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2 years ago

How many solutions for x does the following equation have? 2(x + 4) − 1 = 2x + 7

Mathematics

1 answer:

4vir4ik [10]2 years ago

8 0

Answer:

The equation has infinity solutions

Step-by-step explanation:

we have

$2(x+4)-1=2x+7$

Applying distributive property left side

$2x+8-1=2x+7$

Combine like terms

$2x+7=2x+7$

The linear equation of the left side is equal to the linear equation of the right side

Both lines are identical

therefore

Is a consistent dependent system

The equation has infinity solutions

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3 years ago

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Find the sum of all the integers from 1 to 100 that are not multiples of 7

Mars2501 [29]

Answer:

4343

Step-by-step explanation:

To find multiple of 7 from 1 to 100,

Take the quotient of 100/7=14

n=100 (number of terms)

n=100-14 (Without Multiple of 7=number of terms - multiple of 7)

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3 years ago

What is the surface area of the triangular prism?

Marizza181 [45]

Answer:

222 cm²

Step-by-step explanation:

Each triangle's area is 6 cm², each side rectangle's area is 75 cm², and the bottom rectangle's area is 60 cm². Since there are two triangles, two side rectangle's, and one bottom rectangle, you would add all of their areas together:

6 + 6 + 75 + 75 + 60 leads you to the answer of 222 cm².

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