Answer:
y = 3x
Step-by-step explanation:
Given
9x - y = - 6x + 4y ( subtract 4y from both sides )
9x - 5y = - 6x ( subtract 9x from both sides )
- 5y = - 15x ( divide both sides by - 5 )
y = 3x
Dress: 93$ at 100-25%=75%
-> divide the marked down cost by the percentage to get the cost of a single percent and then multiply it with the markdown again to get the saved cost
93/75*25=93/3*1=31*1=31$
shoes 119$ at 100-15%=85%
119/85*15=119/17*3=7*3=21
add both savings together for the full sum: 31+21=52$
Answer: cos²(θ) + sin(θ)sin(e)
<u>Step-by-step explanation:</u>
sin (90° - θ)cos(Ф) - sin(180° + θ) sin(e)
Note the following identities:
sin (90° - θ) = cos(x)
sin (180° + θ) = -sin(x)
Substitute those identities into the expression:
cos(x)cos(x) - -sin(x)sin(e)
= cos²(x) + sin(x)sin(e)
Answer:
not a real answer 11
Step-by-step explanation:
jnjg
Answer:
1) A. -10/27
2) Either A or D whichever is supposed to be negative
3) -1 7/10
4) - 1 10/11
5) C. -1 31/33
Step-by-step explanation:
-3 1/3 divided by 9
-3 1/3 = -10/3
-10/3(1/9) = -10/27
-3 3/4 divided by 3
-3 3/4 = -15/4
-15/4(1/3) = -15/12 = -1 3/12 = -1 1/4
-2 1/8 divided by 1 1/4 WHAT IS A MULTI ANSWER?
- 17/8 divided by 5/4
- 17/8(4/5) = 68/40 = 1 7/10
-5 1/4 divided by 2 3/4 WHAT IS A MULTI ANSWER?
-21/4(4/11) = -21/11 = -1 10/11
-5 1/3 divided by 2 3/4
-16/3(4/11) = -64/33 = -1 31/33
