Given :
A 7-inch candle burns at a rate of 2 inches an hour.
To Find :
An equation represents the relationship between y, the height of the candle in inches, and x, the number of hours the candle burns.
Solution :
We know, linear equation is given by :
[tex]y = mx + c[/tex]
At x = 0 -> y = 7
So,
7 = m(0) + c
c = 7 .....1 )
At x = 1 -> y = 5
So,
5 = m(1) + c
c + m = 5 .....2 )
Solving equation 1 and 2 , we get :
m = -2 and c = 7
Therefore, equation is given by y = -2x + 7 .
Hence, this is the required solution.
Answer:7–2x
Step-by-step explanation: you are subtracting 7 from 2 hours /x
What is 133413.12cm in metres
Answer:
1334.1312
Step-by-step explanation:
Answer:
1334.1312
Step-by-step explanation:
Sarah says that -6 multiplied by -3 is -18. Joseph says -6 multiplied by -3 is 18. Who is correct? Explain.
Answer:
Joseph
Step-by-step explanation:
negative times a negative equals a positive.
LaShea would like to invest her $100 in birthday money. Which option will give her the most money at the end of the investment period?
1 year at 8 percent
1.5 years at 7 percent
2 years at 6.5 percent
3 years at 4 percent
Answer:
3 years of 4 percent
Step-by-step explanation:
Answer:
3 years 4 percent
Step-by-step explanation:
1. Write three different ratios that would form a proportion with the ratio of
5/3
Answer:
5.7
Step-by-step explanation:
The three ratios that would form a proportion with the ratio of 5/3 are,
10/6, 15/9, and 20/12.
What are ratio and proportion?A ratio is a comparison between two similar quantities in simplest form.
Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
The three ratios that would form a proportion with the ratio of 5/3 are,
(5×2)/(3×2), (5×3)/(3×3) and (5×4)/(3×4).
10/6, 15/9, and 20/12.
learn more about proportion here :
https://brainly.com/question/7096655
#SPJ2
please help a girl out:(( im not good at math:/
Answer: [tex]\frac{15}{36}[/tex] , [tex]\frac{8}{36}[/tex]
LCD is 36
Step-by-step explanation:
[tex]\frac{5}{12} * \frac{3}{3} = \frac{15}{36}[/tex]
[tex]\frac{2}{9} * \frac{4}{4} = \frac{8}{36}[/tex]
A jar contains only pennies, nickels, dimes, and quarters. There are 19 pennies, 29 dimes, and 16 quarters. The rest of the coins are nickels. There are 88 coins in all. How many of the coins are not nickels? If n represents the number of nickels in the jar, what equation could you use to find n?
Answer:
24 nickles
Step-by-step explanation:
N= 88-(19+29+16)
N= 24
The length of a rectangle is
four times its width. If the
area is 100 meters squared,
what is the length of the
rectangle?
Answer:
5 is the width 20 is the length
Step-by-step explanation:
5*4= 20 and 20*5=100
y=6x-3 in standard form
Answer:
It would be 6x - y = 3.
25 POINTS Which table of values represents a quadratic function?
You borrowed $25 from your mom to buy clothes. A week later you repaid her $14. Which expression shows how much money you owe?
A)25-14=11
B)-25+14=-11
Answer:
a
Step-by-step explanation:
you can owe her -11, first of all
she gave you 25, you gave her back 14
25-14 to figure out what yo ustill owe
Answer:
answer is b
Step-by-step explanation:
it is a negative number you owe her that much
PLEASE HURRY!
Choose all the points that are located on quadrant lV.
Choices:
(-3,-1/4). (6,-9). (-5,3). (2,-4). (-11,5). (7,1/4)
Sorry about the picture it’s not very clear:/
Algebra help pleeease!
Answer:
Step-by-step explanation:
can you add ur question so I can help
A gardener planted flowers of different colors.
3/10 of the flowers are yellow.
3/4 of the remaining flowers are green.
The rest are purple.
The gardener planted 119 purple flowers, how many flowers did the gardener plant?
Answer:
The gardener planted 680 flowers
Step-by-step explanation:
The different colors of flowers planted by the gardener are;
The proportion of the flowers planted that are yellow = 3/10
The proportion of the remaining flowers planted that are green = 3/4
The color of the rest of the flower planted = Purple
The number of purple flowers planted = 119 purple flowers
Let the number of flowers the gardener planted = x
Therefore, the number of yellow flowers planted = 3/10 × x
The number of green flowers planted = 3/4 × (x - 3/10 × x) = 21/40×x
The number of the rest of the flower which are purple = x - (3/10 × x+ 21/40×x) = x - 33/40×x = 7/40×x
∴ The number of the purple flowers planted = 7/40×x = 119
x = 119 × 40/7 = 680
The number of flowers the gardener planted = x = 680 flowers
The gardener planted 680 flowers.
