Answer:
122
Step-by-step explanation:
10a+2+5a-2=180
15a=180
a=12
10 x 12=120
120+2=122
B² - 16a + 6
(7)² - 16(1/2) + 5
49 - 8 + 5
49 -13
36
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3b - 2a - 9
3(7) - 2(1/2) - 9
21 -1 - 9
20 - 9
11
-------------------------------
16a - b
16(1/2) - 7
8 - 7
1
-------------------------------
3(7) - 2(1/2) - 9
21 -1 - 9
20 - 9
11
-------------------------------
6(1/2)(7)
3(7)
21
-------------------------------
Answer:
c
Step-by-step explanation:
Answer:
d=104
Dasha's garden had 104 originally
Step-by-step explanation:
let d for dasha and a for Anna
d=4a
a=d/4
d-39=a+39
d-39=d/4 +39
d-d/4=39+39
3/4 d =78
3d=4*78
d=(4*78)/3
d=312/3
d=104
Dasha's garden had 104 originally
Answer:
Step-by-step explanation:
let's make the other number x and add it with -4-5i, equate to 5+6i
add 4 and 5i to both sides to get x on its own:
collect like terms. This is the other number.
