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3 years ago

The product of 10 and 2 more than a number is 240. Find the number.

Mathematics

1 answer:

Maurinko [17]3 years ago

8 0

Answer:

The number is 220

Step-by-step explanation:

Let n represent the number

10(2) + n = 240

20 + n = 240

240 - 20 = 220

n = 220

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F(x)=-3/5x+k and if f(30)=-11 what is the value of k

Kruka [31]

Answer:

k=20.

Explanation: First we find where f(x) has its local extrema: f'(x)=3x2−10x+3. The critical points are roots of the equation: 3x2−10x+3=0.

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3 years ago

BRAINLYEST

Sedaia [141]

Answer:

2 $\frac{1}{3}$

Step-by-step explanation:

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Hope this helps, good luck! :)

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3 years ago

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The length of a rectangular plot is 6m less than thrice its breath. Find the dimensions of the plot if its perimeter is 148m.

Elena-2011 [213]

length of a rectangle is 6 less than 3 times its width"

L = 3W-6

"perimeter of the rectangle is 148 meters"

2L + 2W = 148

L + W = 74

(3W-6) + W = 74

4W = 80

W = 20 m

L = 3W-6 = 54 m

6 0

3 years ago

What is the mathematical expression for the sum of 2 times 2 and 5 times 6

expeople1 [14]

2x2=4, 5x6=30
Not sure if they’re one expression, of so it’s (2x2)+(5x6)=34

7 0

3 years ago

2. What percent of rolling a 2 3 probability of getting HH

faust18 [17]

Answer:

2. The correct answer option is 25%.

3. The experimental probability is 3% greater than the theoretical probability.

Step-by-step explanation:

2. We are given that a number cube is rolled 20 times out of which 5 times it lands on the number 2.

We are to find the experimental probability of getting the number 2.

P (2) = $\frac{5}{20} \times 100 =\frac{1}{4} \times 100$ = 25%

3. The theoretical Outcomes are: HH HT TH TT

So theoretical probability of getting HH = $\frac{1}{4} \times 100$ = 25%

Total number of outcomes = $28+22+34+16$ = 100

So experimental probability of getting HH = $\frac{28}{100} \times 100$ = 28%

Therefore, the experimental probability is 3% greater than the theoretical probability.

6 0

3 years ago