Answer: a) 25 mph
Explanation:
To find the average speed, we need to divide the total distance by the total time. Here, we have Susana driving a total distance of 125 miles with a time of 5 hours.
We can calculate the average speed by dividing the total distance driven by the total time driven.
125 miles / 5 hours = 25 miles/hour
This gives us answer option a, the average speed of Susana is 25 mph.
Answer:
The average speed is 25 mph
Step-by-step explanation:
We can calculate average speed by dividing the distance and the time interval:
average speed = (total distance traveled/time interval)
= (125 mi/5 hours)
= 25 mph
Her average speed is 25 mph.
a) 25 mph
Answer:
Step-by-step explanation:
According to distributive property under multiplication over addition
We can write a.(b+c)=a.b+a.c
Since, The given expression, (-4h+2)(3h+7)
By applying distribution in first bracket.
we can write, (-4h+2)(3h+7)= -4h(3h+7)+2(3h+7)
Again on applying distribution property,
we get, (-4h+2)(3h+7)= -4h×3h+(-4h)×7+2×3h+2×7
⇒ =
Round your answer, if necessary, to the nearest tenth.
Answer:
47.3 grams
Step-by-step explanation:
Given: A solution contains 4.3 grams of salt per liter.
To find: Amount of salt in 11 liters of the solution
Solution:
Amount of salt in 1 liter of the solution = 4.3 grams
So, amount of salt in 11 liters of the solution = 11 × Amount of salt in 1 liter of the solution = 11 × 4.3 = 47.3 grams
Hence, 11 liters of the solution contains 47.3 grams of salt.
Answer: 47.3
Step-by-step explanation: Khan Academy
So he have to adjust the ro recipe.
500g pork
150g tomatoes
100g butter
120ml water
45g green chilli
8og onion.
a How much of each of the other ingredients
should he use to make pork fing
Answer / Step-by-step explanation:
500g - 300g = 200 {200 ÷ 500 = 0.4} ---- 300g pork
0.4 × 150g = 60g tomatoes
0.4 × 100g = 40g butter
0.4 × 120ml = 48ml water
0.4 × 45g = 18g green chilli
0.4 × 8og = 3.2og onion
Answer:
4.2 × 10⁻⁵
Step-by-step explanation:
The decimal point must be after the first non-zero digit.
⇒ 4.2
Multiply 4.2 by a number that results in 0.000042. That number is 0.00001 or 10⁻⁵.
⇒ 4.2 × 10⁻⁵
Answer:
Sci. Notation= 4.2 x 10 to -5th power
Step-by-step explanation:
1. Go to decimal and move between 4 and 2
2. the number of zeroes after the the initial place of the decimal is the power it goes to
3. you pass four zeroes and the 4 which gives you five places, and the -5th power
Hope this helps :)