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3 years ago

PLEASE HELP ME ANSWER THIS BECAUSE IM NOT SMART

Mathematics

1 answer:

dexar [7]3 years ago

5 0

Answer:

negative

Step-by-step explanation:

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Please assist me with this problem

valentina_108 [34]

Answer:

x = 192

Step-by-step explanation:

The three right triangles in the figure are all similar, so their sides are proportional.

<h3>Proportion</h3>

The length marked x is the long side of the smallest triangle, and the short side of the middle-size triangle. The long side of the middle-size triangle is ...

400 -144 = 256

We now have enough information to write the proportion ...

long side/short side = x/144 = 256/x

Multiplying by 144x gives ...

x² = (144)(256)

x = √(144×256) = 12×16 = 192

The length x is 192 units.

4 0

2 years ago

The ratio of the number of senior tickets sold to the number of adult tickets is 2:3. The ratio of the number of adult tickets t

MatroZZZ [7]

Answer:

The total number of ticket booked altogether for students and adults is 126.

Step-by-step explanation:

The ratio of Number of senior tickets sold: Number of adult tickets = 2:3.

or, Se : A = 2 : 3 ......... (1)

The ratio of Number of adult tickets : Number of student tickets = 6:15

or, A : St : 6 : 15 ........ (2)

Part - A : Given: Senior ticket sold = 24

Now, Let us assume the number of adult tickets sold = m

So Number of Senior tickets : Adult tickets = 24 : m .......... (3)

Comparing (1) and (3)

$\frac{Se}{ A} = \frac{2}{3} = \frac{24}{m}\\ \implies m = \frac{24 \times 3}{2} = 36$

Hence, the number of adult tickets booked is m = 36 tickets

Part - B

Adult tickets booked = 36 (From A)

Now, Let us assume the number of students tickets sold = n

So Number of Adult tickets : students tickets = 36 : n .......... (4)

Comparing (2) and (4)

$\frac{A}{ St} = \frac{6}{15} = \frac{36}{n}\\ \implies n = \frac{36 \times 15}{6} = 90$

Hence, the number of students tickets booked is n = 90 tickets

⇒ The number of adult tickets booked is 36 tickets

⇒Number of students tickets booked is 90 tickets

Hence, the total number of ticket booked altogether for students and adults is 90 + 36 =126.

3 0

4 years ago

The following is PreCal 11, please give me help...<br><br> Factor this:<br> x^2 + 4xy + 4y^2 - 4z^2

pochemuha

Since both terms are perfect squares, factor using the difference of squares formula.

a^2- b^2= (a+b) (a-b) where a=x+2y and b=2z

(x+2y+2z) (x+2y-2z)

5 0

3 years ago

Factor the expression <br><br> r^2 + 21r + 27 <br><br> Don’t guess please

ziro4ka [17]

r^2 + 21r + 27 cannot be factored any further.

Hope this helps!

4 0

4 years ago

Oil change at city auto is regularly $30 Mr. Allen has a coupon for 15% off Who wants to know the sale price of the service. Wha

jek_recluse [69]

Answer:

The sale price is 25.5$ The relationship is that the sale price is 15% less than the regular price.

Step-by-step explanation:

How to find sales price: 30=100% 30÷10=3=10% 3÷2=1.5=5%

Sales price = 3+1.5=4.5, sales price= 30-4.5=25.5

6 0

2 years ago