Answer:
Number of apples = 6
Number of oranges = 5
Step-by-step explanation:
At a store, apples cost $0.80 each and oranges cost $0.95 each. Harry buys some apples and oranges and spends $9.55. He buys a total of 11 pieces of fruit.
Let
Number of apples = x
Number of oranges = y
x + y = 11 (1)
0.80x + 0.95y = 9.55 (2)
From (1)
x = 11 - y
Substitute into (2)
0.80x + 0.95y = 9.55 (2)
0.80(11 - y) + 0.95y = 9.55
8.8 - 0.80y + 0.95y = 9.55
- 0.80y + 0.95y = 9.55 - 8.8
0.15y = 0.75
y = 0.75/0.15
y = 5
Substitute y = 5 into (1)
x + y = 11 (1)
x + 5 = 11
x = 11 - 5
x = 6
Number of apples = 6
Number of oranges = 5
Cual es el valor de un esfero cuando la docena se compra en $7848? Area de un triangulo de 9 unidades de base y 6 unidades de altura? Cien veces la suma de 4.5 con 2.71 Porfavooor es para una tarea de mañana D:
Answer:
a) $654
b) 27 unidades cuadradas
c) 721
Step-by-step explanation:
a) ¿Cuál es el valor de un bolígrafo cuando la docena se compra por $ 7848?
Una docena = 12
Por eso:
12 bolígrafos = $ 7848
1 bolígrafo = $ x
Cruz multiplicar
12 bolígrafos × $ x = 1 bolígrafo × $ 7848
$ x = 1 bolígrafo × $ 7848/12
$ x = $654
b) Área de un triángulo ¿9 unidades de base y 6 unidades de altura?
Área de un triángulo =
= 1/2 × Base × Altura
1/2 × 9 × 6
= 27 unidades cuadradas
c) Cien veces la suma de 4.5 con 2.71
Esto se calcula como:
100 × (4,5 + 2,71)
= 100 × (7.21)
= 721
Which is the correct algebraic expression for "6 less than 3 times a number?
Answer: [tex]\huge\boxed{\ m=7 }[/tex]
Step-by-step explanation: We can break this problem down to understand it. Let the number be m. Three times the number 'm ' is 3.m or 3m. 3 ( m ) - 6 = 15. 3m -6 = 15 add 6 to both sides; 3m -6 + 6 = 15 + 6 3m = 21 dividing both the sides by 3 ,and we get; 3m /3 = 21 / 3 m=7 .
Best of Luck!
Write an exponential function in the form y=ab^x that goes through points (0,7) and
(9, 3584).
Answer:y=7(2)^x
Step-by-step explanation:
The exponential function in the form y=ab^x that goes through the given points is f(x) = 7(2)ˣ.
What are Exponential Functions?Exponential functions are functions where the independent variable, x is in the exponent.
The general form of exponential function is,
f(x) = abˣ
The function passes through (0,7) and (9, 3584).
Substituting (0, 7),
7 = a b⁰
7 = a (since b⁰ = 1)
So, a = 7
Function is f(x) = 7bˣ
Now Substituting (9, 3584),
3584 = 7 b⁹
b⁹ = 3584 / 7
b⁹ = 512
b⁹ = 2⁹
b = 2
So the function is f(x) = 7(2)ˣ
Hence the function is f(x) = 7(2)ˣ.
Learn more about Exponential Functions here :
https://brainly.com/question/15352175
#SPJ2
Solve the two-step equation and identify the steps. 94 points
2 = − 7
4
+ 1
4
x
1.
Subtract
StartFraction 7 over 4 EndFraction to both sides.
2.
by 4.
The solution is x =
.
Answer:
Step-by-step explanation:
Can you like put the equation together it looks highly confusing
The solution for the given equation is 15.
The given equation is 2 = -7/4 + 1/4 x.
The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.
Here, 2 = (-7+x)/4
2×4 = -7+x
8 = -7+x
x = 8+7
x = 15
Therefore, the solution for the given equation is 15.
To learn more about an equation visit:
https://brainly.com/question/14686792.
#SPJ2
Find c. Round to the nearest tenth.
