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Ivahew [28]
2 years ago
15

Can somebody help me with this problem?

Mathematics
1 answer:
Dmitriy789 [7]2 years ago
3 0
A=bh
A=53*47
A=<span>2491cm^2</span>
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The costs of 5 similar digital cameras and 3 similar video cameras is $3,213. Each video camera costs 4 times as much as each di
mariarad [96]
Let,
digital cameras be "x"
video cameras be "y"
Now,
According to the question,
5x + 3y = $3,213..................................................equation (1)
y = 4x..................................................................equation (2)

Taking equation (1)
5x + 3y = $3,213
Substituting the value of "y" from equation (2), we get,
5x + 3(4x) = $3,213
5x + 12x = $3,213
17x = $3,213
x = $3,213 / 17
x = $189

Taking equation (2)
y = 4x
Substituting the value of "x", we get,
y = 4 ($189)
y = $756

Now,
John buys a digital and a video camera. So, it costs him ($189 + $756) = $945

7 0
3 years ago
The National Weather Service keeps track of the temperature for a given day in a given city. It also keeps track of this informa
8090 [49]
The correct answer for this question is: The <span>period(s) of time where the average rate of changes to zero is </span>"b.The average rate of change of temperature is 0 from 2 PM to 4 PM and also from 10 AM to 8 PM; Nothing can be concluded about the actual temperature fluctuation."
5 0
3 years ago
Read 2 more answers
Complete the missing value in the solution to the equation −4x−y=24
Vedmedyk [2.9K]

Answer:

-4x-y=24= - 4 · (-7) - 4 = 24

 

6 0
3 years ago
Lee Jenkins worked the following hours as a manager for a local Pizza Hut: 67, 9,6 and 8 How many total hours did Lee
PSYCHO15rus [73]

Answer:

90 hours

Step-by-step explanation:

  1. 67 + 6 + 9 + 8 = 90 hours
8 0
3 years ago
Round to the nearest hundredth please answer I really need it
iVinArrow [24]
<h3>Answer: 35.54 degrees</h3>

How I got this answer:

tan(angle) = opposite/adjacent

tan(A) = BC/AC

tan(A) = 5/7

A = arctan(5/7)  .... apply the inverse tangent, same as arctangent

A = 35.5376778 ... make sure your calculator is in degree mode

A = 35.54 .... rounding to two decimal places

8 0
3 years ago
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