Answer:
- sold 15 desks + chairs
- each desk is $120
- each chair is $50
- total amount is $960
- desk = d
- chairs = c
(a) i/ d + c = 15
ii/ 120d + 50c = 960
(b) d+c = 15 --------- (1)
120d + 50c = 960 --------(2)
from (1) d+c = 15
c = 15-d --------- (3)
substitute (3) into (2)
120d + 50c = 960
120d + 50(15-d) = 960
120d + 750 - 50d = 960
120d - 50d = 960 - 750
70d = 210
d = 210/70
d = 3
substitute d=3 into (3)
c = 15-d
c = 15-3
c = 12
thus, 3 desks and 12 chairs were sold
If x= - 2 is a solution to the equation f(x) = g(x), which one of these statements must be true?
• The graphs of f and g intersect each other at x = -2
• The graphs of f and g intersect each other at x = 2
• The graphs of f and g intersect the x-axis at -2
• The graphs of f and g intersect at the y-axis at -2
Answer:
C
Step-by-step explanation:
HELP PLEASE AWARDING BRAINLIEST IF CORRECT
Answer:
y=1/4x+9
Step-by-step explanation:
x-4y=-36
add 4y to both sides to find x
x=4y−36
To find y=
add -x to both sides
−4y=−x−36
divide both sides by -4
y=mx+b
y=1/4x+9
Luna entered a raffle for a new pair of running shoes. She purchased 20 tickets and was told that she had a 20% chance of winning. How many tickets were sold? P (Luna winning) = StartFraction Number of tickets purchased over Total number of tickets sold EndFraction. 20 percent = StartFraction 20 over x EndFraction. One-fifth = StartFraction 20 over x EndFraction. x = tickets
Answer:
100 ticketsStep-by-step explanation:
Probability of winning = amount of tickets purchased/Total number of tickets
20% = 20/total number of tickets
20/100 = 20/total number of tickets
cross multiply
20 * total number of tickets = 20 * 100
20 * total number of tickets = 100
total number of tickets sold = 100 tickets
Answer:
100 tickets
Step-by-step explanation:
Hi and goodbye
Someone help me pls!!!!!!
Answer:B
Step-by-step explanation:
This formula gives the yearly depreciation D for
an item in terms of its cost C, its salvage value
S, and the number of years 71. Solve the
equation below for C.
C-S
De
Answer:
C = 71D + S
Step-by-step explanation:
The computation of the equation for C is as follows:
Given that
Yearly Depreciation = D
Cost = C
Salvage value = S
Number of years = 71
Based on the above information
The formula for the yearly depreciation i.e. D is
D = (C - S) ÷ 71
71D = C - S
71D + S = C
So, the equation would be
C = 71D + S
need help ASAP!!!! last minute hw i need to do
Our range is all set of y-values. Focus on y-value only.
Our range is {1,5,-1,7,-2}
So the answer is 1, 5,-1,7 and 2
Find a vector that has the same magnitude as v.
v=lineAB with A=(4,0) and B=(7,4)
[A] t
[B] u
[C] w
[D] r
This is the one that will decide my note, help once more please
Answer: x = 17
Step-by-step explanation:
180 - 94 = 86
So all the inside angles of a triangle = 180
180 - 86 - 60 = 34
34/2 = 17
Answer:
it's answer is 17
Step-by-step explanation:
we know exterior angle of a triangle is equal to the sum of two opposite interior angles. So,
2x + 60° = 94°
2x = 94° - 60°
2x = 34°
x = 34° /2
x = 17°
Latoya made 2 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for both necklaces was $8.40. If the beads cost $2.70 for each necklace, how much did each ppendant cost
I'll give brainiest if correct :)
Answer:
its 2.60 for each pendent
Which of the following equations represents the greatest value of x?
Equation 1
Equation 2
Equation 3
Equation 4
x2 = 35
x3 = 64
x3 = 125
x2 = 38
Equation 1
Equation 2
Equation 3
Equation 4
Answer:
equation 3
Step-by-step explanation:
Answer:
Equation 3
Step-by-step explanation:
125/3=41 which is the greatest
(can I get brainliest please)
If Koran and Mai start a bike trip at the same time, how far are they after 24 minutes?
HELP!! ILL GIVE BRAINLIEST!!!! PLS SPSPLSPSLSPSLS
Michelle is debating between two different mortgages for $184,000. She found a 20-year fixed rate loan at 7.05% and 15-year fixed rate loan at the same rate. How much more interest will she pay for the 20-year loan versus the 15-year loan?
9514 1404 393
Answer:
$45,081
Step-by-step explanation:
The amortization formula can be used to find the monthly payment.
A = P(r/12)/(1 -(1 +r/12)^(-12t))
For the 20-year loan with r=0.0705 and P=184,000, the monthly payment is ...
A = $1432.08
The total amount repaid will be ...
12×20×1432.08 = 343,699.20
__
For the 15-year loan with the same parameters, the monthly payment is ...
A = 1658.99
and the total amount repaid is ...
12×15×1658.99 = 298,618.20
The difference in these repayment amounts is the difference in interest charges:
343,699.20 -298,618.20 = 45,081
The 20-year loan will cost $45,081 more than the 15-year loan.
