Answer:
Step-by-step explanation:
Area of rectangle = length * width
length = Area ÷ width
= 8 1/10 ÷ 2 1/4
= 81/10 ÷ 9/4
[tex]=\dfrac{81}{10}*\dfrac{4}{9}\\\\\\=\dfrac{9}{5}*\dfrac{2}{1}\\\\=\dfrac{18}{5}\\\\\\= 3\dfrac{3}{5}[/tex]
Find the slope
X: 1, 5, 9, 13
Y: 1, 17, 33, 49
Answer:
Step-by-step explanation:
Givens
Take any two points (9,33) and (5,17)
Use the slope formula to determine what the slope might be
m = (y2 - y1)/(x2 - x1)
y2 = 33
y1 = 17
x2 = 9
x1 = 5
Solution
m = (33 -17) / (9 - 5)
m = 16/4
m = 4
Extra
Use 5,17 to get the y intercept
x = 5
y = 17
y = 4x + b
x = 5
y = 17
Use the general equation for a line: y = 4x + b and solve for b
17 = 4*5 + b
17 = 20 + b
b = - 3
So the line equation is y = 4x - 3
I did this extra work because I did not believe that 1,1 could be a solution for this equation given the other numbers. Turns out I was wrong. y = 4x - 3 has all 4 points on the line.
F = 1.8 C + 32
(a) Work out the value of F when C = -8
Answer:
17.6°
Step-by-step explanation:
1.8x-8=-14.4
-14.4 + 32= 17.6°C
don’t get it. someone help. algebra 1!
Answer:
+2
Step-by-step explanation:
The student council at Greenwood High School is making T-shirts to sell for a fundraiser, at a price of $19 apiece. The costs, meanwhile, are $8 per shirt, plus a setup fee of $88. Selling a certain number of shirts will allow the student council to cover their costs. What will the costs be? How many shirts must be sold?
Answer:
19-8=11,11*n>=88,n>=8 ，8*119-8=11,11*n>=88,n>=8 9=152
Step-by-step explanation:
Unit price - cost = unit profit
When unit profit * quantity > = Installation cost, achieve positive profit
A system of equations is shown. x = 10 3x + 5y = 20
Answer:
(10, - 2 )
Step-by-step explanation:
x = 10 → (1)
3x + 5y = 20 → (2)
Substitute x = 10 into (2)
3(10) + 5y = 20
30 + 5y = 20 ( subtract 30 from both sides )
5y = - 10 ( divide both sides by 5 )
y = - 2
solution is (10, - 2 )
What is the period of y=2cos(3x-2(3.14))?
A. 3(3.14)
B. 6(3.14)
C. 3(3.14)-2
D. 3(3.14)/3
Answer:
the correct answer is B
Step-by-step explanation:
I got it correct on 2021 edge
Cost $95 markup rate: 50%
PLS ANSWER THIS WITH AN EXPLANTION AND THE ANSWER 10 POINTS *PLS I NEED AN EXPLANTION (DONT ASK WHY THIS IS IN ALL CAPS) *ITS IN ALL CAPS SO YOU GUYS A SEE THIS CLEARLY*
By rounding to 1 significant figure, estimate40.73×1.06
Answer:
40
Step-by-step explanation:
40.73 rounded to 1 sig. fig is 401.06 rounded to 1 sig. fig is 140.73 × 1.06 ≈ 40 × 1 = 40.Hope this helps!
answer please!!!!!!!!!!!!!!!!!
Please answer the problem in the picture.
Answer:
The answer is 9/20. is not negative !
-2a < -2 and -4a > -40
Answer:
a < 1 < 10
Step-by-step explanation:
We seperate the statements
-2a < -2
-4a > -40
-a > -1
a < 10
a < 1
a < 10
Combine them again
a < 1 < 10
Mr. Kelly is 7 years younger than five times Reem's age. The sum of their ages is 77. How old is
Mr. Kelly?
Answer:
14 y/o
Step-by-step explanation:
assuming that Reem's age is X y/o,
Kelly's age= 5x - 7
according to the question,
(x)+(5x - 7) = 77
or, 6x= 77+7
or, x= 84/6
therefore, x= 14
Which of the following functions best describes this graph?
Answer:
c
Step-by-step explanation:
y=x2-5x+6
1. A shopkeeper buys a stove from a manufacturer. The shopkeeper sells the stove for $2700 at a profit of 25%.
(a) What is the cost price of the stove to the shopkeeper from the manufacturer? (4 marks)
(b) If the shopkeeper gives a 15% discount for cash, how much money does a customer pay for the stove?
Answer:
a.divide the amount by the percentage.
$2700× 25%
Ans:$675
subtract the selling price from the profit.
$2700 - $675
Ans:$2025
b.divide the 15% from selling price.
$2700 × 15%
Ans: 405
deduct the selling from from the discount given.
$2700 - $405
Ans: $2,295
can someone help
me on one of these please!
Please help me answer these questions and explain why... I will mark you brainliest and rate you five stars
How you calculate this is this:
So, any two given sides much be greater than the other side.
7. The answer is no. 1 plus 5 is 6 right? 6 is less than 11, so it can never be a triangle.
8. The answer is yes. 3 plus 6 is greater than 7. 3 plus 7 is greater than 6. 6 plus 7 is greater than 3.
9. The answer is yes. 9 plus 11 is greater than 12. 9 plus 12 is greater than 11. 11 plus 12 is greater than 9.
evaluate (8+t)^3when t=2
Answer:
1000
Step-by-step explanation:
( 8 + t) ³ when t = 2 substitute 2 for t and solve
= ( 8 + 2)³
= (10)³
= 10 × 10 × 10
= 1000
Pls do this for me thx
m<S is 20°..........
.........
HELP ASAP PLEASE!!!!
In ΔABC , ∠B = ∠C, AB = 9x - 11, BC = 4x +1, and AC = 7x - 3 . Find the value of x
Answer:
Here, AB = AC [ /_ B = /_ C ]
or, 9x - 11 = 7x -3
or, 9x - 7x = 11 -3
or, 2x = 8
or, x = 4
Please help make sure to show your steps too, please
Answer:
Slope = -2
Step-by-step explanation:
Given the two points, (-4, 10) and (0, 2), the error in the given problem is the incorrect substitution of values into the formula. It should have been formatted as follows:
Let (x₁, y₁) = (-4, 10)
(x₂, y₂) = (0, 2)
The formula for solving for the slope of the line is:
m = (y₂ - y₁)/(x₂ - x₁)
where m represents the slope of the line.
Substitute the given values into the formula to solve for the slope:
m = (y₂ - y₁)/(x₂ - x₁)
[tex]m = \frac{2 - 10}{0 - (-4)}[/tex]
[tex]m = \frac{-8}{0 + 4 }[/tex]
m = -8/4
m = -2
Therefore, the slope of the line is -2.
What is 2x + 45?
Plz help, Wanna T.a.l.k?
Answer:
It is linear
Step-by-step explanation:
I don't know if you needed it graphed or what was needed to solve your question
Need 1 and 2 answered please.
Answer:
mark me brainliest bro
Step-by-step explanation:
haha daisuki haha
which year in the 18th century was a perfect square
Answer:
THE dates dec. 6 1729, and june 4 1764 were the only two perfect square dates in the 18th century
PLS HELP ME IMMA CRY ONG
Since on the left, the top number is 2 less than the bottom number and on the right side, the top number is 2 less than the bottom number, you can conclude that s = 55.
Answer: 55
Step-by-step explanation:
I let Math- way do it
1.Reshma wishes to mix two types of food P and Q in such a way that the vitamin contents of the mixture contain at least 8 units of vitamin A and 11 units of vitamin B. Food P costs Rs 60/kg and Food Q costs Rs 80/kg. Food P contains 3 units /kg of vitamin A and 5 units /kg of vitamin B while food Q contains 4 units /kg of vitamin A and 2 units /kg of vitamin B. Determine the minimum cost of the mixture?
Answer:
I don't forget you. ........
In a company, the ratio of the number of men to the number of women is 3:2 40% of the men are under the age of 25 10% of the women are under the age of 25 What percentage of all the people in the company are under the age of 25? %
Answer: Percentage of all the people in the company are under the age of 25=x
Step-by-step explanation:
We have to use the weighted average.
x=(Σwi * vi )/Σ wi
w₁=3
w₂=2
v₁=40%
v₂=10%
x=[3(40%)+2(25%)] / (3+2)=34%
Solution: 34% of all people in the company are under the age of 25.
what does this equal please help
Answer:
I believe it equals 25
Step-by-step explanation:
3 times 6 = 18 + 4 = 22 + 2 three times which is 8 so 22+8= 30 - 5 = 25
work out the size of angle x
Answer:
66 degrees
Step-by-step explanation:
All angles together equal 180.
79 + 35 = 114
180 - 114 = 66
or
180 - (79 + 35) = 66
I hope that this helps!
Please Answer this (mathematics)
Answer:
50.21, 50.12, 50.102,50.021
the last one
Step-by-step explanation:
sorted into descending order
Find the value of x and y.
Answer:
x=8
y=3
Step-by-step explanation:
the triangle on the right side is equilateral, therefore also equiangular, which means each angle is 60 degrees
that means that 4x-2 = 30; 4x = 32; x = 8
also means that 7y+9 = 180-(90+60); 7y+9 = 30; 7y = 21; y = 3
