kieante01
kieante01
03-06-2017
Mathematics
contestada
PLZZZZ NEED HELP!!!!!
Respuesta :
jamiexx
jamiexx
04-06-2017
use simultaneous equations
a + c =6 (1)
45a + 15c = 150 (2)
from (1)
c = 6-a (3)
sub 3 into (2)
so the answer is 45a + 15(6-a) = 150, so is B
Answer Link
VER TODAS LAS RESPUESTAS ( 34+ )
Otras preguntas
which of these actions is an example of tribute? a. one country trades goods with another in an even exchange. b. one country conquers another and takes its
The fizz produced when a tablet of Alka-Seltzer dissolves in H2O comes from the reaction of sodium carbonate,, NaHCO3, and citric acid, C6H8O7:. 3NaHCO3+C6H8O7-
What is the difference between scattering and reflection, refraction, transmission and diffraction?
Describe how mutations lead to genetic variations. Please support your answer.
Which of the following is a conservative value? A. Expanding government protection for the unemployed B. Expanding the power of police to enforce drug laws C
In ∆ABC, if the lengths of a, b, and c are 22.5 centimeters, 18 centimeters, and 13.6 centimeters, respectively, what are m < B and m m B = 89.68°, and m
In order to improve the condition of your muscular system, you could participate in aerobic activity at least __________.
In simplest form, what is the ratio of triangles to circles? A set of shapes is arranged as follows: triangle, circle, square, circle, circle, square, triangle,
1. What is the first step in reading dramatic dialogue? (1 point) organize predict explain
What does the equal sign with the wavy line above it mean?
