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3 years ago

The equation 12x + 15y = 390 represents the total revenue during a one-day fundraiser. In the equation, x represents the

Mathematics

2 answers:

GuDViN [60]3 years ago

4 0

12x10=120

So, 120+15y=390

390-120=270

So, 15y=270
Therefore, y=18
18 adult t-shirts were sold

spin [16.1K]3 years ago

3 0

If there were 10 youth T-shirts sold, then there were 18 adult T-shirts sold.

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There are 130 people in a

Sonja [21]

Answer:

If 11 people use all three facilities, this means:

22 − 11 or 11 are using the gym and the pool but no the track,

29 − 11 or 18 are using the pool and the track but no the gym,

25 − 11 or 14 are using the gym and the track but no the pool.

How many people use the gym only?

130 − (14 + 11 + 11) = 94

How many people use the pool only?

62 − (18 + 11 + 11) = 22

How many people use the track only?

58 − (14 + 11 + 18) = 15

How many people go in for sports?

94 + 22 + 15 + 11 + 14 + 18 + 11 = 185

How many people use exactly one of the facilities?

94 + 22 + 15 = 131

What is the probability that the person uses exactly one of the facilities?

= 131/185 ≈ 0.7081

Step-by-step explanation:

its a bit confusing

Hope It Helps !!!!

7 0

2 years ago

Someone please help with trig question ASAP!!!! You dont need to do both! Will mark brainliest if right

Zanzabum

Answer:

8 x = 60.10251159

9 x = 3.66062978

Step-by-step explanation:

Hey There!

So to answer these questions we need to use the Law of sines

Consider the following image

So to find x in number 8 we setup an equation

$\frac{x}{sin90} =\frac{48}{sin53}$

now we solve for x

step 1 multiply each side by sin 90

now we have

$x = \frac{48sin90}{sin53}$

if you plug the equation in a calculator you get that

x=60.10251159

<u>( make sure if it says to round to the nearest.... that you round before entering your answer)</u>

For number 9 the equation would be

$\frac{9}{sin90} =\frac{x}{sin24}$

now we solve for x

step 1 multiply each side by sin 24

now we have

$x=\frac{9sin24}{sin90}$

if you plug this into a calculator you get that

x = 3.66062978

<u>(once again if it says to round to the nearest... make sure you round before you put in your answer.)</u>

3 0

3 years ago

A rectangle is drawn on a coordinate plane. Three vertices of the rectangle are points A(−4,3) , B(2,3) , and C(2,−1) . Point D

Varvara68 [4.7K]

Coordinates of D= (-4,-1)

=> distance from point C to point D is 6 units

3 0

3 years ago

Read 2 more answers

Pablo's family began their trip with a full tank of gas in their car. They drove 384.1 miles and stopped to fill their tank back

oksian1 [2.3K]

Answer:

27.05 miles per gallon

Step-by-step explanation:

384.1 miles = 14.2 gallons

x = 1 gallon

14.2x = 384.1

x = 384.1/14.2

= 27.0492958

≈ 27.05 miles per gallon

4 0

1 year ago

Jerry spent 2/3 of his money on a gift for his brother and 1/12 of the money on a card. He saved ther rest. What fractional amou

____ [38]

1 - 2/3 - 1/12 = 3/12 reduced = 1/4

Jerry saved 1/4 of his money.

4 0

3 years ago