KJ^2=6^2+3^2
KJ=the square root of 36+9
KJ=square root of 45
kJ= 3 times the square root of 5
The answer is D
Answer:
17
Step-by-step explanation:
<em>or</em><em>,</em><em> </em><em> </em>4x= 68
<em>or</em><em>,</em><em> </em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>6</em><em>8</em><em>/</em><em> </em><em>4</em>
<em> </em><em> </em><em> </em><em>:</em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>1</em><em>7</em>
Answer:
The answer for A is A- 3.75
And the answer for B is B- 16
Let x and y be the rate per hour for Mechanic 1 and 2 respectively.
Then,
x+y=205 ---------- (1)
Additionally,
10x+15y = 2500 ------ (2)
Solving equations 1 and 2;
Multiply (1) by 10 and subtract two from the result,
10x+10y = 2050
10x +15 y =2500
----------------------
-5 y = --450 => y = 450/5 = $90
Then,
x= 205-90 = $115
Therefore,
Mechanic 1 charged $115 per hour
Mechanic 2 charged $90 per hour