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icang [17]
2 years ago
10

On January 22 in 1943, the town of Spearfish, South Dakota, set the record for the world’s fastest temperature change. At 7:30 a

.m., the temperature was −4°F. By 7:32 a.m., the temperature was 45°F. By 9:00 a.m. the same day, the temperature was 54°F. By 9:27 a.m., the temperature was −4°F. What is the difference between the temperature at 7:30 and the temperature at 9:27? Make sure to show whether the change was positive or negative.
Mathematics
2 answers:
Maru [420]2 years ago
7 0

Answer:

Nothing Changed

Step-by-step explanation:

at 7:30 it was −4°F and at 9:27 it was still −4°F.
However in-between the timelines +58° then it went down 58°

makvit [3.9K]2 years ago
6 0

Answer:

Nothing changed, so 0.

Step-by-step explanation:

The temperature went up 58 degrees and then was down 58 degrees by 9:27.

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X minus 2 is equal to 7​
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X = 9

Add both values 7 + 2 = 9, which is x.

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A volunteer group picked up 3 times as many plastic bottles as cans in their community. The number of papers they picked up was
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4 0
2 years ago
<img src="https://tex.z-dn.net/?f=if%20%5C%3A%20%28%20%5Cfrac%7B3%7D%7B4%7D%20%29%5E%7B6%7D%20%20%5Ctimes%20%28%20%5Cfrac%7B16%7
zhenek [66]

Answer:

2

Step-by-step explanation:

(\frac{3}{4})^6 \times (\frac{16}{9})^5=(\frac{4}{3})^{x+2}

\frac{3^6}{4^6} \cdot \frac{16^5}{9^5}=\frac{4^{x+2}}{3^{x+2}}

\frac{3^6}{4^6} \cdot \frac{(4^2)^5}{(3^2)^5}=\frac{4^{x+2}}{3^{x+2}}

\frac{3^6}{4^6} \cdot \frac{4^{10}}{3^{10}}=\frac{4^{x+2}}{3^{x+2}}

\frac{3^6}{3^{10}} \cdot \frac{4^{10}}{4^6}=\frac{4^{x+2}}{3^{x+2}}

3^{-4} \cdot 4^{4}=4^{x+2}3^{-(x+2)}

This implies

x+2=4

and

-(x+2)=-4.

x+2=4 implies x=2 since subtract 2 on both sides gives us x=2.

Solving -(x+2)=-4 should give us the same value.

Multiply both sides by -1:

x+2=4

It is the same equation as the other.

You will get x=2 either way.

Let's check:

(\frac{3}{4})^6 \times (\frac{16}{9})^5=(\frac{4}{3})^{2+2}

(\frac{3}{4})^6 \times (\frac{16}{9})^5=(\frac{4}{3})^{4}

Put both sides into your calculator and see if you get the same thing on both sides:

Left hand side gives 256/81.

Right hand side gives 256/81.

Both side are indeed the same for x=2.

4 0
3 years ago
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