admiralhoney66 admiralhoney66

01-02-2020
Mathematics

contestada

the perimeter of a triangle is 49cm.One side is 7cm longer than another side and 5cm shorter than the third side find sides

Respuesta :

Аноним Аноним

01-02-2020

P = a + b + c = 49 cm

a = b + 7 => b = a - 7

a = c - 5 => c = a + 5

_____________________

a + (a - 7) + (a + 5) = 49

3a = 49 + 7 - 5

3a = 51

a = 17 cm

b = 17 - 7 = 10 cm

c = 17 + 5 = 22 cm

Answer Link

Otras preguntas

solve for y.try factoring first,if factoring is not possible or difficult use quadratic formula,(y2 2isabovey -10y+23=0)

The widths of two similar rectangles are 16 cm and 14 cm. What is the ratio of their perimeters? Of their areas? a. 8:7 and 64:49 b. 9:8 and 64:49 c. 8 and 81-

in che anno e nato Cristoforo Colombo

a rectangular table top measures 4/9 of a meter long by 4/5 of a meter wide. the area is _____ square meter.

does anybody know how to write 45/70 in simplest form????

Im not quite sure how to answer this question... A 1000kg rocket is moving at a constant velocity in deep space; it is moving at 40 meters/second when its burne

what are facts on Loyalists?

True or false. If a line L1has equation y = mx + b, where m and b are constants with m ≠ 0, then an equation of a line L2 perpendicular to L1 has the form y = -

which geographic feature most aided england during the industrial revolution?

How do you use Bill of rights in a sentence