Keisha plans to double a recipe for cookies. The single recipe needs 1 3/4 cups of flour. Keisha accidentally breaks her measuring cup and only has a tablespoon with which to measure. How many tablespoons of flour does the doubled recipe require? (4 tablespoons = 1/4 cup)

answer: for each 3 girls there is 2 boys . 3: 2

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y = i/2 xtnop + (3i/2 tnop+ 1)

step-by-step explanation:

the picture is the step by step explanation.

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step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92