Loretta:
Average driving speed = 55 mph
Time = 4 hours
Distance traveled = 55*4 = 220 miles

Dad:
Average driving speed = 65 mph
Let x = hours driven
Distance traveled = 65x miles

The length of the trip is 610 miles, therefore
65x + 220 = 610
65x = 390
x = 6 hours

Answer: Loretta's dad drove for 6 hours.

7 0

3 years ago

Jenna buys 12 lb of meat. Some of the meat is chicken and costs $1.90/lb. The rest is beef, which costs $4.30/lb. She spends a t

Softa [21]

If the number of pounds of chicken is represented by c, then the number of the pounds of beef is 12 - c. The equation that best represent the given conditions above based on the total amount that Jenny spent is,
1.9c + 4.3(12 - c) = 34.8
The answer is letter D.

8 0

3 years ago

An organic farmer wanted to find out how many eggs a typical hen lays during 1 month. She chose 8 hens at random from the 60 hen

Marat540 [252]

First, you add them all together, and divide them by the number of quantities there are, so:
9+9+8+11+11+12+12+8= <span>80. Then you divide it by 8 (how many numbers there are) to get 10!</span>

8 0

3 years ago

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Which is true about the polynomial –8m3 + 11m? It is a binomial with a degree of 2. It is a binomial with a degree of 3. It is a

gavmur [86]

Answer:

It is a binomial with a degree of 3.

4 0

3 years ago

Read 2 more answers