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artcher [175]
2 years ago
11

40 points need help please asap

Mathematics
1 answer:
Nat2105 [25]2 years ago
3 0

Answer:

1st one is not proportional

2nd one is: y is 5/6 times x

Hope this helps:)

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HELP ME PLZZZZZZZZZZ
kogti [31]

Answer:

In both cases, we have similar figures.

This means that the shape of the figures is the same, but the size is different:

PQST is similar to STNR and to NRPQ

VUYZ is similar to YZWX and to VUWX

this means that, for example, in problem 18, the ratio between ST and NR must be the same as the ratio between PQ and ST. This happens because the measure increases by the same scale factor.

With this in mind, we can solve the problem:

18)

ST = 7.5

NR = 5.5

Then the quotient ST/NR is:

ST/NR = 7.5/5.5

And, as we said above:

PQ/ST = ST/NR

PQ/7.5 = 7.5/5.5

PQ = (7.5/5.5)*7.5 = 10.23

19) Here we should have:

YZ/VU = WX/YZ

Then:

22.9/35 = WX/22.9

(22.9/35)*22.9 = WX = 14.98

7 0
3 years ago
Find the sum of the geometric sequence. 4 divided by 3, 16 divided by 3, 64 divided by 3, 256 divided by 3, 1024 divided by 3
Art [367]

Answer:

Sum = \frac{1364}{3}

Step-by-step explanation:

The given geometric sequence is:

\frac{4}{3}, \frac{16}{3}, \frac{64}{3}, \frac{256}{3},\frac{1024}{3}

The first term of the sequence is a_{1}=\frac{4}{3}

The common ratio of the sequence is:

r=\frac{\frac{16}{3} }{\frac{4}{3} }=4

There are 5 terms in total in the given sequence so n = 5

The formula to calculate the sum of finite geometric sequence is:

S_{n} = \frac{a_{1}(1-r^{n}) }{1-r}

Using the given values, we get:

S_{5}=\frac{\frac{4}{3} (1-4^{5}) }{1-5} = \frac{1364}{3}

Therefore, the sum of given geometric sequence is \frac{1364}{3}

5 0
3 years ago
4(-7)<br>show work please ​
Lostsunrise [7]

The equation is asking you to multiply.

= 4 * -7

= -28

Hope This Helped! Good Luck!

6 0
3 years ago
Read 2 more answers
Connor wants to attend the town carnival. The price of admission to the carnival is $4.50, and each ride costs an additional 79
inysia [295]
4 rides because that is enough to afford
5 0
3 years ago
A tap is filling a 10-liters tank at the speed of 5 liters per minute.
SVETLANKA909090 [29]

Answer:

<em />

  • <em>It takes</em><u>     2.5 minutes   </u><em>to fill the tank.</em>

Explanation:

The net speed or net rate for filling the 10-liters tank is equal to the speed the tap is filling less the speed the water is leaking through the hole located at the bottom of the tank:

  • Net rate = rate of filling - rate of leaking
  • Net rate = 5 liters/minute - 1 liter/minute
  • Net rate = 4 liters/minute

Thus, consiedering the tank is empty at the beginning, the time is:

  • Time = Volume of the tank / net rate of filling
  • Time = 10 liters / (4liters/minute)
  • Time = 2.5 minutes ← answer
4 0
3 years ago
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