Answer:
78
Step-by-step explanation:
% profit= profit/CP ×100/1
Profit= selling price (S.P) - cost price(C.P)
%profit= 30
profit= 18
% profit= profit / CP×100/1
30= 18/CP ×100/1
30 = 1800 /CP
CP= 1800/30
CP =60
Recall that:
Profit= SP- CP
SP= Profit +CP
= 18+60
=78
An object is launched at 20 m/s from a height of 65 m. The equation for the height (h) in terms of time (t) is given by h(t) = -4.912 + 20t + 65. What is the
object's maximum height?
Answer:
The maximum height is the y-value of the vertex.
h(t) = -4.9t² + 20t + 65
a=-4.9 b=20 c=65
h(2) = -4.9(2)² + 20(2) + 65
= -19.6 + 40 + 65
= 85.4
Step-by-step explanation:
Sophia has a lemon drink made by mixing 70ml of concentrate with 180ml of water. Tommy has a lemon drink made by mixing 90ml of concentrate with 270ml of water. Who has the strongest drink, sophia or Tommy. Show your working.
Answer: Tommy has More
Step-by-step explanation: just add and you hey who has the highest song trust me if not
15% of $9 is $_________________.
Answer: $1.35
Step-by-step explanation:
You play a where you draw one card from a standard deck of playing cards. If you pick a diamond, you win $10. If you pick a face card, which is not a diamond, you win $6. If you pick any other card, you lose $5. How much money do you expect to win?
Answer:
expected value = (13/52)(10) + (9/52)(8) + (30/52)(-6) = $.42
expected value is you win $.42, so you want to play
Step-by-step explanation:
Zarika earns the same amount each week by walking her neighbor's dogs. When she started this job, she had $300 in her savings account.
The table shows Zarika's savings account balance for her first month of work.
Week 0 1 2 3 4
Balance $300 $550 $800 $1050 $1300
Let x represent the number of weeks Zarika has been working and let y represent Zarika's account balance.
Which equation, expressed in Slope-Intercept Form, represents the amount of money in Zarika's bank account over time?
y=250x+300
y=300x+250
y=300x−250
y=250x−300
Answer
y=250x+300
Step-by-step explanation:
This is the last one day tyigyyydgpitxgif
Name
Class:
Find the place value of a digit in a whole numbe
1.
What is the value of 5 in 857,963 ?
5 is in the
place.
5 has a value of
What is the Value of 5 in 857,963
A.10,000
B.1,000
C.100
Answer: A
Step-by-step explanation: replace each number with a 0 and replace the 5 with a 1
the markup rate is the constant of proportionality in the equation y =kx. Write an equation that can be used to find the amount of markup on the cost x of a phone
Answer:
8.98
Step-by-step explanation:
8=7
Answer:
i think its 1
Step-by-step explanation:
Which of the following is the complete factorization of 18n +60 ?
a.78n
b.2(9n +30)
C.3(6n + 20)
d.6(3η + 10)
e.18(n + 3)
Answer:
answer is d
Step-by-step explanation:
18n can be factored in 60
6 times which would remand 3n+10
Leanna has a rectangular piece of fabric. The fabric is 24 inches wide and 40 inches long. Leanna folds the piece of fabric along its diagonal to form a triangular scarf.
What is the area, in square inches, of the triangular scarf?
Answer:
480 square inches
Step-by-step explanation:
width = base = 24 inches
length = height = 40 inches
area of the triangular scarf = 1/2 * base * height
= 1/2 * 24 * 40
= 480 square inches
-1.9d + 7 + 4.8d + -1.1d - 1.7d
find the measures of one interior angle and one exterior angle of a regular polygon with 8 sides
one interior angle__________ one exterior angle___________
Answer:
one interior angle 135
one exterior angle 45
Step-by-step explanation:
Total measure of all angles in a 8 sided regular polygon = (n - 2)* 180
= ( 8 - 2 ) * 180
= 6 * 180
= 1080
Measurement of one interior angle = 1080 / 8 = 135
Interior angle and exterior angle make linear pair.
Measurement of one exterior angle = 180 - 135 = 45
The math club had to pay a $12 set up fee for club T-shirts plus $5 per shirt.
Formulate an equation. Let s represent the number of t-shirts and C the cost.
A mathematical sentence with an equal sign is called an EQUATION. It is a relationship showing that two expressions have the same value.
16 ounces = 1 pound,3(x-5)=16, and 3(2) + 7 = 16-3
Please help me !!!!!!!
Answer:
x = -3, -2, or 2
Step-by-step explanation:
In the graph, we can look along the line f(x)=6 and see where the function intersects, noting the x-coordinate of each value. We see that the coordinates with a y-value of 6 are (-3, 6), (-2, 6), and (2,6). This means that x can equal either -3, -2, or 2 when f(x)=6.
f(x) = (x-1)^2 and g(x)= x+1, what is one intersection of the functions
Answer:
Suppose f(x) and g(x) are two functions that take a real number input, and output a real number. Then the intersection points of f(x) and g(x) are those numbers x for which f(x)=g(x) . Sometimes the ... Example 1: ... x+6=−x2x+6=02x=−6x=−3.