Please Help!!!
(screenshot provided)
I have to find the value of X and Y in both questions. This is due today so please help ASAP!
Answer:
2. x=5
y=10
3. x=21
y=4
Step-by-step explanation:
2. 13y=20x+3y 10y=20x
8x+y=180-13y 14y=180-8x
y=2x plugging that into 14y=180-8x 28x=180-8x 36x=180 x=5
plug x into 10y=20x 10y=100 y=10
3. 3(x+y)=(4x-9) 3x+3y=4x-9 x=3y+9
5x=180-4x+9 9x=189 x=21
plug 21 into x=3y+9 21=3y+9 12=3y 4=y
During 16 seasons in the NHL, Wayne Gretzky scored 50% more points than anyone who ever played professional hockey. He accomplished this amazing feat while playing in 280 fewer games than Gordie Howe, the previous record holder. Here are the number of games Gretzky played during each season:
79 82 80 80 74 84 84 79 64 78 73 78 74 86 45 53
Create a box and whisker plot for this data
Determine whether or not there are outliers present
In the form of a paragraph, explain in complete sentences the steps necessary to create the box and whisker plot and to determine whether or not outliers are present. Complete your work in the space provided or upload a file that can display math symbols if your work requires it.
si una porcion es de 228 gramos cuantos gramos contiene el producto
Answer: 456 gramos.
Step-by-step explanation:
Con una busqueda online, encontré que la imagen relacionada con este problema es la que se ve abajo.
En ella podemos ver que el envase del producto trae dos porciones.
Entonces, si una porción tiene 228 gramos, dos porciones son:
2*228 g = 456 gramos.
Y el envase tiene dos porciones, entonces el envase tiene 456 gramos.
Find the domain and range please
Answer:
-2 is the domain
2 is the range.
Nooooooooooooooooooooooo
Answer: yes
Step-by-step explanation:
Simply just yes
Answer:
YESSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
Step-by-step explanation:
please help ill mark brainliest if correct
The answer is A) (3.1, 2.2)
Answer:
A
Step-by-step explanation:
Given the 2 equations
y = 2x - 4 → (1)
2x + 4y = 15 → (2)
Substitute y = 2x - 4 into (2)
2x + 4(2x - 4) = 15 ← distribute and simplify left side
2x + 8x - 16 = 15
10x - 16 = 15 ( add 16 to both sides )
10x = 31 ( divide both sides by 10 )
x = 3.1
Substitute x = 3.1 into (1) and evaluate for y
y = 2(3.1) - 4 = 6.2 - 4 = 2.2
solution is (3.1, 2.2 ) → A
2 to the -3 power over 2 to the -2 multiply 2 to the 6 power.
Step-by-step explanation:
Please gimme brainliest
I hope it's correct
Write (-2 − 2i) + (10 − 4i) as a complex number in standard form.
A.
-4 + 6i
B.
8 − 6i
C.
6
D.
12 − 6i
Answer:
I WILL DO ANYTHING FOR YOU TO RESPOND
Step-by-step explanation:
please
What is the place the 8 is in in the number 38,341,097.54
Tablets are on sale for 15% off original price with the function p(t)=0.85t
What is the next term of the arithmetic sequence? -3,0,3,6,9,−3,0,3,6,9,minus, 3, comma, 0, comma, 3, comma, 6, comma, 9, comma
Answer:
12
Step-by-step explanation:
Given the arithmetic sequence :
-3,0,3,6,9
Using the relation :
Tn = a + (n- 1) d
d = common difference = t2 - t1 = 0 - (-3) = 3
The next term = 6th term ; n = 6
a = first term
T6 = - 3 + (6 - 1)3
T6 = - 3 + (5)3
T6 = - 3 + 15
T6 = 12
1/5+1/3 answer and 3/4-1/8
Answer:
1/5 + 1/3 = 8/15
3/4 - 1/8 = 5/8
the daily wages of 80 workers of a factory:-
DAILY WAGES ($): 500-600,600-700,700-800,800-900,900-1000
12,,,,,,,,,,,,17,,,,,,,,,,,,,,28,,,,,,,,,,,,,14,,,,,,,,,,,,,,9
NO.OF WORKERS
find the mean of daily wages of the workers of the factory by using an appropriate method [step diviation method]
Answer:
1)mean =738.75
solution------->
Given
1) as per given informtaion for question no 1
daily wages. number of worker
500-600 12
600 -700 17
700-800 28
800-900 14
900 -1000 9
[tex]mean=\frac{fx}{x} \\or \frac{59100}{80} \\or 738.75[/tex]
Hope this helps ;D
Step-by-step explanation:
is this the table u r trying to do??
which phrase is usually associated with addition
Help me guys plsss!!!!!
Answer:
I have no idea
Step-by-step explanation:
solve the system of equation
2x-y-3z=20
3x+y+6z=4
x+2y+9z=-16
What is the fractional form for point A? Options: -3/4 -1/4 1/4 7/8
What is the approximate decimal form for point B? Options: 1.2 1.16 -1.16 0.857
Answer: A -3/4
B 1.6
Step-by-step explanation:
Answer:
A and B
Step-by-step explanation:
just did the quizz good luck <3