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3 years ago

X/3.5=2 please help ASAP

Mathematics

2 answers:

Vlad1618 [11]3 years ago

7 0

Answer:

Step-by-step explanation:

x/3.5=2

3.5x/3.5=2 x 3.5

7=x

Mrrafil [7]3 years ago

4 0

Answer:

x = 7

Step-by-step explanation:

$\frac{x}{3.5} = 2$

Since x is divided by 3.5, you can isolate x by applying the inverse of this operation, multiplication.

$x = 3.5 \times 2$

$x = 7$

(You could also think of it as cross multiplication between equivalent fractions.)

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4 years ago

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3 years ago

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4 years ago

Consider the two expressions 4b(b+1) and (2b+7)(2b-8). Compare their values if b=-3, b=-2, and if b=10. Is it true that for an v

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Answer:

FIRST EXPRESSION:

- If $b=-3$ , the value of $4b(b+1)$ is $24$

- If $b=-2$ , the value of $4b(b+1)$ is $8$

- If $b=10$ , the value of $4b(b+1)$ is $440$

SECOND EXPRESSION:

- If $b=-3$ , the value of $(2b+7)(2b-8))$ is $-14$

- If $b=-2$ , the value of $(2b+7)(2b-8))$ is $-36$

- If $b=10$ , the value of $(2b+7)(2b-8))$ is $324$

Yes, for any value of "b" the value of the first expression is greater than the value of the second expression.

Step-by-step explanation:

Substitute the given values of "b" into each expression and evaluate.

- For the first expression $4b(b+1)$ , you get:

If $b=-3$ → $4(-3)(-3+1)=24$

If $b=-2$ → $4(-2)(-2+1)=8$

If $b=10$ → $4(10)(10+1)=440$

- For the second expression $(2b+7)(2b-8))$ , you get:

If $b=-3$ → $(2(-3)+7)(2(-3)-8)=-14$

If $b=-2$ → $(2(-2)+7)(2(-2)-8)=-36$

If $b=10$ → $(2(10)+7)(2(10)-8)=324$

You can observe that for any value of "b" the value of the first expression is greater than the value of the second expression.

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3 years ago