3 years ago

The average person blink 15 to 20 times per minute how many times does the average person blink in an hour

Mathematics

1 answer:

Lostsunrise [7]3 years ago

5 0

Answer:

900-1200

Step-by-step explanation:

mutpliy by 60

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I need help with this V-4=v+2+7v-42 ??

zubka84 [21]

Answer:

$\boxed{\bold{v \ = \ \frac{36}{7}}}$

Step-by-step explanation:

Subtract v from both sides

$\bold{v-4-v=v+2+7v-42-v}$

Simplify

$\bold{-4=2+7v-42}$

Switch sides

$\bold{2+7v-42=-4}$

Group like terms

$\bold{7v+2-42=-4}$

Subtract the numbers: 2 - 42 = -40

$\bold{7v-40=-4}$

Add 40 to both sides

$\bold{7v-40+40=-4+40}$

Simplify

$\bold{7v=36}$

Divide both sides by 7

$\bold{\frac{7v}{7}=\frac{36}{7}}$

Simplify

➤ $\bold{v=\frac{36}{7}}$

5 0

3 years ago

(-w^3 + 8w^2 – 3w) + (-8w^2 + w + 3) =

kherson [118]

The expression simplified is -w^3-2w+3

I hope this helped

4 0

3 years ago

If 5^-x = 25, what is the value of 5^0.5x?

scoundrel [369]

Answer:

1/5

Step-by-step explanation:

$5^{-x}$ = 25 so x = -2 because $5^{2}$ = 25

if x = -2 then plug in: 5^1/2(-2) = 5^-1 = 1/5

3 0

3 years ago

10. the quotient is 58 and the remainder is 3. What is the number

KiRa [710]

Answer:

Step-by-step explanation: 58 - 3 = 55.

3 0

2 years ago

Which three lengths could be the lengths of the sides of a triangle?

Montano1993 [528]

C. 7 cm by 7 cm by 43 cm

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3 years ago