$62 total food amount
6% tax
20% of original cost of food for tip

62x0.06= 3.72
62x0.2= 12.4

62+12.4+3.72= $78.12

the total cost of the group is $78.12

5 0

3 years ago

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Find the distance between the points (-4, -5 and (3, -1.

Komok [63]

≡ We know that:
⇔ $(x_{1},y_{1})$ → $(-4,-5)$
⇔ $(x_{2},y_{2})$ → $(3,-1)$

≡ Solution:
⇒ $\sqrt{[(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}]}$
⇒ $\sqrt{[(3-(-4))^{2}+(-1-(-5))^{2}]}$
⇒ $\sqrt{[7^{2}+4^{2}]}$
⇒ $\sqrt{[49+16]}$
⇒ $\boxed{\sqrt{65}}$

7 0

3 years ago

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Write a number with one decimal place, that is bigger than 5 1/3but smaller than 5.5​

Write a number with one decimal place, that is bigger than 5 1/3but smaller than 5.5