Marian went shopping and bought clothes for $76.17 and books for $44.98. she then had a meal at the mall for $19.15. which is the best estimate of the total cost of her shopping trip?

a. $130
b. $120
c. $150
d. $140

D. $140.

Step-by-step explanation:

Given:

Cost of clothes = $76.17

Cost of books = $44.98

Cost of meal = $19.15

We need to find the best estimate of total cost of her shopping trip.

Solution:

First we will find the total cost of her shopping trip.

total cost of her shopping trip is equal to sum of Cost of clothes, Cost of books and Cost of meal.

framing in equation form we get;

total cost of her shopping trip =

Now we can say that;

140.3 is close to 140

Hence Best estimate of total cost of shopping trip is $140.

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.