Andre is 3.8 miles away from his house.
<h3>What is mathematical expression?</h3>
Expression or mathematical expression serves as the combination of symbols which is been formed base on rules that depend on the context.
First trail he hiked took him 4 1/2 miles = 4.5 miles
Second trail he hiked took him 2 4/10 closer to his house= -2.4
Third trail he hiked took him 1 7/10 miles further away from his house =1.7
we can write the expression as (4.5 - 2.4 + 1.7)
= 3.8
Therefore, Andre is 3.8 miles away from his house.
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Answer:
Step-by-step explanation:
add 9 to both sides
divide both sides by 3
Plot a solid dot on -4 on the number line because the inequality sign is great than or equal to and x the great than or equal to -4.
The arrow is then pointed to the left >>>>
Answer:
(1, 6) and (1, -4)
Step-by-step explanation:
Do cross multiplication. So 12 multiplied by 2.5, then divided by 10. The answer would be 3.
Answer:
Beryllium, 2 times
Step-by-step explanation:
1.12×10⁻¹⁰ has a higher exponent than 5.6×10⁻¹¹.
-10 > -11
The ratio between them is:
(1.12×10⁻¹⁰) / (5.6×10⁻¹¹)
(1.12 / 5.6) (10⁻¹⁰ / 10⁻¹¹)
0.2 × 10¹
2