Let x be the 1st number
x + 9 be the second number

Equation:
x + x+9 = 171

Solution:
2x + 9 = 171
2x = 171 - 9
2x = 162
x = 81
x + 9 = 90

81 + 90 = 171

4 0

2 years ago

Determine the x-intercept of the line whose equation is given:

Rudiy27

Answer:

Green

Step-by-step explanation:

cause blue and red make orange :)

8 0

2 years ago

Read 2 more answers

I dont understand how to simplify an expression with exponents

Mashutka [201]

Answer:

3^4

Step-by-step explanation:

Simplifying an expression with expression with exponents:

If they are dividing, we keep the base and subtract the exponents. For example:

$\frac{a^x}{a^y}=a^{x-y}$

In this question:

$\frac{3^2}{3^{-2}}=3^{2-(-2)}=3^{2+2}=3^4$

8 0

7 months ago

Solve for x. x + 7 -3 = 1<br><br><br> i need help

MA_775_DIABLO [31]

X+7-3=1 X+4=1 -4 -4 X=-3 Copy exactly how you see it

8 0

3 years ago