A two-digit number is twice the sum of its digit. If the tens digit is 7 less than the unit digit, find the number.
Let x= the unit digit
Then y= the tens digit
<span>And 10y+x= the number
</span>x+y= the sum of the digits
<span>Now we are told that 10y+x=2(x+y) ------1st equation </span>
<span>We are also told that y=x-7 ----------- 2nd Equation </span>
<span>So our equations to solve are: </span>
(1) 10y+x=2(x+y)
<span>(2) y=x-7
</span>
Hope it helps
Answer:
The image below shows the equation x - 2y = 6 being graphed.
Hope this helps! :)
Answer:
1. y<-2 2. x≤5 3. 0<23 4. 0 ≤ -1 5. inequality: 3 + (7x) < 24 answer: x<3
Step-by-step explanation:
Answer:
Yes they are
Step-by-step explanation:
Conguent shapes are still conguent even if rotated and flipped. As long as their angles and length of sides are the same, they are congruent
Sequence = 40, 45, 48, 51, 59, 62, 69, 74
Median = 51+59 / 2 = 55
First quartile = 40, 45, 48, 51
So, it would be: 45 + 48 / 2 = 46.5
In short, Your Answer would be Option C
Hope this helps!
