Answer:
Her current age is 8 years old.
Step-by-step explanation:
Current age: x
"In 10 years, a child’s age will be 6 years less than triple her current age."
In 10 years: <u>x + 10</u>
6 years less than triple: <em>3x - 6</em>
<u>x + 10</u> = <em>3x - 6</em>
<em>solve.</em>
<em>16 = 2x</em>
<em>x = 8</em>
Answer:
in given triangle
applying Pythagoras theorem
(29)^2= (12)^2 + (x)^2
= 841= 144 + x^2
841-144 = x^2
697= x^2
x = square root of 697
x= 26.4
I'm guessing the question is "what's the equation"?
When slope and 1 point are known
Since it is a y-intercept then x=0 and the point is
(0,5)
b = y - mx
b = 5 --3 * 0
b = 5
Then we enter the slope and value of "b" into this equation
y = mx + b
y = -3x + 5
Take the formula of a rectangle and use substition to fill in the information you already know.
A= LxW
57f = L x 3.8f
Now use the balance method to figure out what the length is. You're really just doing algebra.
57f= L x 3.8f
57f ÷ 3.8 f = L x 3.8f <span>÷ 3.8f
</span>
15f= L
ANSWER: The length of the sidewalk in 15 feet.
CHECK:
A= L x W
A= 15f x 3.8f
A= 57 feet