4 years ago

Are the following two ratios proportional?

1 answer:

6 0

8 Broken toys : 42 total toys = 1 Broken toy : 6 total toys

20 Broken toys : 105 total toys = 4 Broken toy = 21 total toys.

Answer: No: They are not proportional.

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Tell whether the rates form a proportion.<br><br> (4. $24 for 16 burgers; $15 for 10 burgers

natali 33 [55]

Answer:

1 burger = $1.50

Step-by-step explanation:

15 ÷ 10 = 1.5

1.50 × 16 =24

4 0

3 years ago

Can someone help me out with number 2?

Norma-Jean [14]

$\sin255^o=\sin(300^o-45^o)=\sin300^o\cos45^o-\cos300^o\sin45^o= \\\\=- \frac{ \sqrt{3} }{2}\cdot \frac{ \sqrt{2} }{2}- \frac{1}{2} \cdot \frac{ \sqrt{2} }{2}=- \frac{ \sqrt{6} }{4} - \frac{ \sqrt{2} }{4}= -\frac{ \sqrt{6}+\sqrt{2} }{4}$