teresass
teresass
13-01-2018
Mathematics
contestada
how do you do this?
please help if possible!
Respuesta :
Catya
Catya
13-01-2018
(a) need to find the number of books, we'll call it "b". then the money (6w) minus the cost of books (17b) equals change left over (w)
6w - 17b = w
6w - w = 17b
5w = 17b
(5/17)w = b
(b) if w = 34
(5/17) *34 = b
10 = b
Answer Link
ray2me123
ray2me123
13-01-2018
a) Solution:
Angela bought some books for $17 each.
That means , she bought x books for $17x
Initially, she had $6w.Later she has $w left.
Writing this as a equation,
6w-17x=w
6w-w=17x
5w=17x
x=5w/17➡Ans 1
b) Solution:
If w=34,
↪x=5×34/17
=10➡Ans 2
So , she bought 10 books in this case.
Answer Link
VER TODAS LAS RESPUESTAS ( 95+ )
Otras preguntas
How to convert 0.39 into a fraction?
A 36-tooth gear turns three times. It is connected to a 12-tooth gear. How many times does the 12-tooth gear turn?
If the circumference of a baseball is 24 cm what is the volume of the object
Why was nature so important to Anne Frank? (The Diary of Anne Frank) Please help!!!
what two large alliances took shape before the beginning of world war 1
find the sum of 3b/b+2 and 12/b+2 and express it in simplest form
Two ships leave whittier, Ak at 7 AM. The first ship sails towards Valdez on a 54° course at a constant rate of 36 mi/h. The second ship sails towards Knight is
When the following is balanced, C₄H₁₀ + O₂ → CO₂ + H₂O, what is the coefficient of CO₂? a. 2 b. 4 c. 8 d. 10 e. 13
what two large alliances took shape before the beginning of world war 1
If the circumference of a baseball is 24 cm what is the volume of the object