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brilliants [131]
3 years ago
10

Which strategy best explains how to solve this problem? Claire bought a cup of coffee and two magazines each Saturday. The coffe

e cost $2.50 and the magazines cost $3.99 each. What is the total amount of money that Claire had spent after 7 Saturdays? A. Work backward. Start with the price of a two magazines ($7.98). Add the cost of a cup of coffee and then divide by 7. B. Make a table. Write the numbers 1 to 7 in the top row of the table (the number of Saturdays). In the first box on the second row write $10.48. This is how much Claire spends on 1 Saturday. In each of the next boxes on the second row, write the amount Claire spends by adding $10.48 to each previous amount. The answer in box 7 is the total amount Claire spent after 7 Saturdays. C. Guess and test. Guess that Claire spent $75. Multiply $3.99 by 2. Then add that answer to $2.50. Divide this answer into 75. If the answer is not 7, then revise your guess, and test your answer again.
Mathematics
1 answer:
Nonamiya [84]3 years ago
7 0
B is the best strategy. (You mentioned an option D, but it's not shown in your question!!)
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A water park charges $6 for admission and $1.50 for each ride ticket. You have $36. How many ride tickets can you buy? Graph you
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You can make an equation
  6+x(1.5)=36
 -6             -6

x(1.5)=30
/1.5    /1.5
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x=20
You can buy 20 tickets or less  so 
x is less than or equal to 20
B

5 0
3 years ago
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Find the area of an equilateral triangle with 12-inch altitudes
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\textit{area of an equilateral triangle}\\\\ A=\cfrac{s^2\sqrt{3}}{4}\qquad \qquad A=\cfrac{~~ \left( \frac{24}{\sqrt{3}} \right)^2 \sqrt{3}~~}{2}\implies A=\cfrac{~~ \frac{24^2}{3} \sqrt{3}~~}{2} \\\\\\ A=\cfrac{192\sqrt{3}}{2}\implies A=96\sqrt{3}\implies A\approx 166.28

4 0
2 years ago
Taylor Swift wants to find the distance, AB, across a river. She starts at point B and walks along the edge of the river 94 ft a
ad-work [718]

Answer:

A) Ms. Swift can conclude that hey are similar, because line E,C,A is collinear, and they both are right triangles.

B) 158.3ft

Step-by-step explanation:

A) Having a collinear line makes the triangles similar, and because of their collinear line they are both right triangles.

B) The question tells you DE is 103 ft. You take 76ft and Square it giving you 5776ft You then take 103 and square it giving you 10609ft adding them together gives you 16385ft you take the square root of it and it gives you the hypotenuse of triangle CDE. To get the hypotenuse of triangle ABC you take The expression (AB/DE)=(BC/CD)=(AC/EC) step one (AB/DE)=(94ft/76ft)=AC/DE) step two (103ft/127ft)=(94ft/76ft)=(AC/DE) third step (103ft/127ft)=(94ft/76ft)=(128ft/158.3)

I truly hope this helps! :)

8 0
3 years ago
The director of a museum recorded the number of students and adult chaperones in several school groups visiting the museum. She
sasho [114]

Answer:

b. 119

Step-by-step explanation:

7 0
2 years ago
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The difference of two numbers is more than 12,and one of the numbers is 3
klio [65]
X+y = 12
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Substitute it in 1st equation,
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Substitute it in 1st eq.,
x = 12-4.5 = 7.5

So, the two numbers are 7.5 & 4.5

Hope this helps!
6 0
3 years ago
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