Answer:
interchangeable parts.
Step-by-step explanation:
Eli Whitney here demonstrates interchangeable parts.He took several guns, dismantled them, put the pieces in a box, and shook it. He then randomly selected the pieces he needed, assembled on rifle, and fired it. popularized in America when Eli Whitney used them to assemble muskets in the first years of the 19th century, allowed comparatively unskilled workers to manufacture vast quantities of arms rapidly and at lower expense, and made repair and replacement of parts exponentially simpler.
Step by step how do you solve ratios and proportions?
Answer:
A proportion is an equality of two ratios.
...
Things to remember
Determine whether the ratio is part to part or part to whole.
Calculate the parts and the whole if needed.
Plug values into the ratio.
Simplify the ratio if needed. Integer-to-integer ratios are preferred.
Mary has some money to purchase furniture for her home. She bought a television that cost $1400. She spent 40% of the remaining money on a bed. If the bed cost 25% as much as the total amount of money she had at first. What is the difference between the cost of the television set and the bed?
Answer:
The difference $2.733.30
Step-by-step explanation:
Let the total money be x
The remaining money will be (x-1400)
40% of this on a bed
= 40/100 (x-1400)
= 0.4(x-1400)
cost of bed is 25% of x
Thus;
0.4(x-1400) = 25/100 * x
0.4(x-1400) = 0.25x
0.4x - 560 = 0.25x
0.4x-0.25x = 560
= 0.15x = 560
x = 560/0.15
So the difference between the tv and. bed, will be ;
560/0.15 - 1400
= (560-210)/0.15 = $2,333.33
Figure B is the image of Figure A when reflected across line ℓ. Are Figure A and Figure B congruent
Answer:
If they are reflection. I think they are congruent
Step-by-step explanation:
21. Translate the statement below.
"A number is no more than 50"
A. x < 50
B. x less than or equal to 50
C. x > 50
D. x is greater than or equal to 50
the air pressure P is inversely proportional to the altitude h. write the related variation equation
Answer:
For a confined, constant volume of gas, the ratio
P
T
is therefore constant (i.e.,
P
T
=
k
). If the gas is initially in “Condition 1” (with P = P1 and T = T1), and then changes to “Condition 2” (with P = P2 and T = T2), we have that
P
1
T
1
=
k
and
P
2
T
2
=
k
, which reduces to
P
1
T
1
=
P
2
T
2
Select all of the points that are in the solution set graphed below.
A driver travels from Town A to Town B at a speed of 75km/hr and covers a distance of 150km. He then travels from Town B to Town C for 3 hours at a speed of 80km/hr. Find the average speed from Town A to Town C
chal khud kar solve
nikal yahann se, khud mehnat se solve kar
A cop wrote 380 citations for warnings and speeding tickets. Of these there were 40 more warnings and speeding tickets. How many warnings and speeding tickets were issued?
Answer:
210 warnings and 170 speeding tickets
Step-by-step explanation:
Add them together and you get 380.
210 is 40 more than 170
Can someone help me with this question? Will give brainliest :) (valid answers only or you’ll be reported)
Answer:
y=-5x-8
Step-by-step explanation:
Answer:
...
Step-by-step explanation:
Determine if this is a valid statistical question: What proportion of New Jersey residents would choose vanilla as their favorite ice cream flavor? *
Write the simplest polynomial function for each set of zeros
Zeros = -2, 5, -1
Answer:
The polynomial is ;
x^3 -2x^2 -13x - 10
Step-by-step explanation:
Given the zeros, we set them to equal zero so as to get the linear factors
Mathematically, that will be as follows;
x = -2
x + 2
x = 5
x-5
x = -1
x + 1
So we have the polynomial as;
(x + 1)(x + 2)(x-5)
= (x -5)(x^2 + 3x + 2)
= x^3+ 3x^2 + 2x -5x^2 -15x - 10
= x^3 -2x^2 -13x - 10
There are 159 students to be grouped in math teams. Each team is to have the same number of students. Can each team have 3, 4, 5 or 6 students?
Answer:
3 students for each team
Step-by-step explanation:
Answer:
Each team can have 3 students.
Step-by-step explanation:
159 students grouped in three's = 159/3=53
The same thing goes for if they were grouped in 4's, 5's, or 6's.
159/4=39.75 159/5=31.8 159/6=26.5
And since you cant divide single students into splits objects, 3 is
the only solution that works.
Hope this helps. :)
Help I give 20 points answer ASAP
Answer:
-1
Step-by-step explanation:
Answer ANd ILL GIVE BRAINLIEST first both of them tho or ill take it down sorry
Answer:
y=2.50x+500
x= number of calenders
y= total cost
Cameron can make 1150 calanders
9. y=5x
Step-by-step explanation:
2.5 x 1150 + 500 =3375
Plz help!! (I just copied and pasted it)
The video store rents DVDs for $3.00 each and video games for $4.50 each. Write an equation in standard form for the number of DVDs d and video games g that a customer could rent with $18. Graph the equation and give me three combinations of DVD’S and video games.
Step-by-step explanation:
3d + 4.5g <= 18.
