lexieb101
lexieb101
23-08-2016
Mathematics
contestada
5(a + b) + 21 for a=15 and b=27
Respuesta :
4samantha
4samantha
23-08-2016
5(15+b)+21=
75+5b+21=
96+5b=
5b= -95
b= -19 1/5
5(a+27)+21=
5a+135+21=
5a+156=
5a= -156
a= -31 1/5
5(15+27)+21=
75+135+21=
231
Answer Link
Аноним
Аноним
23-08-2016
[tex]5(a + b) + 21[/tex]
[tex]5(a(15) + b) + 21[/tex] [tex]Substitute \ a \ for \ 15 [/tex]
[tex]5(a(15) + b(27)) + 21[/tex]
[tex]Substitute \ b \ for \ 27 [/tex]
[tex]5(15 + 27) + 21[/tex]
[tex] 5*42+21 [/tex]
[tex]210+21 [/tex]
[tex]= 231[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 53+ )
Otras preguntas
An unknown solvent freezes at 36.3°C. When 2.02 g of urea (a non-electrolyte, molar mass = 60.06 g/mol) are dissolved in 25.0 g of the solvent, the solution for
What was the king required to do for his lords?
Badly needed it now.
Which of the following is a correct statement regarding cells produced through meiosis? O They are haploid and genetically diverse O They are diploid and geneti
2 Gandhi Preached truth and non-violence. ACTIVE VOICE
Plz help this is my last question and I can’t get it wrong . what are the coordinates plz
Help plzzzzzzzzzzzzz
Define social darwinism
Solve the equation for x in terms of c.[tex] \large \sf \frac{2}{3} (cx + \frac{1}{2} ) - \frac{1}{4} = \frac{5}{2} [/tex]
write argument for or against the topic it is more advantages to live in the village than in the city