Maria played a game with her little sister for 25 hour and read her little sister a book for 58 hour.
What is the best estimate for the total time Maria spent with her little sister?
Drag and drop an answer into each box to correctly complete the sentences.
25 hour is closest to . 58 hour is closest to . Therefore, the best estimate for the total time Maria was with her sister is close to .
Answer:
90
58 is closer to 60 and 25 is closer to 30. So when you add them you get 90.
3-5(2x - 3) = 3(4x - 2) + 2
Answer:
x=1
Step-by-step explanation:
Can you please do number 9???!! I’m giving out the brainly thingy
Answer:
16
Step-by-step explanation:
not sure i just multiplied and did the math thingy work
Answer:
63
Step-by-step explanation:
[tex](x^{3}-1)(4x+1) = (2^{3} -1)(4*2+1) = (7)(9) = 63[/tex]
8 POINTS WILL BE GIVEN!!
Answer:
x=39 degrees
Step-by-step explanation:
T'he dwarf sea horse swims at a rate of 53 feet per hour. Convert this speed to inches per minute.
Answer:
10.6
Step-by-step explanation:
divide the speed value by 5
1/2 divided by 17/10
Answer:
0.71428571428
Step-by-step explanation:
i did the problem and this is what i got
I need help asap. Please help.
Answer:
kjhjbhjn h
Step-by-step explanation:
How would I solve this question
What is the unit cost per bottle if a pack of 4 bottles of juice sells for $3
Answer:
1 1/3
Step-by-step explanation:
it's division 4 divided by 3 attest I think so
2. el doble de un número aumentado en 7
¡Hola! Creo que tu respuesta es 2x + 7. ¡Espero que esto te ayude! Buena suerte y que tengas un gran día. ❤️✨
Answer:
2x+7 creo
Step-by-step explanation:
Fred started a new e-commerce business and borrowed 15000 for 12 years to get the business up and running. The interest is 18000. Find the rate
Answer:
The rate is 6.94 %
Step-by-step explanation:
Given;
Amount borrowed by Fred to start up the e-commerce, P = 15000
time of investment, t = 12 years
interest, I = 18000
The rate is given by the following equation;
P = IRt
R = P / It
where;
R is the rate
P is the principal
I is the interest
t is the time
R = (15000) / (18000 x 12)
R = 0.0694
R = 6.94 %
Therefore, the rate is 6.94 %
(a)
Find the determinant D of the 3 X 3
D=|2 1 -1 |
|-1 2 -3|
|1 0 2 |
(b)
Use the determinant in D to find the values of x, y and z if Dx = 18, Dy = 27 and D2 = -36.
9414 1404 393
Answer:
D = 9(x, y, z) = (2, 3, -4)Step-by-step explanation:
A suitable calculator can compute the determinant for you. It is ...
D = 9
Then the values of x, y, z are ...
(x, y, z) = (Dx, Dy, Dz)/D = (18/8, 27/9, -36/9)
(x, y, z) = (2, 3, -4)
The perimeter of a rectangle is 85 ft. The length of the rectangle is two (x plus 16) and the width is 3x - 1. What is the length of the rectangle?
Answer:
The length of the rectangle is 27 ft.
Step-by-step explanation:
To determine the length of the rectangle, we will first determine the value of x.
From the question,
The length of the rectangle is 2x + 16
The width is 3x - 1
and the perimeter is 85 ft
From the formula for perimeter of a rectangle which is given by
P = 2(l+w)
Where P is the perimeter
l is the length
and w is the width
Then, we can then write that
85 = 2(2x+16 + 3x - 1)
85 = 2(5x + 15)
85 = 10x + 30
10x = 85 - 30
10x = 55
x = 55/10
x = 5.5 ft
Since the length of the rectangle is 2x+16, substitute the value of x
Therefore
l = 2x + 16
l = 2(5.5) + 16
l = 11 + 16
l = 27 ft
Hence, the length of the rectangle is 27 ft.
What is -2/5×-1 1/4
Answer:
1/2
Step-by-step explanation:
Suppose the polynomial function f has a zero at x = -3. Which of the following statements must be true?
a) (3,0) is an x-intercept of the graph of f.
b) (0,3) is a y-intercept of the graph of f.
c) x - 3 is a factor of f(x).
d) f(-3) = 0
Answer:
d) f(-3)=0
Step-by-step explanation:
Given that f is equal to zero at x=-3
So, f(-3)=0
Add.
7/10+2/5+3/4
7/10
12/19
1/15
1 17/20
Answer:
37 /20
Step-by-step explanation:
Simplify Your equation
7 /10 + 2/ 5 + 3/ 4 =
37 /20
(Decimal: 1.85)
Answer:the last one
Step-by-step explanation:
