Answer: Yes
If I remember correctly, I believe these ordered pairs indicate a function, as there is exactly 1 output for every input (i.e., (output, input)). If there were 2 inputs of the same number, that'd make this relation not a function.
Four chairs and two tables cost £218.
Six chairs and seven tables cost £587.
Find the total cost of buying twenty chairs and five tables.
Answer:
x = cost of a chair = £22
y = cost of a table = £65
£765
Step-by-step explanation:
Let
x = cost of a chair
y = cost of a table
4x + 2y = 218 (1)
6x + 7y = 587 (2)
Multiply (1) by 6 and (2) by 4
24x + 12y = 1,308 (3)
24x + 28y = 2,348 (4)
Subtract (3) from (4) to eliminate x
28y - 12y = 2,348 - 1,308
16y = 1,040
y = 1,040/16
y = 65
Substitute y = 65 into (1)
4x + 2y = 218 (1)
4x + 2(65) = 218
4x + 130 = 218
4x = 218 - 130
4x = 88
x = 88/4
x = 22
x = cost of a chair = £22
y = cost of a table = £65
Find the total cost of buying twenty chairs and five tables
20x + 5y
Substitute the values of x and y
20x + 5y
= 20(22) + 5(65)
= 440 + 325
= £765
Can any one help with this one?
Solve for x.
[tex] {x}^{2} - 13x + 12 = 0[/tex]
Answer:
Solution given:
[tex] {x}^{2} - 13x + 12 = 0[/tex]
doing middle term factorization
x²-12x-x+12=
x(x-12)-1(x-12)=0
(x-12)(x-1)=0
either
x=12
or
x=1
value of x is 1 or 12.
Isaac invested $1,800 in an account paying an interest rate of 4.7% compounded continuously. Assuming no deposits or withdrawals are made, how much money, to the nearest hundred dollars, would be in the account after 15 years?
Answer:
First, convert R as a percent to r as a decimal
r = R/100
r = 4.7/100
r = 0.047 rate per year,
Then solve for A,
[tex]A = P\cdot e^{rt}\\\\A= 1800 \cdot (2.71828)^{(.047)(15)}, \ where \ e = 2.71828\\A = 3642.92[/tex]
The amount he receives after 15years $3,642.92
If a rectangular. Prism. Has 5cm. 10cm on one side and 4cm on the. Other. What is the volume of the rectangle?
Answer: [tex]200\ cm^3[/tex]
Step-by-step explanation:
Given
The dimension of the rectangular prism is
[tex]l=5\ cm\\w=10\ cm\\h=4\ cm[/tex]
The volume of the prism is given by [tex]V=l\times w\times h[/tex]
[tex]\Rightarrow V=5\times 10\times 4\\\Rightarrow V=200\ cm^3[/tex]
Therefore, the volume of the prism is [tex]200\ cm^3[/tex].
Find the surface area of the cone. h = 12 ft, r = 5ft, l = 13 ft
Answer:
total surface area is 267.14
Answer:
90π ft^2.
Step-by-step explanation:
SA = πr(r + l)
= 5π(5 + 13)
= 90π
Which polynomial function has zeros at -3, 0, and 4?
f(x) = (x + 3)(x2 + 4)
f(x) = (x2 - 3)(x - 4)
f(x) = x(x + 3)(x - 4)
f(x) = x(x - 3)(x + 4)
Answer:
If 5 is zero then (x - 5) is a factor.
Only 4. has this factor.
Step-by-step explanation:
Andrew has a coupon for 30% off his purchase at an electronics store . If he buys a $ 199 television , how much does he pay?
Answer:
$139.3
Step-by-step explanation:
30% of 199 is 59.7
Then you subtract that from 199 to get your answer
Which of these expressions represents the product of t and 13
A. 13- t
B. 13t
C. 13+ t
D. 13 divided by t
Answer:
B is your answer for your math problem
find the number of combinations: 9C5
Answer:
9 is the answer :)
Step-by-step explanation:
3 * 3 is 9
Solve
7x+2y=16
5x-2y=20
x= y=
(3 marks)
simplify (21a² × 21a⁴) ÷ (21a² × 21a²)
AREA OF CIRCLES HELP PLS
Answer:
12
Step-by-step explanation:
Answer:
48in^2
Step-by-step explanation:
8/2=4
3 x 4 x 4= 48
Write an explicit formula for an, the nth term of the sequence 21, 27, 33...
Answer:
Tn=6n+15
Step-by-step explanation:
Tn=6n+15
T9=6*9+15
T9=54+15
T9=69
x x
110°
y
70
y = [ ? ]
Answer:
y=90
Step-by-step explanation:
Add both numbers
110 + 70=180
divide by 2
180 ÷ 2 = 90
Answer:
y=90
hope that helps
PLEASE HELP ME ASAP NEED IN FIVE MIN. PLEASE NO LINKS OR FILES. I WILL MARK BRIANYLEST AND I AM GIVEING 10 EXTRA PIONTS AS WELL.
In a survey, 9 people reported how many soft drinks they drank in the last month. Here are their responses:
29, 30, 31, 33, 35, 36, 37, 38, 87. .
Which measure should be used to summarize the data?
1. Mean
2. Median
3. Mode
Answer:
id say the mean
Step-by-step explanation:
Answer: Mean
Step-by-step explanation: It's the average value.
help......................
Simplify the below expression.
Answer:
x^4
Step-by-step explanation:
solve for x helpp plz !
Answer:
5
Step-by-step explanation:
I NEED HELP PLEASEEE ILL PUT BRAINIEST PLEASE
Answer:
A. 26
Step-by-step explanation:
45/30=39/x
Cross multipy.
1170=45x
Divide by 45.
Answer is 26.
I need help on this
Answer:
1200
Step-by-step explanation:
Step 1 convert pounds to ounces
1 pound = 16 ounces
So to convert pounds to ounces we multiply by 16
1500 * 16 = 24000
So there are 24000 ounces in 1500 pounds
Step 2 Find how many 20 ounce containers he can fill.
To find out how many 20 ounce containers he can fill we divide the total amount of ounces of butter that he has by 20
So answer = 24000/20
24000 / 20 = 1200
Therefore he can fill 1200 20 - ounce containers
Helppppppppppppppppppppppppppppppppp
Answer 4:00pm= 15
Step-by-step explanation:
45 plus 15 is 4:00
heyy! i’ll give brainliest please help
Answer:
C
Step-by-step explanation:
THE THIRD CHOICE
Answer: I would say B is the answer because you should never capitalize those directions
(please stop taking my points with nonsense answers this is the second time im asking now..)
The top deck of a boat is 9 feet above the surface of a lake, while the bottom of the boat is 24 feet below the surface of the lake.
What is the vertical distance between the top deck and the bottom of the boat?
Drag and drop the correct value into the box to complete the statement.
The vertical distance is ____ feet.
Hi there!
[tex]\large\boxed{33 \text{ feet}}[/tex]
We can find the distance with this expression:
Height(top deck) - Height(bottom) = distance
The top deck has a height of positive 9 feet, while the bottom of the boat has a height of -24 feet since it is BELOW the surface of the lake.
Thus:
9 - (-24) =
Subtracting a negative becomes a plus, so:
9 + 24 = 33 feet.
Answer:hi
Step-by-step explanation:
hi
A letter in the word COURAGE is chosen at random, then a coin is tossed three times. How many outcomes are possible?
Answer:
I think about 10
Step-by-step explanation:
Answer:
in the first one there are 7 outcomes
and in the second one there are hhh ,the,hth,tht, . h means head and t means tail
what fraction is equivalent to negative 3 over 2
Answer:
-6/4
Step-by-step explanation:
What is the leg rule
Answer:
The right triangle altitude theorem or geometric mean theorem is a result in elementary geometry that describes a relation between the lengths of the altitude on the hypotenuse in a right triangle and the two line segments it creates on the hypotenuse.
Step-by-step explanation:
Was definetly not copy and pasted from g.o.o.g.l.e. no siree
please help me quickk
Answer:
x = 4.
Step-by-step explanation:
4 - 5x = 12 - 7x
4 - 5x + 7x = 12 - 7x + 7x
4 + 2x = 12
4 - 4 + 2x = 12 - 4
2x = 8
x = 8/2 = 4.
Answer:
4-5x=12-7x
-5x+7x=12-4
2x=8
x=8/2
x=4
Step-by-step explanation:
How can I find the area of the shaded area?
Find the 97th term of the arithmetic sequence 17, 26, 35, …
Answer:
881
Step-by-step explanation:
The pattern is add 9. We can see that 3 numbers of the 97 are given. Which means there are 94 unknown numbers. 94 times 9=846. 35 is the last number given. add 846 to 35 and you get 881. therefore, your answer is 881.
ppppppllllzzz help whats the opposite of 1.5
Answer:
Step-by-step explanation:
-2.3?