Answer:
Step-by-step explanation:
[tex]\theta =cos^{-1}\left(\frac{90^2+55^2-50^2}{2(55)90}\right)\\ \\ \theta =cos^{-1}\left(\frac{8625}{9900}\right)\\ \\ \theta =2.9^o[/tex]
Answer:
29.4
Step-by-step explanation:
Solve the Linear system. Enter your answer as an ordered pair
2x+3y=31
y=x+7
(2,9)
this needs 20 characters
Find the product of 2x4(4x2 + 3x + 1). (1 point)
a
8x6 + 6x5 + 2x4
b
8x8 + 3x4 + 2x4
c
2x4 + 6x5 + 8x6
d
6x6 + 5x5 + 3x4
The Answer Is 72+24x
Use the distributive property to find the answer.
8(8+3x+1)=64+24x+8
Meaning,
2x4(4x2+3x+1)=72+24x
Guyssss I need your help for this question ASAPpp
[tex] \sqrt{64} [/tex]
Input into your calculator to verify
A rectangular prism has a length of 3 meters, a height of 7 meters, and a width of 7 meters. What is its volume, in cubic meters?
Answer:
147 cubic meters
Step-by-step explanation:
Volume = length x width x height
V = 3 x 7 x 7
V = 21 x 7
V = 147 cubic meters
Which equation best represents the relationship between x and y ?
Answer:
ummmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
Step-by-step explanation:
For number 6 I’m not sure how to do it
can someone help me
Answer:
6
Step-by-step explanation:
Answer:
x = 6
Step-by-step explanation:
So we know that:
5x-10 = 20
5x=20+10
5x=30
x=6
hope this helps :)
What is the equation of the line passing through (-2,-7) (4,23)
Answer:
The equation of line Passing through (2,3) and (4,7)
The slope of line is
4−2
7−3
=
2
4
=2
The equation of line is y−7=2(x−4)
y−7=2x−8
2x−y−1=0
Step-by-step explanation:
Which pair of functions are inverses of eachother?
Answer:
D
Step-by-step explanation:
A.
y= 6x³
to find the inverse substitute x for y and y for x and solve for y
x= 6y³ ; divide both sides by 6
x/6 =y³ ; cube root both sides
(∛x)/ ∛6 = y
so (∛x)/6 and 6x³ are NOT inverse of each other
B
y= (x+2)/5
x= (y+2)/5; multiply by 5
5x = y+2; subtract 2
y= 5x-2 NOT corect
C
y = 5x-6
x= 5y-6; add 6 to both sides
x+6 = 5y ; divided by 5 both sides
y = (x+6)/5 is NOT correct
D
y=7x -2
x= 7y-2
x+2 = 7y , (x+2) /7 = y so IS correct
Jack and Jill each improved their yards by planting hostas and shrubs. They bought their supplies from the same store. Jack spent $52 on 11 hostas and 5 shrubs. Jill spent $70 on 5 hostas and 10 shrubs. What is the cost of one hostas and one shrub
What is the name of the angle pair for <1 and <2?HELP
Answer:
It's A(complementary)
A is the poin 3,5 and b is the point 0,k if the distance of ab is 5 units find the possible value of k
Answer:
K is either 9 or 1
Step-by-step explanation:
Sqrt((0 - 3)² + (k - 5)²) = 5
Square both sides
(0 - 3)² + (k - 5)² = 5²
(0 - 3)² + (k - 5)² = 25
-3² + (k - 5)² = 25
9 + (k-5)(k-5) = 25
9 + k² - 5k - 5k + 25 - 25 = 0
k² - 10k +9 = 0
k² - 9k - k + 9 = 0
k(k - 9) - 1(k - 9) = 0
k - 1 = 0 ; k = 1
k - 9 = 9; k = 1
K = 9 or k = 1
K is either 9 or 1
Some values of functions f, g, h, and k are provided in the
table on the right. Find a possible equation of each function.
Verify your results with a graphing calculator table. [HINT: Use
linear or exponential equations.]
The equation of function f is f(x) =
Answer:
100(1/2)^x
Step-by-step explanation:
i took the test
At Cindy's birthday each guest will get one-third of a medium sized pizza. There will be 12 people at the party, including Cindy. How many pizza's does her mom need? awnser is 6
Answer: 4 pizzas
Step-by-step explanation:
There are to be 12 people at the party.
Each person is expected to take 1/3 of a pizza.
The total number of pizza needed is therefore:
= No. of people * quantity of pizza
= 12 * 1/3
= 4 pizzas
Note: Answer would be 6 if each guest wanted 1/2 of a pizza.
S. At Food Lion, 28 of every 35 jars of peanut butter on the shelves are creamy peanut butter. What percent of the jars of peanut butter are not creamy?