3 possible combinations are:
0 DVD and 4 Video games,
1 DVD and 3 Video games,
2 DVDs and 2 Video games.
Answer:
3 possible combinations are:
0 DVD and 4 Video games
1 DVD and 3 Video games
2 DVDs and 2 Video games
Step-by-step explanation:
help helppp help i need answerr thank Uuuuuuuuu
Answer:
see explanation
Step-by-step explanation:
(a)
The angles are vertical and congruent, that is
x - 10 = 125 ( add 10 to both sides )
x = 135
-------------------------------------------------
(b)
Supplementary angles sum to 180°
The angles are in the ratio 2 : 3 = 2x : 3x ( x is a multiplier ), then
2x + 3x = 180
5x = 180 ( divide both sides by 5 )
x = 36
thus
2x = 2 × 36 = 72
3x = 3 × 36 = 108
Then the 2 angles are 72° and 108°
Now you can mark them brainliest.
I NEED HELP WITH THIS ( IM IN LIVE ADN I NEED IT DONE TODAY)
all you need to do is explain it.
Can someone help me with this math problem? “Solve the equation for y, if it’s not already solved for. If already solved for, type already solved.”
the equation: 5x+3y=15
Answer:
y=(-5/3x)+5
Step-by-step explanation:
so you want to isolate the variable of y.
5x+3y=15
5x+3y-5x=15-5x
3y=-5x+15
3y/3=(-5x+15)/3
y=(-5/3x)+5
i am in algebra two so you can trust my answer. if you need more help, lmk in the comments. happy holidays and stay safe!
^^down plz help I’ll make another question and give u brainlist plus brainlist on this question
Answer:
i believe it is 5 im not sure
Step-by-step explanation:
If there are 30 boys and 20 girls in a room, fill out all of the possible ratios of boys to girls that could be made.
Answer:
3 to 2, 6 to 4, 18 to 6, etc.
As long as you multiply 3 and 2 by the same number, you will get a correct answer to this problem.
Step-by-step explanation:
boys to girls
30 to 20
3 to 2
PLEASE HELP ME.
The coordinates for the vertices of quadrilateral ABCD are A(-3,2) B(-2,6) C(2,7) and D(1,3). Use this information to answer the questions below.
Slope of side AB:
A. 1/4
B. 4/1
C. -1/4
D. -4/1
Slope of side CD
A. 1/4
B. 4/1
C. -1/4
D. -4/1
Slope of side DA
A. 1/4
B. 4/1
C. -1/4
D. -4/1
Classify the quadrilateral
A. Square
B. Rectangule
C. Rhombus
D. Parallelogram
E. Trapezoid
Answer:
B, B, A
Step-by-step explanation:
I don't know number 4 answer. hope I helped
what is x and y. use a decimal
Answer:
X= 3/5 Y= -3
Step-by-step explanation:
Answer:
Step-by-step explanation:
m<L =60 angle addition post
MLP is equialateral def of equialateral
5x-3=4 def of equialateral
2y+6=4 def of equialateral
x=1.4 solve
y=-1 solve
The table below compares a number of shirts bought at a store to the cost of the shirts
4
Number of Shirts
Cost In Dollars
1
1 x 10
2
2 x 10
3
3 x 10
4 x 10
a. Write an expression that represents the cost of s number of shirts,
Answer:
doom
Step-by-step explanation:
A lamborghini traveled 220 miles in 4 hours. How many miles does the lamborghini drive per hour (speed)?
Answer:
55 mph
Step-by-step explanation:
220m per 4 hours
so 220 devieded by 4 gives u your answer
Answer:
55 miles
Step-by-step explanation:
220/4=55
55 mph
55mph times 4 hours
A polynominal function that describes an enclosure is v(x)=1500x_x2 where x is the length of the fence in feet what is the maximum area of the enclosure
Answer:
The answer is below
Step-by-step explanation:
A polynominal function that describes an enclosure is v(x)=1500x-x2 where x is the length of the fence in feet what is the maximum area of the enclosure
Solution:
The maximum area of the enclosure is gotten when the differential with respect to x of the enclosure function is equal to zero. That is:
V'(x) = 0
V(x) = x(1500 - x) = length * breadth.
This means the enclosure has a length of x and a width of 1500 - x
Given that:
v(x)=1500x-x². Hence:
V'(x) = 1500 -2x
V'(x) = 0
1500 -2x = 0
2x = 1500
x = 1500 / 2
x = 750 feet
The maximum area = 1500(750) - 750² = 562500
The maximum area = 562500 feet²
Answer:
562500 feet²
Step-by-step explanation:
A student uses 1/2 quart of paint in 3/4 hour. What is her usage rate in quarts per hour?
ASWER CHOICES
38 quart per hour
23 quart per hour
34 quart per hour
32 quarts per hour
Answer:
1 1/2 quarts per hour
Step-by-step explanation:
To do this you would divide 3/4 by 1/2 to do divide you flip 1/2 to 2/1 then multiply.
3/4*2/1=6/4 which is also equal to 1.5 quarts of paint per hour.
Assume y varies directly with x. If y = 80
when x = 8, find x when y = 40.
Answer:
4
Step-by-step explanation:
There are 132 eighth-grade students at Hoover Middle School. If there are 6 eighth-grade teachers, how many students are there per teacher?
A. 18 students per teacher
B. 22 students per teacher
C. 24 students per teacher
D. 16 students per teacher
Use the Pythagorean Theorem to find the length of the hypotenuse in the triangle shown below.
16
30
Answer:
the answer is 34.
Step-by-step explanation:
the Phythagorean theorem is a^2 + b^2 = c^2.
I hope this helped and if it did I would appreciate it if you marked me Brainliest. thank you and have a nice day!
What is the range of this function? Help
Answer:
Range is the extension of the values across the x-y plane. We can see the data extends as far as -13 and as far as 11 so (-13,11)
