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anygoal [31]
3 years ago
5

The Meyer family spent $65 on dinner and left a 20% tip. What was the total cost of their meal?

Mathematics
1 answer:
Tema [17]3 years ago
8 0
The answer is D.$13.
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What is the common interest of $628 5% and 4 months?
ch4aika [34]

i = prt
i = 628 \times .05 \times 4
i = 31.40 \times 4 = 125.60
4 0
3 years ago
Please help and thank you
galina1969 [7]

Answer:I am not sure sorry

Step-by-step explanation:

7 0
3 years ago
Some registered nurses earn $141.75 for working 4.5 hours. What is the hourly rate?
Blizzard [7]
The hourly rate is $31.50
4 0
3 years ago
Read 2 more answers
Which expressions are equivalent to −tan⁡ θ?
zzz [600]

Answer:

−1/cotθ

1/cot(−θ)

tan(−θ)

Step-by-step explanation:

The tangent function is a the ratio for an angle defined as opposite / adjacent.  A negative applied to −tan⁡ θ will give the opposite value. This is also true for the function when taken on a negative angle. tan(−θ) = −tan⁡ θ. This identity is also true for sin, sec, and cot. Recall that cotangent is the reciprocal of tangent and is defined as the ratio adjacent / opposite. Taking the reciprocal of cotangent will be the same as tangent. Using this information the following are equivalent:

1/cotθ

−1/cotθ  ----> The reciprocal of Cot is Tan

1/cot(−θ) ----> The reciprocal of Cot is Tan and cot(−θ) = −cot⁡ θ.

−1/cot(−θ)

tan θ

tan(−θ)----> tan(−θ) = −tan⁡ θ

7 0
3 years ago
As your costumer increases, your list goes as follows, 12, 14, 16, 18,....
aleksandr82 [10.1K]

Answer:

1. 24

2. 10+2n where n denotes number of days.

3. 70

Step-by-step explanation:

1.

Consider the sequence: 12,14,16,18,...

Here,

14-12=2\\16-14=2\\18-16=2

Take the common difference as d = 2 and the first term as a = 12

Use the formula: a_n=a+(n-1)d

To find expected gain at the end of the week, find a_7

a_7=12+(7-1)2\\=12+6(2)\\=12+12\\=24

2.

Yes, the gain shows the pattern.

Put a=12,d=2 in a_n=a+(n-1)d

a_n=12+(n-1)2\\=12+2n-2\\=10+2n

Here, n denotes number of days.

3.

To find expected gain at the end of 30  days, put n=30 in a_n=10+2n

a_{30}=10+2(30)\\ =10+60\\=70

7 0
3 years ago
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