Convert the equations (x+3)(x+1) and (x+2)^2-1 into standard form
the first one is x^2 + 4x + 3
the second one is x^2 + 4x + 3
Step-by-step explanation:
Please help me ASAP I will mark you brainliest!!
Answer:
i think it is b
Step-by-step explanation:
HELP PLZZZZZZZ THANK YOU
11*7 is 77
n=77/7
n=11
Answer:
Kristen would have 11 magazines
Step-by-step explanation:
You would divide 77 by 7 which gives you 11 so therefore:
n = 77 ÷ 7
n = 11
If 2 pretzel makers can make 444 pretzels in 6 hours, how long does it take 5 pretzel makers to make 88 pretzels? Plz help me What is the answer to this equation?
Answer: Tt will take approximately 19.03 minutes.
Step-by-step explanation:
Formula required: [tex]\dfrac{M_1T_1}{W_1}=\dfrac{M_2T_2}{W_2}[/tex], where [tex]M_1[/tex] = number of men, [tex]T_1[/tex] = time taken,[tex]W_1[/tex] = work in situation 1, and [tex]M_2[/tex] = number of men, [tex]T_2[/tex] = time taken, [tex]W_2[/tex] = work in situation 2.
Given: If 2 pretzel makers can make 444 pretzels in 6 hours.
i.e. [tex]M_1=2,\ W_1=444, T_1=6\ hours[/tex]
To find : [tex]T_2[/tex] for [tex]M_25, W_2=88[/tex]
Substitute all value sin formula , we get
[tex]\dfrac{2\times6}{444}=\dfrac{5\times T_2}{88}\\\\\Rightarrow T_2=\dfrac{8\times88}{444\times5}=0.3171\ hour[/tex]
[tex]=0.3171\times 60= 19.026\text{ minutes}\ \ \ \ [\text{1 hour = 60minutes}][/tex]
hence, it will take approximately 19.03 minutes.
Give the person above me credit
बाल कृष्ण माता यशोदा पर कौन सा दोष लगते हैं I सूरदास के पद
से?
Answer:
true
Step-by-step explanation:
how do i do this, pls help me asap, thank you.
Answer:
I honestly don't know
Step-by-step explanation:
Honestly
In a class 21 of students, 7 have a brother and 6 have a sister. There are 4 students who have a brother and a sister. What is the probability that a student who has a brother also has a sister?
x - a = b; for x ..............
Answer:
x = b + a
Step-by-step explanation:
[tex]x - a = b\\\\x - a + a= b+a\\\\\boxed {x=b+a}[/tex]
Hope this helps.
The "Pick 3" at horse racetracks requires that a person select the winning horse for three consecutive races. If the first race has eleven entries, the second race nine entries, and the third race seven entries, how many different possible tickets might be purchased?
Answer:
693
Step-by-step explanation:
To find the number of possible tickets that would be purchased we simply multiply the total number of choices that each race provides together. This would tell us how many combinations exist which in term is the same as the different possible tickets that can be purchased. Since the choices for the first race are 11, the second race 9, and the third race 7, we multiply these numbers together...
11 * 9 * 7 = 693 possible tickets
I think y’all know what to do. Constant rate of change.
Answer:
-2 gal/min
Step-by-step explanation:
Which of the following are solutions to the inequality below? Select all that apply.
3j > 26
Answer:
j=11 and j=9
Step-by-step explanation:
3(4) > 26
12 > 26, which is false
3(11) > 26
33 > 26, which is true
3(9) >26
27 > 26, which is true
3(7) > 26
21 > 26, which is false
Estimate the factors 2,047 x 508 and solve
Answer:
1039876,Estimate would be about 1040000
Step-by-step explanation:
Will give brainliest
Answer:
2x -2y
Step-by-step explanation:
May i get brainiest
16. What is the median age of a class where 14 students are 14 years
old and 16 students are 15 years old?
Answer:
22.5. the last two is 14 and 15 so you add the two remaining numbers and divide by 2
What is the value of the expression (-2)^3 (3)^0 (4)^-2
Answer:
(-1)/2
Step-by-step explanation:
Simplify the following:
(-2)^3×3^0/4^2
4^2 = 16:
((-2)^3×3^0)/16
3^0 = 1:
(-2)^3/16
(-2)^3 = (-1)^3×2^3 = -2^3:
(-2^3)/16
2^3 = 2×2^2:
(-2×2^2)/16
2^2 = 4:
(-2×4)/16
2×4 = 8:
(-8)/16
The gcd of -8 and 16 is 8, so (-8)/16 = (8 (-1))/(8×2) = 8/8×(-1)/2 = (-1)/2:
Answer: (-1)/2
Please help fast thank you. The problem is in the picture.
Answer:
C
Step-by-step explanation:
eighth grade math!! please help asap!!
Answer:
I believe its 4
Step-by-step explanation:
