Answer:
b = 10
Step-by-step explanation:
The area (A) of a triangle is calculated as
A = 
bh ( b is the base and h the height )
Here h = 3x + 15 and A = 15x + 75, thus
× b × (3x + 15) = 15x + 75
Multiply both sides by 2 to clear the fraction
b(3x + 15) = 30x + 150
Divide both sides by (3x + 15)
b = 
← factor numerator and denominator
= 
← cancel the factor (x + 5) on numerator/denominator
= 
= 10
Answer:
Turn everything into fractions. You can also combine like terms.
Step-by-step explanation:
Answer:
I think it is 6 sorry if it is wrong
Step-by-step explanation:
;-;
I think b not sure it’s the only one that makes sense
Answer:
David walks 132m.
Using theorem of pythagoras and the dimensions of the kite to calculate. Refer to the picture.
Hope it helps.
