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3 years ago

It took Jaheim 2 hours to read the first 100 pages of a book what was his speed?

Mathematics

2 answers:

Andrej [43]3 years ago

8 0

Answer:

50 pages per hour 1

Step-by-step explanation:

100/2 is 50

jeka943 years ago

4 0

If in 2 hours he read 200 pgs then in 1 hour will be 50 pgs

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Which of the following has a solution set of {x | x = 0}?

notka56 [123]

Answer:

(b) (x + 1 ≤ 1) ∩ (x + 1 ≥ 1) = {x | x = 0}

Step-by-step explanation:

Here, the given expression is : {x | x = 0}

So, the ONLY element in the given set = {0}

Now, take each option and solve the given expression:

(a) x + 1 < -1

Adding -1 BOTH sides, we get:

x + 1 -1 < -1 -1

or, x < - 2 ⇒ x = { -∞ , .... , -4,-3}

Also, x + 1 < 1

Adding -1 BOTH sides, we get:

x + 1 -1 < 1 -1

or, x <0 ⇒ x = { -∞ , .... , -4,-3,-2,-1}

So, (x + 1 < -1) ∩ (x + 1 < 1) = { -∞ , .... , -4,-3}∩ { -∞ , .... , -4,-3,-2,-1}

= { -∞ , .... , -4,-3}

⇒ (x + 1 < -1) ∩ (x + 1 < 1) ≠ {0}

Similarly, solving

(b) (x + 1 ≤ 1) ∩ (x + 1 ≥ 1)

(x + 1 ≤ 1) = x≤ 0 = { -∞ , .... , -4,-3,-2,-1, 0}

(x + 1 ≥ 1) = x ≥ 0 = {0,1,2,3,... ∞}

⇒ (x + 1 ≤ 1) ∩ (x + 1 ≥ 1) = {0}

(b)(x + 1 < 1) ∩ (x + 1 > 1)

(x + 1 < 1) = x < 0 = { -∞ , .... , -4,-3,-2,-1}

(x + 1 > 1) = x > 0 = { 1,2,3,... ∞}

⇒ (x + 1 ≤ 1) ∩ (x + 1 ≥ 1) = Ф

Hence, (x + 1 ≤ 1) ∩ (x + 1 ≥ 1) = {x | x = 0}

8 0

3 years ago

Read 2 more answers

Write an expression that is equivalent to 3y − 9.

dybincka [34]

Answer:

3(y-3)

Step-by-step explanation:

just factor out the greatest common factor

7 0

3 years ago

38% of e is 190. What is the value of e?

Taya2010 [7]

Answer:We have, 38% × x = 190

or,

100

× x = 190

Multiplying both sides by 100 and dividing both sides by 38,

we have x = 190 ×

100

x = 500

If you are using a calculator, simply enter 190×100÷38, which will give you the answer.

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Subtract -3n^2 from -7n^2

Sergeeva-Olga [200]

Answer: 4n^2

Step-by-step explanation: -3n^2 - (-7n^2) = -3n^2 + 7n^2= 4n^2. When adding and subtracting the exponents stay the same only the coefficients are subtracted or added

5 0

2 years ago

Given m||n, find the value of x.<br> 135

Viefleur [7K]

Answer: Option C.

Step-by-step explanation:

Let as consider the complete question is same as question shown in the below figure.

In the figure m║n.

If a transversal line intersect two parallel lines then same sided interior angles are supplementary angles and their sum is 180 degrees.

$3x+x=180^{\circ}$

$4x=180^{\circ}$

Divide both sides by 4.

$x=\dfrac{180^{\circ}}{4}$

$x=45^{\circ}$

The value of x is 45 degrees.

Therefore, the correct option is C.

7 0

3 years ago