Answer:
Step-by-step explanation:
we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
equate to zero
so
substitute in the formula
therefore
StartFraction 7 minus StartRoot 65 EndRoot Over 2 EndFraction comma StartFraction 7 + StartRoot 65 EndRoot Over 2 EndFraction
Step 1: Write the amount of savings in equation
Linda's savings: s=1.55d
Tyron's savings: m=3.90d
Step 2: Add on the extra days to Linda's savings
Linda's savings s=1.55d+3(1.55)
Step 4: Simplify equation
s=1.55d+3(1.55)
s=1.55d+4.66
Step 5: Substitute numbers for d days until Tyron's m savings is greater than Linda's s saving
m=3.90d s=1.55(2)+4.66
m=3.90(2) s=3.10+4.66
m=7.80 s=7.76
On Tyron's second day he will have more money in his savings than Linda does.
Answer:
$11.57
Step-by-step explanation:
Let's call the price of the coffee two years ago by X.
The price increased 10% per year (that is, the price is multiplied by 1+0.1=1.1) over two years, so the current price is:
X * 1.10 * 1.10 = X * 1.21
If the current price is $14, we have that:
X * 1.21 = 14
X = 14/1.21 = 11.57
The price of the coffee two years ago was $11.57
Hello!
1. To figure out the angle measurement when given two other angles from the triangle, it's important to realize that any given triangle's angles will add up to 180.
Since 25 and 52 is given to us, let's subtract 180-25-52 to get 103; this is the angle measurement of 3.
2. Assuming ray LAP is a straight line, we can conclude that 3 and 4 are supplementary angles in which they add up to 180 degrees (line).
Since we know the value for 3, we just need to subtract that from 180, the angle measurement of the line.
180-103=77; angle 4 is measured at 77 degrees
3. The angle's relationship for angles 1, 2, and 3 are correlated. Since they are a triangle, they will always add up to 180 degrees exactly; angles 2 and 3 also equal angle 4. Angle 3 and 4 are supplementary angles, which means they are two angles intersected by a ray.
4. Angles 2 and 3 from the triangle equal angle 4. This works out because those two angles add up to the angle for 4.
Answer:
3x+7
Step-by-step explanation:
