Answer:
The x-coordinate of the solution to this system of equations is <u>1</u>.
Step-by-step explanation:
Given,
We have to find out the x-coordinate of the equation.
Solution,
Let
Again let
Now using elimination method we will solve the equations.
For this we will add equation 1 and equation 2 and get;
Now on dividing both side by '9' we get;
Hence The x-coordinate of the solution to this system of equations is <u>1</u>.
Answer:
the leaf is 8 meters away from the tree
Step-by-step explanation:
we can think of this problem as a right triangle where height represents a leg, and what flew the bird represents the hypotenuse
then we would have to find the other leg
for this we can use Pythagoras
h = hypotenuse = 17 meters
l1 = leg1 = 15 meters
l2 = leg2 = ?
h² = l1² + l2²
17² = 15² + l2²
17² - 15² = l2²
289 - 225 = l2²
64 = l2²
√64 = l2
8 = l2
the leaf is 8 meters away from the tree
Answer:
a) 293 units
b) £57.95
Step-by-step explanation:
a)
New reading: 6538 units
Old reading
: 6245 units
The amount use is the difference between the two readings.
6538 - 6245 = 293
Answer: 293 units
b)
293 is the same as 200 units plus another 93 units.
The first 200 units are charged at 22p per unit
Cost of the first 200 units: 200 units * 22p/unit = 4400p
Remaining units are charged at 15p per unit
Cost of the additional 93 units: 93 units * 15p/unit = 1395p
Total charge: 4400p + 1395p = 5795p = £57.95
Answer: £57.95
Answer:
For #2: It's C. 17 nickels and 15 quarters.
Step-by-step explanation:
17*5= 85
15*25= 375
375+85= 460
add in the decimal:
17* 5 cents= $.85
15* 25 cents= $3.75
$3.75+ $.85= $4.60