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lilavasa [31]
2 years ago
14

PLEASE HELP I NEED ALOT O HELP IM DOING TEST AND NEED HELP John and Julia went out to dinner. Their dinner cost $42.00. They pai

d their waitress a 20% tip. How much did the waitress get in a tip?
Mathematics
2 answers:
seraphim [82]2 years ago
7 0

Answer:

$8.40

Step-by-step explanation:

20% of 42 is 8.4.

slava [35]2 years ago
4 0
Take the 20% turn it into .2 and times it by 42 to get 8.4
42x0.2=8.40
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Solve for x pls:<br> Options:<br> a) -11 <br> b) 80 <br> c) 51 <br> d) -14
myrzilka [38]

Answer:

x = -11

Step-by-step explanation:

Let the Triangle be named 'ABC'

In Triangle ABC,

∠A = x + 51

∠B = 80               (Intersecting lines, Vertically opposite Angles)

∠C = 60               (Intersecting lines, Vertically opposite Angles)

∠A + ∠B + ∠C = 180  (Sum of angles of Triangle = 180)

x + 51 + 80 + 60 = 180

=> x + 191 = 180

=> x = 180 - 191

=> x = -11

4 0
2 years ago
Read 2 more answers
Look at the picture for the problem
Serjik [45]

Answer:

w = 400

Step-by-step explanation:

2400 = lw

Divide the area by two.

2400 / 2 = 1200

Now this cannot be the answer since the length is longer than the width.

Divide 1200 by two again.

1200 = 600

Notice there are two choices that are the closest:

w = 800

w = 400

The latter choice would be the answer since again, the length is longer than width in terms of measurement

5 0
3 years ago
Read 2 more answers
Name
kaheart [24]

Answer:

Slope is -2/7

Step-by-step explanation:

Slope formula is y₂-y₁/x₂-x₁

So...

(x₁,y₁) and (x₂,x₂) →(2,2) and (-5,4)

4-2= 2

-5-2= -7

2/-7

3 0
3 years ago
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If jobs arrive every 15 seconds on average, what is the probability of waiting more than 30 seconds?
Aleksandr [31]

Answer: 0.14

Step-by-step explanation:

Given: Mean : \lambda=15\text{ per seconds}

In minutes , Mean : \lambda=4\text{ per minute}

The exponential distribution function with parameter \lambda  is given by :-

f(t)=\lambda e^{-\lambda t}, \text{ for }x\geq0

The probability of waiting more than 30 seconds i.e. 0.5 minutes is given by the exponential function :-

P(X\geq0.5)=1-P(X\leq0.5)\\\\=1-\int^{0.5}_{0}4e^{-4t}dt\\\\=1-[-e^{-4t}]^{0.5}_{0}\\\\=1-(1-e^{-2})=1-0.86=0.14

Hence, the probability of waiting more than 30 seconds = 0.14

5 0
3 years ago
Find the next term in the<br> sequence.<br> Simplify completely.<br> 3<br> 3,3<br> 3, 3, [?]
FrozenT [24]
3 or 9 could be an answer
4 0
3 years ago
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