Answer:
(x+5)⋅(x+4)= x2+9x+20
Step-by-step explanation:
(x+5)(x+4)
=x
2
+4x+5x+20=
=x
2
+9x+20
The solution to 6×+2y=6 is y=0.5
The solution for 7×+3y=5 is y
= 0.238095 (.238095 is repeated)
Answer:
b=3
Step-by-step explanation:
2b+4b=12
6b^2=12
6b^2 - 6 =12 - 6
b^2/2=6/2
b=3
Answer:
$514.91
Step-by-step explanation:
You want to save a total of ...
5 × $1235.78
You want to do this over a 12-month period. So, you want to save 1/12 of this total each month. The amount you're saving each month is ...
5(1235.78)/12 = 514.908333... ≈ 514.91
You must save $514.91 each month to reach the goal.
Decimals are no fun. It might be a good idea to get rid of the decimals as a first step.
Notice that the smallest decimal value is in the THOUSANDTHS PLACE. So if we multiply both sides by 1000, that should do the trick.
1000( 0.007x + 0.03 ) = 1000( 0.1 )
With each term, we'll move the decimal 3 places.
That's what it means to multiply by 1000.
7x + 30 = 100
From that point the problem becomes quite a bit easier.
Subtract 30,
7x = 70
Divide by 7 as a final step,
x = 10
Hope that helps :)
