-2 times -1 = positive 2
(two negatives cancel out to form a positive)
The scale can translate just by division if we get it down to what 1 cm equals. 1 cm=3 km, so with this given information you can find:
A)
3 Cm=9 Km
B)
1=3, times both sides by 5 that is 5 Cm= 15 Km
Answer:
x = 6
y = -1
Step-by-step explanation:
-2x + 5y = -17 ------ equation 1
3x- 10y = 28 ------- equation 2
equation 1× 2
-4x + 10y = -34 ------- equation 3
equation 2 + equation 3
-x = -6
x = 6
x = 6 substitute for equation 1
-12 + 5y = -17
5y = -5
y = -1
Answer:
3x + 18
General Formulas and Concepts:
<u>Pre-Alg</u>
Step-by-step explanation:
<u>Step 1: Define expression</u>
3(x + 6)
<u>Step 2: Expand</u>
- Distribute 3 to both terms: 3x + 18
