Seudónimo
Seudónimo
24-02-2017
Mathematics
contestada
HELP!!!!!!!!!!!!!!!!!!!!
Respuesta :
baabaagreysheep
baabaagreysheep
24-02-2017
8x - 4y = -32
-3x + 4y = 42
(add)
5x = 10
÷ 5
x = 2
(-3 × 2) + 4y = 42
-6 + 4y = 42
+ 6
4y = 48
÷ 4
y = 12
So x = 2 and y = 12, or (2, 12)
I hope this helps!
Answer Link
Аноним
Аноним
24-02-2017
8x - 4y = -32
-3x + 4y = 42
---------------------add
5x = 10
x = 2
8x - 4y = -32
8(2) - 4y = -32
16 - 4y = -32
-4y = -32 - 16
-4y = -48
y = 12
answer (2,12)
Answer Link
VER TODAS LAS RESPUESTAS ( 34+ )
Otras preguntas
Guess the rule and add the next number in the sequence. 1, 5, 13, 25, 41, ?
what's pcr stand for?
Does anyone know what 'intercepts' and 'gradient' is in Algebra. Doing revision for Math Exam and can't find it anywhere in notes. Please give me a definition a
How did Draco's (The Draconian) contribution change the government? Info is below, please help. My name is Draco. I am an Athenian lawmaker who introduced the f
Oliver can't seem to learn all the types of animals living in a desert habitat. which type of memorization strategy might you recommend to him? a. categorizing
PQR is a right-angled triangle. PQ = 16 cm. PR = 8 cm. Calculate the length of QR. Give your answer correct to 2 decimal places.
The polynomial function f(x) = 10x6 + 7x – 7 is graphed below. According to the rational roots theorem, which is a possible root at point P? A. The root at poin
A certain quadratic function passes through the points (1,12) , (2,-6) , and (-1,12) , find the formula.
The income from the club’s bake sell was $240. Expenses for the sale totaled $40. What is the total profit or loss from the bake sell
What was an unintended effect of the Writs of Assistance passed by Great Britain on the colonies after the French and Indian War? • it discouraged the colonist
