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3 years ago

Janai goes to dinner and the bill comes to $50.00. She has a coupon for 10% off. Tax is 8%. What is her total bill?

Mathematics

1 answer:

kogti [31]3 years ago

8 0

Answer:

$48.60

Step-by-step explanation:

50(.10)=5.00 50-5=45. 45(.8)=3.60. $45.00+$3.60 = $48.60

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Convert 11.42424242 to a rational expression in the form of a/b , where b ≠ 0.

TiliK225 [7]

11.424242
isolate the repeating part
11+0.424242

focus on the repeating part
0.42424242
how many places till it repeats again?
2
let's say it is x
x=0.42424242
multiply by 100
100x=42.424242

subtract them
100x-x=42.42424242-0.42424242
the infinite repeats cancel and we get
99x=42
divide by 99
$x=\frac{42}{99}$

so
$11.\overline{42}=11 \space\ \frac{42}{99}$

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Use the substitution method to solve the system of equations. Choose the

BigorU [14]

Answer:

C. (4,28)

Step-by-step explanation:

When y = 8x - 4 ; x = 4

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y = (8 x 4) - 4

= 32 - 4

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As coordinates it would be (x,y) = ( 4,28 )

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2 years ago

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= 2. Given the quadratic equation 3x2 – 8x + k = 0 has no real roots. Find the range of values of k.

VashaNatasha [74]

$\text{If there are no real roots, then}\\\\~~~~~\text{Discriminant} < 0\\\\\implies b^2 -4ac < 0\\\\\implies (-8)^2 -4 \cdot 3 k < 0\\\\\implies 64-12k < 0\\\\\ \implies 12k > 64\\\\\implies k > \dfrac{64}{12}\\\\\implies k > \dfrac{16}3\\\\\text{Interval,}~ \left( \dfrac{16}3, ~\infty\right)$

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2 years ago

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STatiana [176]

Answer:

42°

Step-by-step explanation:

Sum of all the angles inside of any triangle is always 180°.

Therefore:

180 = y + 90 + 48

y = 180 - 90 - 48

y = 42°

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2 years ago

How can you get a equivalent ratio? I need help!

seraphim [82]

When you can divide, or multiply by the same number. for numerator and denominator.

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