48/5
9x5+3 divide by 5
45+3 divide by 5
48/5
The equation can be used to determine t, the weight of the textbooks is t = 0.7w
Given:
let
Total weight = w
Weight of notebook = n
Weight of backpack = b
Weight of textbook = t
w = n + b + t
where
n = 4 pounds
b = 2 pounds
t = 0.7w
So
w = 4 + 2 + 0.7w
w - 0.7w = 4 + 2
0.3w = 6
w = 6/0.3
w = 20
Recall,
t = 0.7w
= 0.7(20)
= 14 pounds
Therefore, the weight of the textbook is 14 pounds
Learn more about equation:
brainly.com/question/4916384
Answer:
B
Step-by-step explanation:
Y = 8x + 12
if x = -6
y = 8(-6) + 12
y = -48 + 12
y = - 36
if y = 13
13 = 8x + 12
13-12 = 8x
8x = 1
x = ¹/₈ ≈ 0.125
379 * 8 = 3032
If the answer choices are:
A. Between 2,400 and 2,500
B. Between 2,400 and 2,800
C. Between 2,400 and 3,000
D. Between 2,400 and 3,200
Then the answer is D. Between 2,400 and 3,200.
