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
Alina [70]
3 years ago
15

How many solutions does this equation have? (15x + 21) / 3 = 5x + 7

Mathematics
1 answer:
Lesechka [4]3 years ago
7 0

Answer:

3*(5*x-7)-(15*x-21)=0

Step-by-step explanation:

3 • (5x - 7) -  (15x - 21)  = 0

Step  2  :

Equation at the end of step  2  :

 0  = 0

Step  3  :

Equations which are always true :

You might be interested in
Pat is painting a stage backdrop for a play. The paint he is using covers 90 square feet per quart. How many quarts of paint sho
Scorpion4ik [409]
A) If you cut off half the peaks (3.5 ft down from the top), they will just fill the valleys making a rectangle 18.5 ft by 30 ft. The area is the product of these dimensions.
  A = (18.5 ft)*(30 ft) = 555 ft²

b) To determine the number of quarts of paint required, divide this number by 90 ft². Since you cannot buy a partial quart, if there is any remainder, use the next higher integer number of quarts.
  555/90 ≈ 6.2 so Pat should buy 7 quarts of paint.
4 0
2 years ago
John has a rectangular-shaped field whose length is 62.5 yards and width is 45.3 yards. The area of the field is ________ square
xxMikexx [17]

2831.25 is the area and 215.6 is the perimeter

3 0
3 years ago
Pls help thank you so much
Rudik [331]

Answer:

C

Step-by-step explanation:

You can start by "filling up" all of the bigger boxes. 75*14=1050 cupcakes, which when subtracted from the total initial amount leaves 400 cupcakes for the smaller boxes. The smallest multiple of 13 smaller than 400 is 390, which is 10 smaller than 400. Therefore, there will be 10 cupcakes left over, or answer choice C. Hope this helps!

8 0
3 years ago
Read 2 more answers
Easy!<br> Calculate the area of the shape below
skad [1K]

Answer i just have to get points but good luck

Step-by-step explanation:

46

3 0
3 years ago
Read 2 more answers
4. Evaluate the expression for the given value of each variable.
Novosadov [1.4K]

Answer:

-18

Step-by-step explanation:

5a2-7-b3

5*a*2-7-b*3

5\cdot \left(-2\right)\cdot \left(2\right)-7-\left(-3\right)\cdot 3

Therefore, -18 is your answer.

Hope this helped! :)

5 0
3 years ago
Other questions:
  • Write a recursive formula for the sequence below. Use the variable "n" for your formula in your answer.
    7·2 answers
  • The dot plots show the forearm lengths of 2 groups of 10 students. What statements could be true
    8·1 answer
  • Find the product of (2x-3) and (x+3)​
    13·1 answer
  • Subtract -28-47-12 please help!
    8·2 answers
  • Jacob is driving home he drove 10 miles and his house is 156 miles away from him how longer does Jacob need to travel
    6·2 answers
  • -3 - 8+ (-4) what is the answer??
    9·2 answers
  • Help with geometry homework
    5·1 answer
  • The base and exponent of (3.5)^5<br><br>with explain ​
    7·1 answer
  • Solve for the given variable
    13·1 answer
  • Solve each system using substitution or additions<br> (elimination).<br><br> -x+2y=-1<br> 5x-10y=6
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!