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3 years ago

PLS THIS IS MY LAST QUESTION

Mathematics

1 answer:

MrRa [10]3 years ago

5 0

Answer: x = 5.625

Step-by-step explanation: The triangles are similar; the side lengths of the large triangle are proportional to the lengths of the small triangle. The corresponding parts are proportional.

Use proportion. The total length of side FV is 16.

6:16 = x:15 . or 6/16=x/15

cross multiply 15 × 6 = 90, then divide 90/16

90/16 = x

5.625 = x

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Swimming Pool On a certain hot summer's day, 236 people used the public swimming pool. The daily prices are $1.50 for children a

forsale [732]

Answer:

Step-by-step explanation:

$a+c=236\\ \\ a=236-c\\ \\ 1.5c+2.5a=525\\ \\ 1.5c+2.5(236-c)=525\\ \\ 1.5c-2.5c+590=525\\ \\ -c=-65\\ \\ c=65\\ \\ a=236-65\\ \\ a=171\\ \\ \text{So there were 171 adults and 65 children at the pool that day.}$

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3 years ago

800+800+800+1,000+2,000+200 =

salantis [7]

Answer:

5600

Step-by-step explanation:

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4 years ago

Write an equation fo nth term of the given arithmetic sequence 7,13,19,25,...

Leya [2.2K]

Answer:

The nth term for the given sequence can be written as:

$a_n=6\,n+1$

Step-by-step explanation:

Notice that this arithmetic sequence is created by adding to each term a common difference of 6 units:

7 + 6 = 13

13 + 6 = 19

19 + 6 = 25

Then, using the general expression for the nth term of an arithmetic sequence of first term " $a_1$ " and common difference "<em>d</em>" we can write the nth term as:

$a_n=a_1+(n-1)\,d$

which in this case translates as:

$a_n=a_1+(n-1)\,d= 7\,+(n-1)\,6=7+6\,n-6=6\,n+1$

8 0

3 years ago

Read 2 more answers

Please help me in number 20 please I need it ASAP

Ad libitum [116K]

Answer:

$r=\sqrt{\frac{A}{\pi}}$

Step-by-step explanation:

Given:

The area 'A' of a circle with radius equal to 'r' is given as:

$A=\pi r^2$

In order to rewrite the given formula in terms of radius 'r', we need to isolate 'r'.

Dividing both sides by π, we get:

$\frac{A}{\pi}=\frac{\pi r^2}{\pi}$

As $\frac{\pi}{\pi}=1$ , the above equation becomes:

$r^2=\frac{A}{\pi}$

Taking square root both the sides, we get:

$\sqrt{r^2}=\sqrt{\frac{A}{\pi}}\\r=\sqrt{\frac{A}{\pi}}$

We neglect the negative result while taking square root as the radius can't be a negative number.

Thus, the formula for radius 'r' in terms of area 'A' is given as:

$r=\sqrt{\frac{A}{\pi}}$

6 0

3 years ago

Please help!

Liono4ka [1.6K]

The equation
a/4 = 2/3
do cross multiplication
8 = 3a
a = 8/3

Performing the expression.
= (a - 4) / 4
= (8/3 - 4) / 4
= (8-12 / 3)/4
= -4/3 / 4
= -1 / 3

So the answer is letter b.

6 0

4 years ago