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2 years ago

You and your family went to a restaurant. The bill was $74, and you want to leave a 22% tip. What was the tip?

Mathematics

2 answers:

galina1969 [7]2 years ago

8 0

Answer:

$16.28

Step-by-step explanation:

Multiply 74 by 0.22

Mumz [18]2 years ago

4 0

Answer:

$16.28

Step-by-step explanation:

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anyone please help asap!!! The theater holds 250 people last last nights performance was sold out, students under the age of 16

3241004551 [841]

Answer:

there were 60 people that are under 16 and 190 people above 16.

4 0

3 years ago

The tens digit of a two-digit number is five more than the units digit. Seven times the sum of the digits of this number is 3 le

I am Lyosha [343]

Answer:

Step-by-step explanation:

Let

The unit digit = x

The tens digit = y

The number = 10x + y

The tens digit of a two-digit number is five more than the units digit.

y = x + 5

Seven times the sum of the digits of this number is 3 less than the number itself.

7(x + y) = 10x + y - 3

7x + 7y = 10x + y - 3

Find the number.

We substitute x + 5 for y

7x + 7(x + 5) = 10x + (x + 5) - 3

7x + 7x + 35 = 10x + x + 5x - 3

14x + 35 = 11x + 5x - 3

Collect like terms

35 + 3 = 11x + 5x -14x

38 = 16x - 14x

38 = 2x

x = 38/2

x = 19

Solving for y

y = x + 5

y = 19 + 5

y = 24

The number = 19 + 24

= 43

3 0

2 years ago

Read 2 more answers

What expressions are equivalent to -56z + 28

makvit [3.9K]

Answer:

3b+b and 2(2b)

Step-by-step explanation:

4 0

3 years ago

In which sentence is the underlined word an indefinite article? A. Our dog ate the bone quickly. B. One bird flew over us. C. I

Yanka [14]

It is c i believe hope this is right

4 0

3 years ago

Find the exact value of the given expression.<br> sin(2cos^-1(5/13))

xeze [42]

Answer:

+120/169 or -120/169

Step-by-step explanation:

let $cos^{-1}[\frac{5}{13} ] = \alpha$

where, alpha is some angle that satisfies the assumed condition.

so, $cos\alpha= 5/13$

[ taking cos to the other side or applying cos on both sides]

now, substitute this in the given expression

$sin(2cos^-1(5/13)) = sin(2\alpha )$

as sin $\beta$ = $+ or -\sqrt{1-(cos\beta) ^{2}$

[by general trigonometry formula: $cos^{2}[\beta] +sin^{2}[\beta]=1$ ]

so if $cos\alpha= 5/13$ , we can get sin $\alpha$ from the above formula as + or - 12/13

(because, after taking square root on both sides we keep + or -]

as, sin $2\beta = 2*sin[\beta ]*cos[\beta ]$

[by general trigonometry formula]

here, now $sin[2\alpha ]=2*(+or- 12/13)*5/13\\$

so, the final value can be 120/169 or -120/169.

4 0

3 years ago