13 + the cost of 1 brush + the cost of 1 brush = total money spent
Answer: 30
Step-by-step explanation: i’m not sure but my hw says it’s right
We know that
angle (3x) and angle (9x) are supplementary angles
so
3x+9x=180°------> 12x=180°------> x=180°/12-----> x=15°
angle (9x) and angle (1) are supplementary angles
so
9x+∡1=180---------> 9*15+∡1=180
∡1=180-9*15---------> ∡1=180-135------> ∡1=45°
the answer is
∡1 is 45°
alternative method
angle 1 = angle 3x----------> vertical angles
∡1=3x-----> 3*15-----> 45°
Answer:
d
Step-by-step explanation:
Lila uses lb of flour to make the bread.
Since she uses lb less to make bread than cookies then flour used to make the cookies = -
=
= lb
She used lb more flour to make cookies than brownies then flour used to make brownies = -
= = lb
Therefore, flour used to make brownies in lb.