Answer:
July savings= $35
August savings= $ 105
Step-by-step explanation:
Let's represent her JULY savings as "x"
Let's represent her August savings with (3 * x), since she saved three times her July savings.
Her Total savings for the both months are the sum of JULY savings and AUGUST savings which is equal to $140.00
Therefore:
x + 3x = $140
4x = $140
Divide through by 4
x = $140 / 4
x = $ 35.
It means the JULY savings (x) = $35.
Let's solve for AUGUST SAVINGS:
= 3 * x
When x = $35
August Savings = 3 * $35
= $ 105
Answer:
Below in bold.
Step-by-step explanation:
10x² + 3x -2 = -1
10x^2 + 3x - 1 = 0 Taking 10 out from the first 2 terms:-
10(x^2 + 0.3) - 1 = 0 Completing the square:
10[(x + 0.15)^2 - 0.15^2] - 1 = 0
10[(x + 0.15)^2 - 0.0225] - 1 = 0
10(x + 0.15)^2 - 0.225 - 1 = 0
10(x + 0.15)^2 - 1.225 = 0 is vertex form.
The vertex (turning point is at (-0.15, -1.225).
y- intercept is at the point where x = 0,
- that is at y = 10(0.15)^2 - 1.225 = -1
So at (0, -1).
Solving for x:
10(x + 0.15)^2 - 1.225 = 0
(x + 0.15)^2 = 0.1225
x + 0.15 = +/- sqrt 0.1225
x = -0.15 +/- sqrt 0.1225
The roots are -0.5, 0.2
Answer:
33-40-45
Step-by-step explanation:
Answer:
It doesnt have to be, you are making it. It's really just addition multiplication divison and subtraction in different ways
Step-by-step explanation:
Answer:
$550
Step-by-step explanation:
400x=2200, x is the number of groups needed to get 2200 pounds.
If you divide both sides by 400, you'll get x=5.5
Next, multiply 5.5 by $100 because each group gives $100
hope this helps!
