Answer:
-5 < x <=-2
Step-by-step explanation:
9<=1-4x<21
Subtract 1 from each side
9 -1<=1-1-4x<21-1
8 <= -4x < 20
Divide each side by -4. That means to flip all inequalities
8/-4 >= -4x/-4 >20/-4
-2 >=x > -5
-5 < x <=-2
Answer:
17
Step-by-step explanation:
divide 1020 by 60
1020 ÷ 60 = 17
meaning that you go 17 mph
To multiply fractions, one must multiply "top by top and bottom times bottom".
Ex.
1/2*2/4=2/8=1/4
I hope this helped!
Answer:
m∠BEF = 65.3°
Step-by-step explanation:
Given:
m∠DEB = 27.2,
m∠DEF = 92.5
Required:
m∠BEF
SOLUTION:
Since B is the interior of ∠DEF, it means ∠DEB and ∠BEF are adjacent angles that make up ∠DEF. And they share the same side, BE.
Therefore:
m∠BEF + m∠DEB = m∠DEF (angle addition postulate)
m∠BEF + 27.2 = 92.5
Subtract 27.2 from each side
m∠BEF + 27.2 - 27.2 = 92.5 - 27.2
m∠BEF = 92.5 - 27.2
m∠BEF = 65.3°
Begin with the addition: 1/2+1/4 = 2/4+1/4 = 3/4
Therefore, 3.50 is 3/4th of your money
You can solve for x (your money) using a simple cross equation
3/4 = 3.5/x
x=(3.5*4)/3
x=4.67