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3 years ago

Last year, 150 students used tablet computers at Luz's school.

Mathematics

2 answers:

vfiekz [6]3 years ago

8 0

Answer:

210 students

Step-by-step explanation:

An increase of 40% means, 100+40 = 140% of the previous value

140% of 150

140/100 × 150

210

Alinara [238K]3 years ago

7 0

Answer:

210

Step-by-step explanation:

Take the number and find 40%

150 * 40%

150*.40 = 60

Add this to the original number since it increase by 40%

150 +60 = 210

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Vera_Pavlovna [14]

Simplified answer would be 60k^2+k

and you get that answer by combining like terms, Good Luck!

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2 years ago

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(+5) + (-8) = ? Correct answers only please.

Shalnov [3]

(+5) + (-8) = -3

That’s what I got.

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2 years ago

]solomon needs to justify the formula for the arc length of a sector. which expression best completes this argument? the circumf

Anna35 [415]

Answer:

$\frac{2 \pi r}{\frac{360^{\circ}}{n^{\circ}}}$ best completes this argument

Step-by-step explanation:

Circumference of circle = $\pi \cdot d$

Where d is the diameter of circle

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So, Number of sectors = $\frac{360^{\circ}}{n^{\circ}}$

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Option b is true

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3 years ago

I will give brainliest for right answer

Nastasia [14]

Answer:

B is correct

Step-by-step explanation:

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3 years ago

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Solve the following equation for x: 6(4x + 5) = 3(x + 8) + 3. Round to the nearest hundredth.

Vera_Pavlovna [14]

Answer:

$\boxed {x = -\frac{1}{7}}$

Step-by-step explanation:

Solve for the value of $x$ :

$6(4x + 5) = 3(x + 8) + 3$

-Use Distributive Property:

$6(4x + 5) = 3(x + 8) + 3$

$24x + 30 = 3x + 24 + 3$

-Combine like terms:

$24x + 30 = 3x + 24 + 3$

$24x + 30 = 3x + 27$

-Take $3x$ and subtract it from $24x$ :

$24x + 30 -3x = 3x - 3x + 27$

$21x + 30 = 27$

-Subtract both sides by $30$ :

$21x + 30 - 30 = 27 - 30$

$21x = -3$

-Divide both sides by $21$ :

$\frac{21x}{21} = \frac{-3}{21}$

$x = \frac{-3}{21}$

-Reduce the fraction to the lowest term by extracting and canceling out $3$ :

$x = \frac{-3\div3}{21 \div 3}$

$\boxed {x = -\frac{1}{7}}$

Therefore, the value of $x$ is $-\frac{1}{7}$ .

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3 years ago