Answer:
Equation: 5c + 7 = 2
Solution: The number is -1.
Step-by-step explanation:
The unknown number is c.
"the product of a number and 5" is 5c
"Seven more than the product of a number and 5" is 5c + 7
"Seven more than the product of a number and 5 equals 2" is 5c + 7 = 2
The equation is
5c + 7 = 2
To solve, we first subtract 5 from both sides.
5c + 7 - 7 = 2 - 7
5c = -5
Now divide both sides by 5.
5c/5 = -5/5
c = -1
Answer: The number is -1.
Ok I understand how you were confused by how they worded it but the two types of digits that are the same are the 9 in the thousands place and the nine in the ten thousands place.
The digit that is ten times bigger than the other is the 9 in the ten thousands place. I already toldyou the values I n each place.
Answer:
x = +5
Step-by-step explanation:
The triangles ADB and BDC are similar. Thus it is possible to write an equation of ratios and solve it for x:
x 10
----- = -------
10 4x
Cross-multipying, we get:
4x^2 = 100, which yields x = +5
The equation is y=2.5x.
Let the y axes increase by 2.5 and the x axes by ones
-29= x + (x + 1)
-29= 2x +1
-30= 2x
-15=x
The answer is -15, -14.