Answer:
7/35 or 20% of the jars are not creamy
Answer:
20%
Step-by-step explanation:
To find the percent of NOT creamy:
35(total peanut butter) - 28(creamy) = 7
Question now is: 7 is what % of 35?
Formula = a(part) = p(percent)*w(whole)
p = a/w
7/35 = 0.2
0.2 is a decimal so multiply by 100 to get 20%
The answer should be 20% so I hope this helps!
Please help me in this! I need to submit it fast.
Answer:
y=3.5x
Step-by-step explanation:
Since when x is 0 when y is 0, there is no y-intercept. The ratio with the other values gives the equation y=3.5x, because y is 3.5 times larger than x.
Describe how to use a number line to find the sum of 5 + 13. Then use this method to find the sum.
Answer:
Start at 13, then count 5 more to the right. You will end at 18, which is your answer.
Step-by-step explanation:
Answer:
the anser is 18
Step-by-step explanation:
you would start at the mark that indicates 13 and go up or to the right 5 more marks or to whichever mark indicates 18
hello, could someone help me with this question, thank you.
It's C.
Basically, when youre dividing something, the bases would stay the same but the exponents would change. For division, you'd have to substract the exponent of the denominator from the denominator (of like bases, of course)
In this case, it's 10^8-(-3).
The only reason it's not 10⁵ is because of the negative 3. If it were a positive 3, it would become 10⁵.
What steps must you take to divide fractions?
Answer:
Find a reciprocal.
Step-by-step explanation:
ex: If you have 5/6 divided by 3/7 you would flip the 3/7 so it's 7/3 so then you can simply multiply them. REMEMBER YOU CANNOT DIVIDE FRACTIONS. YOU MUST CHANGE THE PROBLEM INTO MULTIPLICATION FIRST!!!
which is the slope of a line that is perpendicular to the line that passes through the points (29, 24) and (3, 4)?
Answer:
26/20
Step-by-step explanation:
y2-y1 divided by x2-x1
4-24= -20
3-29= -26
-20/-26= m
perpendicular means to switch the numbers and change the sign
a perpendicular slope to -20/-26 is 26/20.
I need someone to do this Best answer gets brainleist
Answer:x^(25)y^(15)
Step-by-step explanation:use mat h wa y . c o m
it helps
heeeelp pls i beg of you
Answer: 41.6%
Step-by-step explanation:
You divide the amount of trees 40ft or taller (10) by the total number of trees (24) so 10/24 = .416 (41.6%)
Complete the input-output table that represents the linear function y=-4x+10
Answer: 6
Step-by-step explanation: the table is going down by 4 so the next number is 6
find the value of s when u = 14, a = 8 and t = 4. s=ut+1/2at^2
Answer:
s = 120
Step-by-step explanation:
Explanation:-
Given
[tex]s = ut + \frac{1}{2} at^{2}[/tex]
Substitute 'u =14 , a= 8 and t=4
[tex]s = 14 (4) + \frac{1}{2} 8(4)^{2}[/tex]
s = 56 + 64
s = 120
Based on the graph, what is the initial value of the linear relationship?
A coordinate plane is shown. A line passes through the y-axis at -2 and the x-axis at 3.
−2
0
two over three
3
Question 4(Multiple Choice Worth 4 points)
(05.05)Which scenario best matches the linear relationship expressed in the equation y = 32x + 80?
Joseph has $80 in his bank account and spends $32 each day.
Joseph has $80 in his bank account and earns $32 each day.
Joseph had $32 in his bank account and deposited another $80.
Joseph has $32 in his bank account and earns $80 each day.
Question 5(Multiple Choice Worth 4 points)
(05.05)David and Amanda are trying to figure out how long they can live off their $12,350 savings if they spend $240 each month. They have each created an equation.
David’s Equation Amanda’s Equation
y = 12,350 – (240x) y = 12,350 + (240x)
Which person has the correct equation to model this linear relationship?
Amanda’s equation is correct, because their spending will be multiplied by the number of months and then added to their savings.
Amanda’s equation is incorrect, because their spending will increase the amount of their savings.
David’s equation is correct, because their spending will be multiplied by the number of months and then subtracted from their savings.
David’s equation is incorrect, because their spending should be a fixed amount and should not be multiplied.
You must check the box below prior to submitting your exam!
Check this box to indicate you are ready to submit your exam
FDK161.10
Answer:
(A) -2
Step-by-step explanation: