lali73
lali73
23-02-2021
Mathematics
contestada
60d+65n=2800
50d+45n=2150
Respuesta :
armannarimanyan04
armannarimanyan04
23-02-2021
From the second equation we can find that d=43-(9/10)*n
we can put this equation into the first one,
So we have equation 60(43-(9/10)*n)+65n=2800
Solving that we get n=20
60d+65*20=2800
d=25
So the answer is d=25 and n=20
Answer Link
VER TODAS LAS RESPUESTAS ( 28+ )
Otras preguntas
if I could please get help with part 1 and 2 -part 3 asks find the thermal energy transferred. Answer in units of kJ
Two rural Alberta towns experience changes in population due to the construction of a new highway. Equations modelling the population of each town, where
reasons why bible is reffered to as a library
Which of the following is an important problem with our reliance on betas and CAPM for capital budgeting purposes? 1) Neither beta nor CAPM appear to capture an
Identify A-E in the scheme below: LDA CH₃(CH₂)2Br NaH Isobutyl bromide?
Question 11 of 20 Multiply. (2x+6)² A. 4x²+24x+36 B. 4x² + 36 C. 4x² + 12x+36 D. 4x224x+36
Find the least common denominator for the following trio of rational expressions. (5)/(p²+11p+28) (2)/(p²+2p-8) (9)/(p²+5p-14)
Which of the following strategies is NOT recommended for children who are beginning to stutter?a) Slow your own rate of speech.b) Instruct the child to slow dow
Calculate the pH of the solution: 140.0 ml of 0.25 M HF with 220.0 ml of 0.32 M NaF (Ka of HF = 6.8 x 10⁻⁴)?
which city has a higher median price
