Question
what does x = ?
please please help
5x(2x+20)= 90
10x=90-20
10x=70
x=70/10
x=7
plz give brainliest +thanks
Answer:
x = 23
y = 110
Step-by-step explanation:
70 and 3x+1 are alternate exterior angles and that means they are equal
70 =3x+1
Subtract 1 from each side
69 = 3x
Divide by 3
69/3 =3x/3
23 =x
70 and y are same side exterior angles and that means they are supplementary ( add to 180)
70+y = 180
y = 180-70
y = 110
The given expression is 
.
We need to simplify the given expression.
<h3>What is a rational number?</h3>
In mathematics, a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q.
Now group the rational numbers 
Therefore, the simplified value of the given expression is 
.
To learn more about the rational numbers visit:
brainly.com/question/17450097.
#SPJ1
Answer:
$23.80 per pair, $190.4 for 8 pairs
Step-by-step explanation:
a. assuming each pair of jeans is the same price, just divide the total by 3. the price per pair is 71.40/3, which is $23.80 per pair
b. simply multiply the price of one pair of jeans, as found above, by 8. 23.80*8 is $190.4 for 8 jeans
hope this helped!
