Algebra Mathematics
Question 1
Mr Brown has several models of famous people that each weigh the same. He decides to add in some new models that are of different weights to his old ones. In Room Number One, there are five old models along with a new model that weighs 240kg.
In Room Number Two, there are 3 old models along with a new model that weighs 510kg.
THE TOTAL WEIGHT OF THE MODELS IN ROOM ONE IS EXACTLY THE SAME AS THE TOTAL WEIGHT OF THE MODELS IN ROOM TWO.
What is the weight of an old model?
Answer:
135kg
Step-by-step explanation:
In room number one, there are five old models and a new model, which weights 240kg. So, it can be concluded that there are 6 models in there, and we can write it as 5x ( x = old models ) + 240 ( weight of new model ). then informed room number two, there are 3 old models and a new one, weighting 510kg. write it as 3x + 510.
the equation will be as: 5x + 240 = 3x + 510
move 3x to the front behind 5x, move +240 to the back behind 510. you will get 5x - 3x = 510 -240
which will be 2x = 270, then move 2 behind 270, means 270 divide 2, which then you will get 135kg
In room number one, there are five old models and a new model, which weights 240kg. So, it can be concluded that there are 6 models in there, and we can write it as 5x ( x = old models ) + 240 ( weight of new model ). then informed room number two, there are 3 old models and a new one, weighting 510kg. write it as 3x + 510. the equation will be as: 5x + 240 = 3x + 510 move 3x to the front behind 5x, move +240 to the back behind 510. you will get 5x - 3x = 510 -240 which will be 2x = 270, then move 2 behind 270, means 270 divide 2, which then you will get 135kg
Use the attached picture to determine the slope of the line. Type your answer in the space provided.
Please don't answer if you don't know it!!
What is the division expression that is the same as 1/9 divided by 5?
1/9 x 5
9/1 x 5/1
1/9 x 1/5
Answer:
[tex]\frac{1}{9}*\frac{1}{5}[/tex]
Step-by-step explanation:
[tex]\frac{1}{9} \div 5\\\\\frac{1}{9}*\frac{1}{5}\\\\\frac{1}{45}[/tex]
Hope this helps!
Hii.
First, lets divide 1/9 by 5 .
1/9 divided by 5 is 1/45
Lets multiply to find out the answer.
1/9 x 5 =5/9.
So this is not correct since it does not equal 1/45
9/1 x 5/1 is 45
This is not correct because it does not equal 1/45
1/9 x 1/5 is 1/45
This is correct because it equals 1/45
. Hope this helps. brainliest.
can some one help me i need it done by today
Answer:
Number 9: 1.25 miles
Step-by-step explanation:
In total Brian hiked 16 miles
In total Christine hiked 14.75
So, 16 - 14.75 = 1.25
Overall, Brian hiked 1.25 more miles than Christine.
Jacob and Jackson are on a hill by the river Jacob throws an acorn into the river is acorns path is described by the equation y= -3x^2+6x+6 Jackson is her on the hill then Jacob he also throws an acorn into the river his acorn is shown by the graph in each function the x is the acorns horizontal position from the hill and one represents its height and both are measured in feet who's Acorn is on fire point above the river
Answer: Jackson's acorn reached a higher point.
Step-by-step explanation:
Help, please! I DONT GET IT
Answer:
look at the set
Step-by-step explanation:
and determine the difefrences
Is 9 prime, composite, or neither?
composite
prime
neither
Answer:
neither
Step-by-step explanation:
it cant be either of them.
Answer:
9 is a composite number.
Im 21 assignments behind try your best <3
Answer:
.5, 3, 8.5
Step-by-step explanation:
Divide the minutes by 2 since 6 is half of 12.Half of 1 is .5 or [tex]\frac{1}{2}[/tex]Half of 6 is 3Half of 17 is 8.5If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.
Step-by-step explanation:
Pages is directly proportional to Minutes
P = KM
k = P/M
when P = 6, M = 12.
k = 6/12
k = 0.5
_____________________
when M = 1
P = Km
P = 0.5×1 = 0.5
P = half a page.
______________________
when M = 6
P = 0.5× 6
P = 3 pages
______________________
when M = 17
P = 0.5×17 = 8.5
P = 8 and half pages
A triangle has perimeter 3a+11. One side is 2a and another side is 8. What is the third side?
Answer:
1a + 3
Step-by-step explanation:
What's the perimeter of a triangle?
❖ The perimeter of a triangle is the distance around a triangle, or the
sum of all its side lengths.
How does it apply here?
❖ In this case, we're given the perimeter of the triangle as 3a + 11. We
also have two dimensions of the triangle: 2a and 8. Now, we need to
find the third side. To find the third side, we subtract 2a + 8 from 3a +
11.
Solving
[tex](3a+11)-(2a+8)[/tex] [tex]3a+11-2a-8[/tex] [tex]1a+3[/tex]Now, let's check if 1a + 3, 2a, and 8 add up to 3a + 11.
[tex]1a + 3 + 2a + 8[/tex] [tex](1a+2a)+(3+8)[/tex] [tex]3a+11[/tex]Therefore, the answer is 1a + 3.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
need some help with this please!!
Answer:
Reflect triangle XYZ in 90' towards negative.
Mark me as brainlist. Hope it helps you.
Mr. Martin wrote the following problem on the board.
Juanita's car has a gas mileage of 22 miles per gallon.
How many miles can Juanita travel on 8 gallons of gas?
Alex used
22 miles
1 gallon
×
1
8 gallons
to find the answer. What should Alex have done instead?
PLEASE HELP FAST!!! Denise measured a community college and made a scale drawing. In real life, a building at the college is 122 meters long. It is 183 centimeters long in the drawing. What scale did Denise use?
