bags of Doritos The neighborhood store. how much did each bag of chips cost?
Answers
Answer:
5!60
Step-by-step explanation:
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Hunt ye dzkpksnsnjfnngfhnf l dk h TL hhsinp
What is the circumference of the circle
A. 18.84
B. 17.6
C. 21.79
D. 15.65
Answers
Answer:
18.84
Step-by-step explanation:
The formula for circumference is 2(pi)r, I think. The radius is 3. 3 times 2 is 6. 6 times 3.14 is around 18, I think.
hope this helps
Answer:
A
Step-by-step explanation:
Having trouble,Whats 1/3 (-2/4)
Answers
Answer:
-1/6
Step-by-step explanation:
im assuming you meant multiply them? if so then
1 -2 -2 -1
--- * --- = --- = ---
3 4 12 6
or
1/3=4/12 and -2/4=-6/12
4/12*-6/12=-24/144=-1/6
Answer:
-1/6
Step-by-step explanation:
just multiply 1/3x2/4=
and then in front of the answer put the negative sign
If a factory can produce 25,000 gears in 1 day, how many gears will it produce in 3 days?
Answers
Answer:
75,000 gears
Step-by-step explanation:
i will love uu forever if uu answer dis for me
Answers
#15 is 11 and
#16 is adding 3
Answer:
the answer is 2...........jpjpjp ion knowwwwwwwww
Step-by-step explanation:
3. Use the distributive property to express 64 + 24. *
Answers
Answer: 8(8+3)
Step-by-step explanation:
64 + 24 is the same as 8*8 + 8*3. Therefore you can "pull out" the 8 and that is your answer
yoo plz help with these 2 questions
using algebra to solve for missing in a formula
Answers
Answer:radius is 6,height is 4
Step-by-step explanation:
Write a function for the following table
X. Y
-1. -4
0. -2
1. -1
2. -0.5
Please help I only have 20 minutes
Answers
Answer: x+1 = y/2
Step-by-step explanation:
X is increasing by 1
(Adding 1 to each number)
For Y, divide it by 2
-4/2 = -2
-2/2 = -1, etc.
Please help due in 9 minutes
Answers
Answer:
the ans is 5 I think only
Find the equation in slope-intercept form that describes each line.
a line with slope –2 and y-intercept 4
A. y = –2x
B. y = 2x – 4
C. y = –2x + 4
D. y = 4x – 2
Answers
Explanation:
PLEASE ANSWER THESE! First person to do it gets brainliest!
LENGTH:
1. What is the basic unit for length? ______________
2. Circle the best unit for measuring each distance:
a. Thickness of an eyelash: mm cm m
b. Length of a pencil: cm m km
MASS:
3. What is the basic unit for mass? ______________
4. Circle the best unit for measuring each mass:
a. Amount of spices in a batch of cookies: mg g kg
b. Your mass: mg g kg
c. Mass of 10 pennies: mg g kg
VOLUME:
5. What is the basic unit for volume? _______________
6. Circle the best unit for measuring each volume:
a. Amount of soda in 1 can: mL L
b. Water in a bathtub: mL L
5.712 g =_______________ kg
222.7 L =_______________ dL
16.45 m =_______________ cm
39.56 g =_______________ mg
10.5 g =_______________ dkg
3.54 mg =_______________ dg
28.6 g =_______________ hg
910 m =_______________ dm
0.006700 kg =_______________ cg
5.44 m =_______________ cm
15.82 mL =_______________ cm3
Answers
2(a). mm
2(b). cm
3. Gram
4(a). g
4(b). kg
4(c). g
5. Liter
♦Will mark brainliest♦
A zoologist is recording the loss of wolves in her state. She notes the number of wolves, w, in the state on January 1. One year later, there were 84 wolves in the state, which is 23 fewer wolves than were in the state a year earlier. What is the number of wolves in the state on January 1? Which equation can be used to find the number of wolves in the state on January 1?
w−84=−23
w + 23 = 84
w−23=84
23−w=84
For those who know this answer and did not get to copy the link below and paste it into search bar thanks have a wonderful day
https://brainly.com/question/20143416
Answers
Answer:
3.
Step-by-step explanation:
The wolves from the previous year minus 23 is 84.
Find the measure of angle A.
Please help??
Answers
Answer:
4
Step-by-step explanation:
Answer:
Creo que es 40
Step-by-step explanation:
80+15x+(11x-4)=180
26x=104
x=4
Entonces
11x-4 --> 11*4-4 = 40
Marcus has earned 353 out of 400 points in Math class. What grade did Marcus make in his math class? (Round grade to the nearest tenth of a percent)
Answers
Answer:
an 88.25
Step-by-step explanation:
well 88%