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3 years ago

What is the value of X? (geometry, right triangles)

Mathematics

1 answer:

Dahasolnce [82]3 years ago

8 0

Answer:

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin30° = $\frac{1}{2}$ , then

sin30° = $\frac{opposite}{hypotenuse}$ = $\frac{x}{10}$ = $\frac{1}{2}$ ( cross- multiply )

2x = 10 ( divide both sides by 2 )

x = 5 → C

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If 111 people attend a concert and tickets for adults cost $4 while tickets for children cost $3.25 and total receipts for the c

VikaD [51]

Answer:

57 children

54 adults

Step-by-step explanation:

Let's call x the number of children admitted and call z the number of adults admitted.

Then we know that:

$x + z = 111$

We also know that:

$3.25x + 4z = 401.25$

We want to find the value of x and z. Then we solve the system of equations:

-Multiplay the first equation by -4 and add it to the second equation:

$-4x - 4z = -444$

$3.25x + 4z = 401.25$

----------------------------------

$-0.75x = -42.75$

$x =\frac{-42.75}{-0.75}\\\\x=57$

Now we substitute the value of x in the first equation and solve for the variable z

$57 + z = 111$

$z = 111-57$

$z = 54$

5 0

3 years ago

Read 2 more answers

Y’all what’s this I’m so confused help

Snowcat [4.5K]

Answer:

x = 66

Step-by-step explanation:

√(x - 2) + 3 = 11

Subtract 3 from both sides: √(x - 2) = 8

Square both sides: x - 2 = 64

Add 2 to both sides: x = 66

8 0

2 years ago

Please help! I'll mark as brainliest

Rudik [331]

Answer:

your work is not clearly taking sorry i can't see

7 0

3 years ago

Can someone please help me ?

jok3333 [9.3K]

Yes. they are the same shape flipped

5 0

3 years ago

Which expression is equivalent to (5 x 6)*(3 * 2)?

castortr0y [4]

Answer:

A=16

B=55

C=336

Ta Answer.orect

3 0

2 years ago