3 centimeters : how many meters
The scale that Denise used for a community college and made a scale drawing is 3 centimetres: 2 meters.
Given that;
Denise measured a community college and made a scale drawing.
Now, for the scale Denise used, set up a proportion using the measurements from the drawing and real life.
So, from the proportion:
3 centimetres (drawing): x meters (real life) = 183 centimetres (drawing): 122 meters (real life)
Using cross-multiplication, solve for x:
3 centimeters × 122 meters = 183 centimeters × x meters
366 centimeters meters = 183 centimeters x meters
Now divide both sides of the equation by 183 centimetres to isolate x:
366 centimetres meters / 183 centimetres = x meters
x = 2 meters
Therefore, the scale Denise used is 3 centimetres: 2 meters.
To learn more about the proportion visit:
https://brainly.com/question/1496357
#SPJ3
i need help with this one
Answer:
your right
Step-by-step explanation:
add them all and divide by 30
Answer:
it is 80
Step-by-step explanation:
i did the assignment
hope this helps
HELP please ASAP pls...
Answer:
-5&3/5
Step-by-step explanation:
Write an equation to match this graph.
Answer:
y=5x
Step-by-step explanation:
We can write this in slop-intercept form
Find the slope, rise/run = 10/2 = 5. So our slope is 5
Find the y-intercept which is 0
y=5x+0 or y=5x
Check it by plugging in a y value or x value
lets says we plugin 15, 15=5x and x=3
By looking at the graph we can see that it works
Which of the following is a proportion
3 : 4
5 to 6 and 1 : 2
1/5=5/6
1/5 and 5/10
Answer:
um I think it's 5 to 6 and 1:2
Step-by-step explanation:
I'm not completely sure so don't get mad if it's wrong
Gina designs and makes her own clothes. She drew the diagram at right of the fabric she needs for the front and back of a new shirt. If each unit on the grid represents one inch, how much fabric will she need?
Answer:
56
Step-by-step explanation:
Because if you add all the sides together then and find an area and primer then that's how I found out.
Help me please with this
You are having a pizza - making party.
You will need 6 ounces of dough and 4 ounces of sauce for each person ( including yourself, the host ) .
Once you have a total count of guest, you buy exactly the needed amount of all the ingredients . The dough and sauce that you buy weigh 130 ounces all together.
1. How many ounces of dough did you buy?
2. How many ounces of sauce did you buy?
3. Num. Guest 0ω0
Worth 10 points . . .
Answer:
uhhhhhh 420....?
Step-by-step explanation:
Answer: I really need points thx
Step-by-step explanation
HELPPPP ASAP iwill give brain
Answer:
Day 3 : 6 Day 2: 4 Day 1: 2 and so on
Step-by-step explanation:
This may not be correct but i think that you multiply the day number by two.
Answer:
Day 3 : 6 Day 2: 4 Day 1: 2 and so on
Step-by-step explanation:
You should multiply the day number by two.
Answer to this question?
Answer:
the slope is 2
Step-by-step explanation:
to find the slope, use the equation
y2 - y1/ x2 - x1
all you have to do is substitute the values given (2, 1) (-1, -5)
its really easy actually but anyways
1 - (-5) / 2 - (-1)
1 + 5/ 2 + 1
6/3
2
The picture shows the graphs of the functions expressed by a formula of the following type: y = kx + b.
Determine the signs of k and b for each graph.
First graph: k is_____, b is _____
Second graph: k is_____, b is _____
I will award Brainiest to the first one who gets it correct! :)
Answer:
line 1: y= 1x+ 2
line 2: y= -1x-0.5
(usually 1 is omitted but I added for clarity)
Step-by-step explanation:
slope (x)= yfinal-yintial/xfinal-xinitial
b= where line intersects y axis
line 1: (-1,0), (0.5,1.5)
(1.5-0)/(0.5-(-1))
(1.5)/(1.5)
slope= 1x
y=x+ 2
line 2: (-0.5,0), (0.5,-1)
(-1-0)/(0.5-(-0.5))
(-1)/(1)
slope= -1x
y=-x-0.5
(BRAINLIEST TO BEST ANSWER!)
19 ÷ 2
Options:
A.9 r 1
B.8 r 2
C. 10 r 3
Answer:
Option A.
Step-by-step explanation:
19 ÷ 2 would be 9.5, but since this is doing remainders and not decimals, it is 9 remainder 1.
Can someone pleasee help me asap
Answer:
9ft is 2nd answer
1st is 100in
Adding Rational Expression
I really need help
Answer:
your answer will be 3x/5x
Answer: 14x^2 −7x+2
(x+2) (4x−1)
Help please. What is 1.6 x -9?
Answer:
-14.4
Step-by-step explanation:
Answer:
-14.4
Step-by-step explanation:
If you have $1.60 cents then times it 9 times, take the sum and put back the -.
Use the Pythagorean theorem to find the length of side FD.
Answer: i think its 9 but sorry if I'm wrong I'm only in 4th grade
Step-by-step explanation:
You are having a pizza - making party.
You will need 6 ounces of dough and 4 ounces of sauce for each person ( including yourself, the host ) .
Once you have a total count of guest, you buy exactly the needed amount of all the ingredients . The dough and sauce that you buy weigh 130 ounces all together.
1. How many ounces of dough did you buy?
2. How many ounces of sauce did you buy?
3. Num. Guest 0ω0
Answer:
78 ounces of dough, 52 ounces of sauce
Step-by-step explanation:
130 ounces in all, 13 multiplied by 10( 6 dough and 4 sauce), multiply both by 13
helppppp please loll
Answer:
1:10 in ratio. 1/10 in fraction
Step-by-step explanation:
help me please i need help im terable at math
Answer:
83
Step-by-step explanation:
70=x-13
70+13=x-13+13
83=x