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3 years ago

5

Alena wants 50 people at her birthday party. Due to Corona Virus, she can only have 40% of that total. How many people is she al

lowed to have at her birthday party?
please help i need this asap and its worth 10 points

1 answer:

dsp733 years ago

3 0

Answer:

30 people

Step-by-step explanation:

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HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

kotykmax [81]

Answer:

∠LNM = 38°

∠M = 52°

Step-by-step explanation:

Here, ∠M = x

Let the measure of ∠LNM = ∠1

Now, ∠PNM + ∠1 = 180° (LINEAR PAIRS)

So, ∠1 = 180° - ∠PNM = 180° - 142°

= 38°

⇒∠1 = 38° , or ∠LNM = 38°

Now, in triangle LMN, by ANGLE SUM PROPERTY of a triangle

∠NLM + ∠X + ∠1 = 180°

or, 90° + x + 38° = 180°

⇒ x = 180° - 128° = 52°

Hence, the measure of x = 52° , or ∠M = 52°

5 0

3 years ago

What is 65% of 80x please show your work

ahrayia [7]

<span>You need to do this to make it correct = (65/100)*80
= 52</span>

6 0

3 years ago

3/8 x 2/6 x 4/8 x 5/12

Hatshy [7]

Answer:

$\frac{5}{192}$

Step-by-step explanation:

$\frac{3}{8}*\frac{2}{6}*\frac{4}{8}*\frac{5}{12}\\\\\frac{3}{8}*\frac{1}{3}*\frac{1}{2}*\frac{5}{12}\\\\\frac{1}{8}*\frac{1}{3}*\frac{1}{2}*\frac{5}{4}\\\\\frac{5}{192}$

7 0

2 years ago

marshall27 [118]

The topics you should learn are equating denominators and fractions. This is summing up simple fractions.

So we have to make denominators' numbers the same in order to sum up them all (we can sum fractions if the denominators are the same) , and we did it by cross product (that thing on the picture)

Equating by lcm (least common multiple) is the easiest way, because you might see bigger numbers on other questions, and cross product will bring much bigger numbers, so this technic might confuse you.

By the way lcm of 4 and 5 is already 20

Hope it helps!

5 0

2 years ago

Solve for x. 5 x − 19 ≤ 1 OR − 4 x + 3 < − 6

k0ka [10]

$5x - 19 \leqslant 1$

change

$\leqslant \: to \: =$

given you

$5x - 19 = 1$

making x the subject by transferring the -19 to the right hand side of the equation

$5x = 19 + 1$

$5x = 20$

dividing through by 5

$\frac{5x}{5} = \frac{20}{5}$

$x = 4$

{ ${x:x \leqslant 4}$ }

also given

$- 4x + 3 < - 6$

change the operation sign to =

$- 4x + 3 = - 6$

$- 4x = - 6 - 3$

$- 4x = - 9$

dividing through by -4

$\frac{ - 4x}{ - 4} = \frac{ - 9}{ - 4}$

$x = \frac{9}{4}$

so the truth set is

{x:x>9/4}.

The < sign changes to > because we divided by a negative number when solving for x

4 0

3 years ago