luke1221 luke1221
  • 15-04-2021
  • Mathematics
contestada

7a = 28 Is a=21 a solution?
yes or no

Respuesta :

viktoriahthayer
viktoriahthayer viktoriahthayer
  • 15-04-2021

Answer: not a solution

Step-by-step explanation: 7a = 7 * 21 which does not equal 28, it equals 147, 7 * 4= 28, so actually a=4

Hope this helps :)

Answer Link

Otras preguntas

What is 9 ten thousands ÷10
Which is bigger? 5/6 or 5/8
what is 5,370,288 to the nearest 100,000
1015 divided by 21 whats the answer
Write an expression with an exponent that has a value between 0 and 1.
round 387,422 to the nearest hundred thousand
The height of a parallelogram is 5 feet more than it's base. If the area of the parallelogram is 204 square feet, what is its base and height?
write three ratios that are equivalent to the one given: The ratio of right-handed students to left-handed students is 18;4.
Megan and Julie are stuck simplifying radical expressions. Megan has to simplify the quantity of x to the one third power, over x to the one twelfth power. Juli
Which of the following values "completes the square," or creates a perfect square trinomial, for x2 − 8x + ___? 8 16 –8 –16