Answer:
02
Step-by-step explanation:
3×2=6
HOPE IT HELPED YOU
It typically means add three to the original number in the equation
That's a lot of questions. First, they're asking for how much each person pledged. Ivan said he would give $4.25, plus $1.25 per mile. As an expression, that would be 1.25m+4.25 . Vicky said that she would give $5.75, plus $.75 per mile, which would be .75m+5.75 . The second problem asks you to add the two, so add 1.25m and .75m to get the total amount she would earn per mile, which is $2. If I got paid $2 for every mile I biked, I would bike a marathon. Then add the flat payments of $4.25 and $5.75, and you get $10. So, the final equation would be 2m+10.
The last question is asking for you to find an equivalent proportional expression. To find this, you can just dividing by the greatest common factor of the two numbers. I got 2, so the equation would be 1m+5.
Answer:
Ok, and it's 9.35423007
Step-by-step explanation:
Answer: The number is 75
Lets start by defining the 2-digit number.
--------------------------------------------------------------
Define the number
--------------------------------------------------------------
Let x be the digit in the tens place and y be the digit in the ones place.
The number is 10x + y
The reverse of the number is 10y + x
Now we will construct the equations needed
--------------------------------------------------------------
Construct equations
--------------------------------------------------------------
When the digits are reversed, the value decreases by 18:
(10x + y) - (10y + x) = 18 . ← Apply distributive property
10x + y - 10y - x = 18 ←Combine like terms
9x - 9y = 18 ←Divide by 9 through
x - y = 2
The sum of the digits is 12:
x + y = 12
Now that we have the two equations, we can solve for x and y.
--------------------------------------------------------------
Solve for x and y
--------------------------------------------------------------
x - y = 2 ---------------------- (equation 1)
x + y = 12 ---------------------- (equation 2)
--------------------------------------------------------------
Make x the subject in equation 1
--------------------------------------------------------------
x - y = 2 ← Add y from both sides
+ y +y
x = 2 + y
--------------------------------------------------------------
Substitute x = 2 + y into equation 2
--------------------------------------------------------------
x + y = 12 ← Substitute x = 2 + y
2 + y + y = 12 ← combine like terms
2 + 2y = 12 ← Subtract 2 from both sides
-2 -2
2y = 10 ← Divide by 2 on both sides
÷2 ÷2
y = 5
--------------------------------------------------------------
Substitute y = 5 into equation 1
--------------------------------------------------------------
x - y = 2 ← substitute y = 5
x - 5 = 2 ← add 5 on both sides
+5 +5
x = 7
Now we know the value of x and y. Lets find the 2-digit number.
--------------------------------------------------------------
Find the 2-digit number
--------------------------------------------------------------
The number = 10x + y = 10(7) + 5 = 75
--------------------------------------------------------------
Answer: The number is 75
--------------------------------------------------------------
