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
tankabanditka [31]
3 years ago
5

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

Mathematics
1 answer:
MakcuM [25]3 years ago
3 0

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 :)

You might be interested in
Determine if they following is systems of equations?<br> y = 3x + 2<br> y = 7x -10
sergij07 [2.7K]

Answer:

Yes it is.

Step-by-step explanation:

7 0
3 years ago
in three plays of a football game, there is a gain of 4 yards, a loss of 9 yards, and a gain of 15 yards. What number can you us
Aloiza [94]

We can use minus(-) sign i.e. -9 to represent loss of 9 yards.

<h3>Write the difference between gain and loss.</h3>

The word “gain” implies “acquiring something”.

Gain means to acquire something one desires especially because of one’s efforts.

Gain means to get something additional, for example, to gain more speed, to gain more weight.

We can denote gain by using plus(+) sign before the given number.

“Loss” generally means “to lose something one already has.”

Loss means the deprivation from keeping something, for example, bearing the loss of a theft.

It refers to something which is lost, for example, the theft of jewelry was a great loss.

We can denote loss by using minus(-) sign before the number.

In the given question it is said that there is gain of 4 yards, loss of 9 yards and gain of 15 yards.

It is asked that how would we represent 9 yards loss.

We know that we use minus(-) sign to represent loss.

So we can represent loss of 9 yards by writing it as -9.

To learn more about gain and loss,

brainly.com/question/18281564

#SPJ9

5 0
1 year ago
When the factors of a trinomial are (x+ p) and (x + q) then the coefficient of the x-term in the trinomial is:
Eva8 [605]
The coefficient of x in this case is 1. (x*x = x^2)
4 0
3 years ago
Read 2 more answers
Evaluate the expression (-3) 3
denis-greek [22]

Answer:

-9

Step-by-step explanation:

This is just -3 * 3

=-9

6 0
1 year ago
Read 2 more answers
What percent is equivalent to 12/30 ?<br><br> 12%<br> 30%<br> 40%<br> 60%
laila [671]
12/30 is = 0.4 x 100 = 40% can I have brainliest if its right?
4 0
3 years ago
Read 2 more answers
Other questions:
  • How do you subtract a whole number 3 from 1/3
    14·1 answer
  • Solve: 3x-3y=3<br> y=-5x-17
    9·1 answer
  • if three bakers can  prepare 15 cakes in 60 minutes, how long will it take six bakers working at the same rate to prepare 20 cak
    15·1 answer
  • What’s the answer? The question is the pic below PLEASE HELP
    10·2 answers
  • PLZ HELP ME!!! NO LINKS PLZ!!!!!!
    15·1 answer
  • Last summer, an ice cream shop sold a small ice cream for $1.25 and a large ice cream for $3.75. The ice cream shop decided to r
    15·2 answers
  • Simplify fully125y2/10xy​
    11·1 answer
  • The amount of time that a customer waits on hold at a call center can be modeled by a uniform distribution on the interval from
    13·1 answer
  • Wawra has a collection of 9 books. He compared his collection with shemal and found that shemal has 3 books fewer than he does.
    5·2 answers
  • I Really need help! I don’t understand this! Will give 100 points!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!