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sdas [7]
3 years ago
12

mr potters class has a test today for 1 1/2 hours. they have lunch at 11:40 what time should they start the test at

Mathematics
2 answers:
Lelechka [254]3 years ago
8 0
If they plan to start the test before lunch, then they should start at 10:10, because 11:40 subtracted by 1 1/2 hour or 1:30 will equal 10:10.
dybincka [34]3 years ago
3 0
If they plan to start the test before lunch, then they should start at 10:10
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Dayton writes the expression n2+4n+1 for the number of squares used to make the nth figure in the pattern shown. Drag statements
mixer [17]

well that took alot of guesses...

5 0
2 years ago
How can you use exponents to write 10,000,000?
aleksklad [387]

Let's break it down into something more simple:

What's 10 times 10? 100

What's 10 times 10 times 10? 1000

Do you see a pattern? (Cool trick - The number of 10s match the number of 0s in the answer)

We have seven 0s in our answer, so let's check:

10 x 10 x 10 x 10 x 10 x 10 x 10 = 10,000,000

An exponent tells us that we're multiplying the big number by itself however many times the little number in the corner tells us.

So if we multiply 10 by itself 7 times (what we did above), then our answer will be 10 to the power of 7, or 10^{7}. This is equal to 10,000,000.

6 0
2 years ago
LAST QUESTION ON MY TEST PLEASE HELP
Kipish [7]

Answer:

x = 8

Step-by-step explanation:

For this question, you can use power of a point, more specifically when two secants intersect in the interior of a circle. From this, you get the equation:

(7 + x)(12) = (10)(2x + 2)

You can simplify and solve:

84 + 12x = 20x + 20

84 = 8x + 20

64 = 8x

x = 8

4 0
2 years ago
The temperature of a city at sunset was -1 overnight,the temperature decreased by 11 what was the lowest temperature overnight i
docker41 [41]

Answer:

-12

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4 0
3 years ago
In list T, consists of 30 positive decimals. None of which are integers. The sum of the 30 decimals is S. The estimated sum of t
Masteriza [31]

Answer: E - S = (-16 and 6)

Step-by-step explanation:1/3 of the 30 decimals in T have an even tenths digit, it follows that 1/3*(30)=10 decimals in T have an even tenths digit.

Hence: Te =list of 10 decimals

Se = sum of all 10 decimals in Te

Ee =estimated sum of all 10 decimals in Te after rounding up.

Remaining 20 decimals in T all have an odd tenths digits.

To =list of this 20 decimals

So = sum of all 20 decimals in To

Eo = estimated sum of 20 decimals in To

Hence,

E = Ee + Eo and S =Se +So, hence:

E-S, =(Ee+Eo) - (Se+So) =(Ee-Se) +(Eo-So)

Ee-Se >10 (0.1)=1

S=10(1.8)+20(1.9) =18+38=56

E=10(2)+20(1)=40

E-S =40-56=-16.

AlsoS=10(1.2)+20(1.1)=34

E=10(2)+20(1)=40

E-S=40-34=6

6 0
3 years ago
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