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
crimeas [40]
3 years ago
8

Travis bought $9.45 worth of 49-cent stamps and 21-cent stamps. The number of 21-cent stamps was 5 fewer than the number of 49-c

ent stamps. Solve the equation 0.49s+0.21(s−5)=9.45 for s to find the number of 49-cent stamps Travis bought.
Mathematics
1 answer:
egoroff_w [7]3 years ago
7 0

Answer:

15 49-cent stamps

Step-by-step explanation:

We can solve this problem with the equations <em>0.49(x) + 0.21(y) = 9.45 </em>and <em>x - 5 = y</em>. Well, 0.49(15) + 0.21(10) = 9.45, so we know that there are 15 49-cent stamps and 10 21-cent stamps. The question is asking for the number of 49-cent stamps, so we can tell Travis bought 15 49-cent stamps.

Hope this helps! Plz give me brainliest, it will help me achieve my next rank.

You might be interested in
40 POINTS!!!!!!!! The length of a rectangle is 7 millimeters longer than its width. The perimeter is more than 62 millimeters.
Arte-miy333 [17]

a) L = W + 7  

b) 2 ( L + W ) > 62  

c) 2 ( W + 7 + W ) > 62  

2w+14+2w>62  

4w+14>62  

4w > 48  

w > 12

8 0
3 years ago
Probability of two or more events happening
Anit [1.1K]

Answer: Independent

Step-by-step explanation: Just multiply the probability of the first event by the second.

4 0
3 years ago
The radius of a sphere is 7 cm. What is the sphere's volume? Round to the nearest tenth, and use 3.14 for π.
Leokris [45]

Answer:

1,436.8

Step-by-step explanation:

5 0
2 years ago
How many solutions does the equation −3x−17=−17−3x have?
harkovskaia [24]

Answer:

an infinite number of solutions

Step-by-step explanation:

−3x −17 = −17 −3x

left side = right side  TRUE because -3x-17 is the same as -17-3x

we can rearrange  the the equation

−3x −17 +17 = −17 +17−3x, add 17 on both sides of the equations

            -3x = -3x, divide both sides by (-3)

               x = x

Since this equation is <u>always true ( for any number ) </u>we have <u>an infinite number of solutions</u> (since there are is an infinity of numbers.)

8 0
3 years ago
Find the area of the figure
vladimir2022 [97]

Answer:

186.66

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Which expression represents the algebraic phrase “the sum of negative three-eighths and four times x minus nine times z”?
    5·1 answer
  • Find the solution of this system of equations. Separate the x- and y-values with a comma. x = 2 + y -6x – 6y = -12
    11·1 answer
  • Definitons: 1) Expand (multiply over brackets) 2) collecting like terms 3) rearranging 4) solving equations
    6·2 answers
  • If any one can answer this I will give 100 points.( what is 2+2 )
    6·2 answers
  • I need help writing this proof!!
    8·1 answer
  • I need the answer for the circled one plzz help me
    11·1 answer
  • Lee has saved 65% of the money she needs to buy a pair of jeans that cost $52. How much money does lee have, and how much more m
    5·1 answer
  • Please help due in 5 minutes
    7·1 answer
  • David earns $7.75 per hour working at a local fast food restaurant. Last week David worked 19.2 hours. How much money did David
    11·1 answer
  • In how many ways can a committee of four men and four woman be formed from a group of seven men and eleven women?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!