....
Answer:
d
Step-by-step explanation:
The triangles are similar, thus the ratios of corresponding sides are equal, that is
= = ( cross- multiply )
5(2x + 1) = 8(x + 4) β distribute parenthesis on both sides )
10x + 5 = 8x + 32 ( subtract 8x from both sides )
2x + 5 = 32 ( subtract 5 from both sides )
2x = 27 ( divide both sides by 2 )
x = 13.5 β d
Answer:
Step-by-step explanation:
p+p=99
2p=99
p=99/2
solve for x
3x+6<21
Answer:
x=5
Step-by-step explanation:
This one does not follow the correct rules in math but this is very helpful for "limited time" exams.
3
x
+
6
=
21
Transfer +6 to other side of the equation, converting the sign to opposite one making +6 to -6
3
x
=
21
β
6
Subtract
3
x
=
15
Divide it by the number with
x
3
x
3
=
15
3
Final answer
x
=
5
Incorrect; Only two isosceles triangles can form a rhombus.