jasssminne
jasssminne
12-06-2018
Mathematics
contestada
5a - 10b =45 when b=3?
Respuesta :
vidalmari6p99qfk
vidalmari6p99qfk
12-06-2018
a=15
(-10b = -30)
5a-30=45
5a=75 (45+30)
a=15
75-30 = 45
Answer Link
Creati
Creati
12-06-2018
Hey there! :)
First, substitute b with 3 and multiply by 10
10 × 3 = 30
Here is the new equation:
5a - 30 = 45
45 + 30 = 75
5a = 75
Divide both by 5
5a ÷ 5 = a
75 ÷ 5 = 15
a = 15
Hope this helps
:)
Answer Link
VER TODAS LAS RESPUESTAS ( 79+ )
Otras preguntas
Name the quadrant that the ordered pair (5,-2) lies in
Darcy stayed home from school on Friday.
under the constitution, tge judicial branch must try criminal cases with a _______ 0f one's peers
0.3x +y = 7 represents a linear function
When ethyl acetoacetate (ch3coch2co2ch2ch3) is treated with one equivalent of ch3mgbr, a gas is evolved from the reaction mixture, and after adding aqueous acid
PLEASE HELP! Which statement best describes folk music? a) Harmonies depend on the arranger's decisions. b) The performer follows the composer's directors. c) T
Help please it’s for my niece
One cluster of personality disorders marked by dramatic, attention seeking or impulsive behaviors is exemplified by the ________ personality disorder. avoidant
You roll a number cube you roll a number greater than 3.find probability of each event write it as a decimal
A certain simple pendulum has a period on the earth of 2.00 s . part a what is its period on the surface of mars, where g=3.71m/s2?
