A family went out to dinner and their meal cost $45.50. They left a 20% tip. How much tip did they leave?

Mathematics

1 answer:

fiasKO [112]3 years ago

3 0

Answer:

45.5*0.2 which is 9.1

Step-by-step explanation:

Hope this helps plz hit the crown :D

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The triangle shown is reflected across the origin. What are the new coordinates of point B?

Nookie1986 [14]

Answer:

$B) : \: ( 2,4)$

5 0

3 years ago

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a rectangular prism 1/4 centimeter long, 4 centimeters wide, and 1/2 centimeter high. What is the volume, in cubic centimeters,

Hoochie [10]

Answer:

0.5cm^3

Step-by-step explanation:

volume of rectangular prism= length x width x height

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7 0

3 years ago

-8(1 + 5b) – 2(86 – 1) = 50

kati45 [8]

Answer:

b = -57/10

Step-by-step explanation:

Let's first distribute everything out:

-8(1 + 5b) = -8 * 1 + (-8) * 5b = -8 - 40b

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So, we have:

-8 - 40b - 170 = 50

-40b - 178 = 50

-40b = 50 + 178 = 228

b = -228/40 = -57/10

Thus, the answer is b = -57/10.

Hope this helps!

3 0

4 years ago

98-x2=0 solve this with the quadratic formula

Mars2501 [29]

Answer:

x∈{-7√2, 7√2}

Step-by-step explanation:

$98-x^2=0\\\\-x^2+98=0\\\\a=-1\,,\ \ b=0\,,\ \ c=98\\\\x_1=\dfrac{-0-\sqrt{0^2-4\cdot(-1)\cdot98}}{2\cdot(-1)}=\dfrac{-\sqrt{4\cdot49\cdot2}}{-2}=\dfrac{-2\cdot7\sqrt{2}}{-2}=7\sqrt2\\\\x_2=\dfrac{-0+\sqrt{0^2-4\cdot(-1)\cdot98}}{2\cdot(-1)}=\dfrac{2\cdot7\sqrt{2}}{-2}=-7\sqrt2$