1) (3-x) x (3+x)
2) 5(5-x) x (5+x)
3) (3v-wy) x (3v+wy)
4) 2(k-m) x (k+m) x (k^2+m^2)
5) (ab-4c) x (ab+4c)
Brainliest?
Answer:
$240
Step-by-step explanation:
Simple Interest amount 1st year
6000x4x1/100=$240
9+2j=-9-j
+j
9+3j=-9
-9 -9
3j=-18
/3j /3j
j=-6
but in words that would be 9+2j=-9-j plus the j over to the 2j that becomes 3j then minus the 9 over and you get -18 so now you you have 3j=-18 divide by 3 and you get -6
Let the number of dimes be x and the number of quarters be y, then
x + y = 61 . . . . . . . . . . . .(1)
0.1x + 0.25y = 10.90 . . . (2)
From (1): x = 61 - y . . . . .(3)
Putting (3) into (2) gives: 0.1(61 - y) + 0.25y = 10.90
6.1 - 0.1y + 0.25y = 10.90
6.1 + 0.15y = 10.90
0.15y = 10.90 - 6.1 = 4.80
y = 4.80/0.15 = 32
x = 61 - 32 = 29
Therefore, there are 29 dimes and 32 quarters