Answer:
(a, b) = (-8, -29)
Step-by-step explanation:
The two relations can be written as the equations ...
a - b = 21
5a -2b = 18
Subtracting 2 times the first equation from the second, we have ...
(5a -2b) -2(a -b) = (18) -2(21)
3a = -24 . . . . . simplify
a = -8 . . . . . . . divide by 3
Substituting into the first equation, we have ...
-8 -b = 21
-b = 29 . . . . . . add 8
b = -29 . . . . . . multiply by -1
The values of a and b are -8 and -29, respectively.
Greatest = 9.6<span> × 10^7
Smallest = </span><span>2.4 × 10^4
G/S = </span><span>9.6<span> × 10^7 / </span>2.4 × 10^4 = 4000</span>
Answer:
y=-1/2
Step-by-step explanation:
9x+5y=8
9x-3y=12
so 8y= -4
y=-1/2
if my answer helps please mark as brainliest
<span>a) 2/3 = .6666666666
b) 6/16 = .375
c) 1/8 = .125
d) 9/10</span> = .9
So from least to greatest, the list goes c b a d
Answer:
6 minutes
Step-by-step explanation:
The ant can crawl 40 cm per minute but is pushed back 5 cm every minute aswell. In total the ant will crawl 35 cm per minute (40 - 5 = 35).
In order to find how long it will take for the ant to reach the hole we <u>divide</u> 210 by 35 (210/35) to get the answer of 6, therefore it takes the ant 6 minutes to reach the hole.
