1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
LuckyWell [14K]
2 years ago
5

Sam paid $8.28 for 18 stamps. At this rate, how much would it cost Sam to buy 12 stamps?

Mathematics
2 answers:
liraira [26]2 years ago
5 0

8.28÷18 = 0.46

0.46 is the cost if 1 stamp

cost of 12 stamps= 0.46×12 = $5.52

happy to help :)

11Alexandr11 [23.1K]2 years ago
4 0

Answer: $5.52

Step-by-step explanation:

Given: Sam paid $8.28 for 18 stamps.

Thus, the cost of 18 stamps = $8.28

Then the cost of 1 stamp=

Thus, the cost of 1 stamp=$0.46

With the same rate , the cost of 12 stamps=

Therefore, the cost of 12 stamps= $5.52

hence, it costs $5.52 to Sam to buy 12 stamps.

You might be interested in
A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boa
ser-zykov [4K]

Answer:

t=4h

Steps below

Step-by-step explanation:

We know:

speed of boat with respect to earth:  13  km

speed of stream with respect to earth:  4 km

13 km/h + 4 km/h = 17 km/h The time to travel 68 km with this speed is thus t = 68 km 17 km h = 4 h

<em><u>Hope this helps.</u></em>

4 0
3 years ago
What is the rate of change?
Yuri [45]

Answer:

the slope of the line is the rate of change

Step-by-step explanation:

7 0
2 years ago
Twelve less than a third of a number is -10
jolli1 [7]
I believe that number would be 6.
1/3n-12= -10
+12 +12
_________
1/3n = +2
x3 x3
_________
n = 6
7 0
3 years ago
Read 2 more answers
List the measurement below from smallest to largest .7 cm 18 mm 1 m 3 dm
Ivanshal [37]
In order to list the measurements from smallest to largest, we convert all the measurement to a common unit. In this item, we convert the given to meters, m.

A. The conversion factor to be used here is 1 m = 100 cm
      (7 cm)(1 m / 100 cm) = 0.07 m

B. Conversion factor: 1 m = 1000 mm
     (18 mm) (1 m / 1000 mm) = 0.018 m

C. Let us list this as is, 1 m

D. The conversion factor here is 1 m = 10 dm
    (3 dm)(1 m / 10 dm) = 0.3 m

By the converted values, we are then able to arrange the given measurements.Hence, the arrangement should be 18 mm, 7 cm, 3 dm, and 1 m.
4 0
3 years ago
Determine whether the lines are parallel or perpendicular or neither. 2x=y−10 and y=−2x
MrRa [10]

Put the first equation in slope-intercept form, or y = mx + b. Start by subtracting y from both sides.

2x - y = -10, subtract 2x from both sides.

-y = -10 - 2x

Divide both sides by negative one.

y = 10 + 2x

To find the slope when the equations are in slope-intercept form you look at the coefficient of x. The first equation has the slope of 2 (which we just found), and the second equation has the slope of -2.

Parallel lines have the same slope and perpendicular lines have opposite reciprocal slopes. Since 2 and -2 are neither of these, your answer is neither.

7 0
3 years ago
Other questions:
  • Complete the solution of the equation. find the value of y when x equals 4 -3x +9y = -57
    11·1 answer
  • Which term best describes the tip of a needle
    7·1 answer
  • Question 6 (5 points)
    6·1 answer
  • What is 7 2/5 x 6 1/4
    8·2 answers
  • Gary is reaching into a bag that contains a red ball a blue ball and a white ball. at the same time eric is tossing a coin into
    7·1 answer
  • I only need the first one ( 45% of 30) but please keep in mind that I do need help with the other two, but they are optional.
    11·2 answers
  • Last year my parents had a combined income of 70,000. They paid 17,000 in federal income taxes. What fraction shows how much my
    5·2 answers
  • I have a bag containing red, green, blue, and white marbles and the ratio $\text{red}:\text{green}:\text{blue}:\text{white}$ is
    12·1 answer
  • Plz help. Which problem is a linear equation?
    14·1 answer
  • How to find the intersection of -3x+y=9 and 4x-7y=5
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!