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Temka [501]
3 years ago
15

Which equation can be used to represent the statement? Half of a number minus seven is one and five-tenths????????????????

Mathematics
1 answer:
Anit [1.1K]3 years ago
7 0
1/2 - 1 5/10hope this is what you were looking '


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Rewrite using a single positive exponent.<br> 7^4 * 7^-9
dmitriy555 [2]
7^4 x 7^-9=<span>0.000059
</span>Thats your answer 
i hope it helped you 


7 0
3 years ago
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Find the area of a TV screen with a width = 40 inches and height = 32 inches
Serggg [28]

Answer:

1280 sq inches

Step-by-step explanation:

A = LW

A = 40 in. * 32 in.

A = 1280 sq inches

7 0
3 years ago
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stack of mail consists of 8 bills, 10 letters, and 6 advertisements. One piece of mail is drawn at random and put aside. Then a
kozerog [31]

INFORMATION:

We know that:

- stack of mail consists of 8 bills, 10 letters, and 6 advertisements.

- One piece of mail is drawn at random and put aside. Then a second piece of mail is drawn.

And we must find P (both are letters)

STEP BY STEP EXPLANATION:

To find the probability, we need to know that we have two events. First, when one piece of mail is drawn at random and put aside and, second, when a second piece of mail is drawn.

These two events are dependent. If A and B are dependent events, P(A and B) = P(A) • P(B after A) where P(B after A) is the probability that B occurs after A has occurred.

So, first

- Probability of A (the first piece is letter)

P(A)=\frac{favorable\text{ }cases}{total\text{ cases}}=\frac{10}{24}

- Probability of B after A

Since A already occurred and one piece of the mail was drawn (a letter), now in total we would have 9 letter and 23 total pieces

P(B\text{ after }A)=\frac{9}{23}

Finally, replacing in the initial formula

P(A\text{ and }B)=\frac{10}{24}\cdot\frac{9}{23}=\frac{90}{552}=0.1630

Finally, the probability would be 0.1630

ANSWER:

P (both are letters) = 0.1630

8 0
1 year ago
Erik drives 19.2 miles in 16 minutes.
Katen [24]

Answer:

Erik's average speed exceeds the speed limit by 6.91 miles per hour.

Step-by-step explanation:

Let suppose that Erik travels at constant speed. Hence, the speed (v), measured in miles per hour, is determined by following equation of motion:

v = \frac{s}{t} (1)

Where:

s - Distance, measured in miles.

t - Time, measured in hours.

Please notice that a hour equals 60 minutes. If we know that s = 19.2\,mi and t = 0.267\,h, then the speed of Erik is:

v = \frac{19.2\,mi}{0.267\,h}

v = 71.910\,\frac{mi}{h}

Which is 6.91 miles per hour above the speed limit.

6 0
3 years ago
When solving the equation 10x + 2 = 22, what is the first thing you're going to do?
Tasya [4]
I would minus 2 from both sides of the equation so that it becomes:

10x \:  =  \: 20
4 0
3 years ago
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