The equation is
×
First, you need to solve the bases/exponents
is 5×5×5=125
Then you solve the second base/exponent but know that with negative exponents, you divide 1 by the number rather than multiplying
= 1÷5÷5=.04
So now the equation is 125×.04=5
Answer: 5
Answer:
<u><em>Decimal</em></u><u><em>:</em></u>
h = 4.2 ft
<em><u>Fraction</u></em><em><u>:</u></em>
ft
Step-by-step explanation:
<u><em>Cross multiply.</em></u>
h · 15 = 9 · 7
<u><em>Simplify.</em></u>
15h = 63
<u><em>Divide each side by 15.</em></u>
15h ÷ 15 = 63 ÷ 15
<em><u>Simplify.</u></em>
h = 4.2
Answer:
h=2/ab
Step-by-step explanation:
Answer:
The solution is x = -2, y = -3
Step-by-step explanation:
Let's start with the equation 3x + y = -9
Substitute the y for 5x+7 seen in the second equation
Now you have 3x + (5x+7) = -9
Lets solve:
Let's add the x's
Now we have 8x + 7 = -9
Substracy seven from each side
Now we have 8x = -16
Now let's divide 8 on each side
Now we have x = -2
Now lets plug in -2 to the second equation
The second equation is y = 5x+7
When we plug in -2 we get y=5(-2)+7
We multiply
We now have y = -10+7
Add
y = -3
The solution is x = -2, y = -3
