For this case what we can do is the following rule of three.
5 pound ---> 12.50 $
x ------------> 7.50 $
Clearing x we have:
x = (7.50 / 12.50) * (5)
x = 3 pounds
Answer:
the weight of the package is:
x = 3 pounds
X + y = 15
x - y =3
First you have to work out what two numbers add together to make 15, for example 1 and 14 or 5 and 10.
Then you have to work out which set of numbers have a difference of 3.
The numbers would be 6 and 9.
Once you have the two numbers, multiply them together:
6 x 9 = 54
Answer:
3/ 1/3
Step-by-step explanation:
You can substitute the whole equation that equals x into the other equation and solve it algebraically, with that x is 23 abd y is -2.2
Answer:
<h2>
Check A, B and D </h2>
Step-by-step explanation:
A. m∠4 = 180° - m∠3
m∠1 = 180° - (m∠3 + m∠2)
m∠3 < m∠3 + m∠2 ⇒ m∠4 >m∠1
B. m∠4 = 180° - m∠3
m∠2 = 180° - (m∠3 + m∠1)
m∠3 < m∠3 + m∠1 ⇒ m∠4 >m∠2
C. Not necessarily {could be but not always}
D. m∠4 = 180° - m∠3
m∠1 + m∠2 + m∠3 = 180° ⇒ m∠1 + m∠2 = 180° - m∠3 = m∠4
E. m∠3 = m∠1 + m∠2 only if m∠3 = 90°
F. Not necessarily. {Could be but also could not be. In the picture is, but we don't know if the diagram is accurate or just approximate.}