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cestrela7 [59]
1 year ago
5

I need help with my math

Mathematics
1 answer:
netineya [11]1 year ago
6 0

In order to determine the temperature at 11:00 pm, consider that at that time the temperature reduces 5 degrees related to the temperature at 6:00 pm.

Then, subtract 5 to the temaperature at 6:00 pm, which is 5°F:

5°F - 5°F = 0°F

Hence, the temperature at 11:00 pm is 0°F

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POSSIBLE POINTS: 3.33
Triss [41]

Answer:

From the information given, you can write the following system of equations:

x+y+z=16 (1)

5x+4.5y+5.5z=82 (2)

z=x+y (3)

You can replace (3) in (1) and (2):

x+y+x+y=16

2x+2y=16 (4)

5x+4.5y+5.5(x+y)=82

5x+4.5y+5.5x+5.5y=82

10.5x+10y=82 (5)

Now, you have the following equations:

2x+2y=16 (4)

10.5x+10y=82 (5)

You can isolate x in (4):

2x=16-2y

x=8-y (6)

Then, you have to replace (6) in (5):

10.5(8-y)+10y=82

84-10.5y+10y=82

84-82=10.5y-10y

2=0.5y

y=2/0.5

y=4

Now, you can replace the value of y in (6) to find x:

x=8-4

x=4

Finally, you can replace the vaue of x and y in (3) to find z:

z=4+4

z=8

According to this, she should buy 4 apple pies, 4 banana pies and 8 chocolate pies.

3 0
2 years ago
You buy four packages of shoelaces. You pay with a $10 bill and receive $3.24 in change. Determine the price of each package.
Mnenie [13.5K]
I think each package would be $1.69. first you subtract 3.24 from 10 to get what you payed then divide that by 4 to get 1.69
8 0
3 years ago
Drag each equation to show if it could be a correct first step to solving the equation 8(x + 5) = 56.
lana66690 [7]

8(x + 5) = 56

first step id to distribute the 8 through the parenthesis

8x + 40 = 56

5 0
2 years ago
Read 2 more answers
Solve for e. T=e29<br><br><br> ​​ e=±3T√T<br><br> e=±3T<br><br> e=±3T√<br><br> ​ e=±9T√ ​
Anon25 [30]

Answer:

option (3) is correct.

e= \pm 3\sqrt{T}

Step-by-step explanation:

Given T=\frac{e^2}{9}

We have to solve for e.

Consider the given statement,

T=\frac{e^2}{9}

Cross multiply, we get,

\Rightarrow 9T={e^2}

Taking square root both sides , we get,

\Rightarrow \sqrt{9T}=e

We know square root of 9 is 3.

\Rightarrow \pm 3\sqrt{T}=e

Thus, option (3) is correct.

e= \pm 3\sqrt{T}

4 0
2 years ago
What is the domain and range of f(x)=2x-5
Mrrafil [7]

f(x) is a linear function with no restrictions

Domain: x = All real numbers

Range: y = All real numbers

8 0
3 years ago
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