Answer:
(a)
(b)
Step-by-step explanation:
We are required to write an equivalent expression that uses only addition for each of the given term.
Note that the product of + and - is always -.
Therefore:
(a)20−9+8−7
(b)4x−7y−5z+6
Answer:
2 6 12
Step-by-step explanation:
there are the only factor of 12 there
Answer:
(√5)/5
Step-by-step explanation:
(1/√5)
= (1 ÷ √5) × 1
= (1 ÷ √5) × (√5 ÷ √5)
= (√5 ÷ 5)
Answer:
1000 grams
Step-by-step explanation:
1 liter= 1000 grams
Answer:
x = people who chose pepperoni = 252
Step-by-step explanation:
Number of people : people who chose pepperoni = 25 : 18
how many people would you expect to choose pepperoni
out of 350 people?
Let x = people who chose pepperoni
Number of people : people who chose pepperoni = 350 : x
Equate both ratios
25 : 18 = 350 : x
25/18 = 350/x
Cross product
25*x = 18*350
25x = 6,300
x = 6,300/25
x = 252
x = people who chose pepperoni = 252