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DochEvi [55]
3 years ago
10

The sum of the digits of a two-digit number is 15. Four times the tens digit plus twice the ones digit is 18. What is the number

?
Mathematics
1 answer:
kotegsom [21]3 years ago
6 0

Answer:

what does the fox say?

Step-by-step explanation:

nenenene

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Sharifa's white ball rolled 143 centimeters in 4 seconds and her green ball rolled 112 centimeters in 3 seconds. Which ball roll
Natalka [10]

Answer: B

Step-by-step explanation:

The green ball

Speed=Distance/Time

White ball 143/4=35.75

While green ball 112/3=37.33

37.33>35.75

6 0
3 years ago
In the equation 5 + 3x - 7 = 10, what are the like terms?
WITCHER [35]

Answer:

5 , -7 , 10

Step-by-step explanation:

8 0
2 years ago
The random variable X~(30,2^2) <br> Find p(X&lt;33) <br> Find p(X&gt;26)
Ostrovityanka [42]

Answer:

i) P(X<33)  = 0.9232

ii) P(X>26) = 0.001

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the mean of the Population = 30

Given that the standard deviation of the Population = 4

Let 'X' be the Normal distribution

<u>Step(ii):-</u>

i)

Given that the random variable  X = 33

               Z = \frac{x-mean}{S.D}

               Z = \frac{33-30}{2} = 1.5 >0

P(X<33) = P( Z<1.5)

              = 1- P(Z>1.5)

             = 1 - ( 0.5 - A(1.5))

             = 0.5 + 0.4232

  P(X<33)  = 0.9232

<u>Step(iii) :-</u>

Given that the random variable  X = 26

               Z = \frac{x-mean}{S.D}

               Z = \frac{33-26}{2} = 3.5 >0

P(X>26)  = P( Z>3.5)

              = 0.5 - A(3.5)

              = 0.5 - 0.4990

             = 0.001

P(X>26) = 0.001

5 0
2 years ago
What is the final amount if 286 is increased by 7% followed by a further 9% increase?
sladkih [1.3K]

Answer:

333.56

Step-by-step explanation:

286×1.07=306.02

306.02×1.09=333.56

4 0
3 years ago
All Seasons Plumbing has two service trucks that frequently need repair. If the probability the first truck is available is 0.75
oksano4ka [1.4K]

Answer: There is a probability of 0.05 that there is neither truck is available.

Step-by-step explanation:

Since we have given that

Probability that the first truck is available = 0.75

Probability that the second truck is available = 0.50

Probability that both trucks are available = 0.30

So, probability that either first truck or second truck is available is given by

P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\P(A\cup B)=0.75+0.50-0.30\\\\P(A\cup B)=0.95

We need to find the probability that neither truck is available.

so, P(A∪B)'=1-P(A∪B)

P(A\cup B)'=1-0.95=0.05

Hence, there is a probability of 0.05 that there is neither truck is available.

4 0
3 years ago
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