The graph shows the cost of one pound of apples at the grocery store. find the slope of the line.
Answers
Final answer:
The slope of the line represents the rate of change in cost for one pound of apples at the grocery store.
Explanation:
The slope of a line on a graph represents the rate of change. In this case, the slope represents the change in cost for one pound of apples at the grocery store. To find the slope, you can choose two points on the line and calculate the difference in cost divided by the difference in quantity of apples. The slope is the same regardless of the points you choose, and it is equal to the difference in cost divided by the difference in quantity.
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Beth does not charge a registration fee for her dog-walking service, but she charges $5 per mile that each dog is walked. Tonya's dog-walking service charges a registration fee of $20, plus $3 per mile that each dog is walked. Write and solve an equation to find the number of miles m for which Tonya and Beth would charge the same amount.
Once Isabel rented the warehouse space, she decided to post ads on several social media sites to advertise her online bookstore. Let m represent the number of months the ads have been posted. Isabel finds that the function below describes the number of books sold as a function of the number of months her ads have been posted. f(x) = 1000(∛x) + 1000 How many books were sold after 8 months? (3 points) Graph the function. (10 points)
A metal washer is made by cutting out a circle 13.2 mm in diameter from a larger circle. To the nearest tenth, what is the area of the washer
Answers
Answer:
2
Step-by-step explanation:
Answers
-4x -4x
3=5x-4
+4 +4
5x=7
x= 7/5
B. 7/3
C. 10
D. 21
Answers
Answer:
D. 21
Step-by-step explanation:
The equation tells you xy = k. Substituting the given values, you get ...
7·3 = k
21 = k
Answer:
D) 21
Step-by-step explanation:
The given inverse variation equation is x.y = k, where k is the constant of proportionality.
Given: x = 7 and y = 3.
We need to find the constant variation, k.
To find the constant variation, k, plug in x = 7 and y = 3 in the given equation and simplify.
k = 7*3
k = 21.
Therefore, the constant of variation k = 21.
Answer is D) 21.
passes through the point (3, 2).
Answers
Answer:
Y= 3x-7
Step-by-step explanation:
Since the line is parallel , the slope is same i.e. 3 .
now the equation should be y= Mx + b where m is the slope and c is the y-intercept
plugging the value of m=3 and ( 3,2) into the equation
2= 3(3) + c
2= 9+ c
c= -7
hence the equation of the line is y=3x-7
Answers
3 = c/5 + 2
3 = c/7
21/7 = c/7
21 = c
3 - 2 = c/5
1 = c/5....multiply both sides by 5, causing the 5 on the right to cancel
5 = c
Answers
V=LWH
basically
volume=height times base area
so
2. V=3 times 8 times 12=288 cm^3
3. triangular prism is 1/2 of the volume of a similar rectangular prism with same measure so
V=1/2 times 4 times 10 times 15=300 cm^3
4. trapezoid base area=area of a trapezoid=(base1+base2)/2 times height so
baseaea=(4+10)/2 times 6=7 times 6=42, then basearea times height=42 times 10=420cm^3
5. cylinder area=base area times height
base=circle=pir^2
r=1/2diameter
6/2=3
base=pi3^2=9pi
area=9pi times 12=108pi cm^3
6. 24pi=4 times pir^2
divide by 4
6pi=pir^2
divd e pi
6=r^2
√6 cm=r
7. square pyramid volume=1/3 volume of similar rectangular prism so
square means base=4 times 4=16
height=9
rectangular volume=16 times 9
pyramid voluume=1/3 times 16 times 9=48 cm^3
8. solve for base side
use pythagorean theorem
slant height=hyposonuse=13
base edge=2 times of 1 of the legs so 10/2=5
so
5^2+x^2=13^2
25+x^2=169
x^2=144
x=12
height of pyramid=12
volume=1/3 times 10 times 10 times 12 times=400 cm^3
2. C
3. B
4. A
5. C
6. B
7. C
8. A