Answer:
The two integers have values 28 and 21
Step-by-step explanation:
This is a simultaneous equation problem. Let the two integers be represented by 
and 
.
The first part of the question can be represented by the following equation:
From the second part of the question, we know their sum is 49, which can be represented by:
Now, we need to manipulate the expressions to contain just one unknown value. If we add to both sides of the first equation we get:
Now we can substitute the value of for 
in the second equation:
Which we can then rearrange and solve for :
We can now use the value for in either of the two original equations for find the value of :
.
We now have the the two values 28 and 21.
Note: To double check the answer, check if their sum is equal to 49:
.
First figure how much time 1/5 of a minute is by dividing 60 seconds by 5 - the answer is 12 seconds. If Stella writes only a seventh of her paper in 12 seconds, then a whole paper would be seven times that - which equals 84 seconds.
Answer:
120 kids prefer video games
Step-by-step explanation:
60% is .60
multiply .60 by 200 to get your answer.
.60 × 200 = 120
Answer:
Step-by-step explanation:
order of operations can be abbreviated as GEMDAS 1. <u>G</u>roups 2. <u>E</u>xponents 3. <u>M</u>ultiplication and <u>D</u>ivision 4. <u>A</u>ddition and <u>S</u>ubtraction
So start by writing out the equation
Slove anything grouped with parenthesis or other grouping symbols
There are no exponents so skip to Multiplying and Dividing
Then Addition and Subtraction
(also I already know that most people write it as PEMDAS as in parenthesis instead of groupings but I personally prefer to abbreviate it as GEMDAS and that is an opinion for a reason)
