Answer:
x=1
Explanation:
-3x+5=2 subtract 5 on both sides to get -3x=-3 divide -3 from -3 to get 1
Let's use x to represent the number of hours since we don't know that.
750+250x<u><</u><u />2500
Subtract 750 from both sides.
250x<u><</u><u />1750
Divide both sides by 250.
x<u><</u><u />7
The most hours that they can do is 7, or it can be less.
Step-by-step explanation:
y=kxz
13=k x 5 x 8
13= 40k
K=13/40
a. y=13/40 x 4 x 10
y=13/40 x 40
y=13
b. 20=13/40 x x x 12
20=13/40 x 12x
20=<u>156x</u>
40
20 x 40=156x
800=156x
X=<u>800</u>
156
X=<u>200</u>
39
X=5 5/39
C. 15=13/40 x 6 x z
15=<u>78z</u>
40
15x40=78z
600=78z
Z=<u>600</u>
78
Z=<u>100</u>
3
Z=7 9/13
Answer:
y² + bs²y - 6b²s⁴
General Formulas and Concepts:
- Expand by FOIL (First Outside Inside Last)
- Exponent Power Rule:
Step-by-step explanation:
<u>Step 1: Define expression</u>
(y - 2bs²)(y + 3bs²)
<u>Step 2: FOIL</u>
- First: y · y = y²
- Outside: y · 3bs² = 3bs²y
- Inside: -2bs² · y = -2bs²y
- Last: -2bs² · 3bs² = -6b²s⁴
<u>Step 3: Simplify</u>
- Combine: y² + 3bs²y - 2bs²y - 6b²s⁴
- Combine like terms: y² + bs²y - 6b²s⁴
