Find the value of z in parallelogram BCDE.

Some four-digit numbers, such as 3003 and 6226, read the same forward and backward. If a boy selects a number from all four-

Norma-Jean [14]

Answer:

The probability of selecting such number = $\frac{90}{9000} = \frac{1}{100}$

Explanation:

4-digit numbers start from 1000 and ends at 9999

So, there are 9000 4-digit numbers present

There are 90 palindrome numbers (which reads the same forward and backward) present between 1000-9999. They are 1001; 1111; 1221; 1331; ... 1001; 1111; 1221; 1331; ... to 9669; 9779; 9889; 9999; 9669; 9779; 9889; 9999

Therefore, the probability of selecting such number = $\frac{90}{9000} = \frac{1}{100}$

3 0

3 years ago

write a word problem that you can represent with the expression 8÷2/3. draw a model and use equation to show the solution

Mariana [72]

Answer:

The word problem is " In a class there are 8 boys and these are 2/3rd parts of total students. How many students are there".

Step-by-step explanation:

The given expression is

$8\div \frac{2}{3}$

We need write a word problem which is solved by the above expression.

Word problem : In a class there are 8 boys and these are 2/3rd parts of total students. How many students are there.

Solution:

Let the total number student be x.

$x\times \frac{2}{3}=8$

Divide both sides by 2/3.

$x=\dfrac{8}{\frac{2}{3}}$

$x=\dfrac{8\times 3}{2}$

$x=12$

Therefore, the total number of students is 12.

4 0

3 years ago

Which is the value of this expression when a=5 and k=-2? [3^2a^-2]^k [3a^-1]

never [62]

Answer: 125/27 as a decimal 4.62963

Step-by-step explanation:

((32)(5−2))−2(3(5−1))

3 0

4 years ago

A supplier has delivered 9 pallets of material to the hardware store. The delivery needs to be inventoried in 1.5 hours. How man

Alex17521 [72]

6 Pallets per hour.

If there are 9 that need to be done in 1.5 hours, we have 9 in 90 minutes. If we divide that by 9, we get 1 every 10 minutes. If we multiply that to get an hour, we get 6 done in 60 minutes.

5 0

4 years ago

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Problem The sum of 3 consecutive odd numbers is 51. What is the second number in this sequence?

Inga [223]

51 / 3 = 17

the middle number is 17

15 + 17 + 19 = 51

8 0

3 years ago

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