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Sliva [168]
4 years ago
14

Question 13

Mathematics
1 answer:
Inessa05 [86]4 years ago
3 0
D is the correct answer
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PLEASE!!! I NEED THIS ANSWER DESPERATELY
Natasha_Volkova [10]
The answer to this question is 14 degrees Fahrenheit.
T(60) = (-7/6)(60) + 84 = 14
7 0
4 years ago
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The unit digit of a two digit number is one less than the ten digit number. If the number is increase by 8 and then divided by t
Colt1911 [192]

The tens digit is 3; the units digit is 3-1 = 2; and the number itself is 32.

<em>Lets simplify the problem,</em>

Let assume  the "tens" digit be x

Then the "units" difference =  (x-1), according to the condition.

Hence, the number itself is N = 10x + (x-1).

Then the number N+8 is 10x + (x-1) + 8 = 10x + x + 7 = 11x + 7.

From the last statement of the problem, we have this equation

N+8 = 8*(x+y),or11x + 7 = 8*(x+(x-1)).

Simplify and find "x"

11x + 7 = 8*(2x-1)11x + 7 = 16x - 87 + 8 = 16x - 11x15 = 5xx = 15/5 = 3.

Thus the tens digit is 3; the units digit is 3-1 = 2; and the number itself is 32.

Learn more about UNIT Problems on:

brainly.com/question/12253743

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6 0
2 years ago
Three times a number increased by 7 is 100. Find the number.
velikii [3]

Answer:

31

Step-by-step explanation:

100-7= 93

93÷3=31

7 0
3 years ago
Read 2 more answers
Suppose the contact rate for a phone survey is 78% and that 22% of people will participate in that survey. Assume that agreeing
Gnoma [55]
Remember that, for independent events, the probability that both occurr is the product of the individual probabilities.

a) Probability of being contacted: 78% = 0.78

Probaility of refusing: 1 - 22% = 1 -0.22 = 0.78

Combined probability: 0.78*0.78 = 0.6084

b) The probability of failing to contact or making contact and not geeting them to agree 1 - the probability of contacting and getting them to agree.

The probabilityof contacting and getting them to agree is 0.78*0.22 = 0.1716

The the answer to this question is 1 - 0.1716 = 0.8284


 
8 0
4 years ago
On Friday, the temperature changes -30 each hour. If the temperature changed for 7 hours, what is the total temperature change?
Marina86 [1]

A -120 difference will be seen in the temperature within a 7 hour period

<u>Equation</u>

<em>-</em>30 x 7

<em>Multiplying two of different signs ( - + ,  + - ) will always be negative.</em>

<em>Multiplying two of the same sign ( - - , + + ) will always be positive.</em>

8 0
4 years ago
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