Eva spent $11.61 downloading songs, each song cost $1.29. four students wrote and solved equations to find s, the number of songs that she downloaded. which student wrote and solved the equation correctly?
a. seba’s work
1.29s=$11.61
s=10
b. ari’s work
$1.29s=$11.61
s=9
c. erick’s work
s/$1.29=11.61
s=14.98
d. daniel’s work
s/$1.29=$11.61
s=9

Option B.

Step-by-step explanation:

Let

s-----> the number of songs that Eva downloaded

we know that

The linear equation that represent the situation is

Solve for s

Divide by 1.29 both sides

therefore

Ari's work is correct

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

answer: the answer is 30 miles per hour.

ft/s -> mphmph = ft/s 1.466667mph = 44 divided by 1.466667mph = 30.00000

- r3ktforgood ☕