Answer:
24. x = 8.
25. x = -9, 10.
Step-by-step explanation:
The zeros of the functions are the solutions to the equation when y=0. To find the solution, factor each equation.
24. Look for two factors that multiply to 64 and add to -16. The factors are -8 and -8. Write them in binomial forms.
(x-8)(x-8)
So x = 8.
25. Look for two factors that multiply to -90 and add to -1. The factors are 9 and -10. Write them in binomial forms.
(x+9)(x-10)
So x = -9, 10.
440=80+x, subtract 80 (Kcal) from the total amount of calories to get the burger Kcal
Answer:
jacket is $99 at a discount of $11 off regular price
add the discount back on to get regular price which is $99+$11=$110
$110x.10=$11
therefore the jacket is sold at a 10% discount
Step-by-step explanation:
Rachel paid $33.60 for 12 rolls.
Unit rate paid by Rachel = 
= 2.8
From table,
Kevin paid $6.40 for 2 rolls.
Unit rate paid by Kevin = 
= 3.20.
Check:
Kevin bought 5 rolls for $16
5 × 3.2 = 16
He also bought 8 rolls for $25.6.
8 × 3.2 = 25.6.
If we compare the unit rates paid by Rachel and Kevin,
Rachel's unit rate is <u>less</u> than Kevin's because <u>3.2</u> is greater than <u>2.8</u>.
