3 years ago

Please help me on this

Mathematics

1 answer:

REY [17]3 years ago

8 0

Answer:

21/100

Step-by-step explanation:

0.21 is out of 100 so you divide 0.21 by 100 which will give you 21 and so it is 21 out of 100.

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Find the length of the missing side.

White raven [17]

Answer:

14.4 inches

Step-by-step explanation:

Use the Pythagorean theorem: $a^{2} + b^{2}$

So, this will be: $8^{2} + 12^{2} = c^{2}$

By simplifying we get:

c = $\sqrt{208}$

The missing side is: 14.4 (rounded to the tenth)

3 0

3 years ago

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Please, can somebody help me, thanks!

mario62 [17]

#2 #3 and #5 I think but I could be wrong. Good luck!

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3 years ago

Tickets for a school play sold for $7.50 for each adult and $3.00 for each child. The total receipts for 118 tickets totaled $69

NeX [460]

X= number of adult tickets
y=number of child tickets.
we can suggest this system of equations:
x+y=118 ⇒x=118-y
7.5x+3y=696

we can solve this system of equations by substitution method:
7.5(118-y)+3y=696
885-7.5y+3y=696
-4.5y=-189
y=-189/-4.5
y=42

x=118-y
x=118-42
x=76

Answer: the number of adult tickets sold was 76.

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3 years ago

How fast is somebody running if they run 26.2 miles in 2 hours

lianna [129]

They are running 13.1 miles per hour since half of 26.2 is 13.1

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3 years ago

Put y + 3 = -3(x + 2) in slope-intercept form.

alexgriva [62]

Answer:

$y + 3 = - 3(x + 2) \\ y + 3 = - 3x - 6 \\ y = - 3x - 9$