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juin [17]
3 years ago
13

Answer these pls Hshshsjjdhdnnddndndbdbdnx

Mathematics
1 answer:
ivann1987 [24]3 years ago
4 0
1. 4/7 2. 1/2 3. 28/105 4. 20 or 20/1

5. 12 or 12/1 6. 9 or 9/1 7. 33/30 or 1 3/30

8. 16/60 or 4/15 9. 15/20 or 3/4

10. 10/24 or 5/12 11. 4 19/24

12. 68/45 or 1 23/45 13. 3/4 of time

14. 1/8 (not 100% sure)
You might be interested in
Question is on the picture !
Nataly [62]

Answer: 122.5

======================================================

Explanation:

First thing to do is to find the perimeter of figure B. Add up all the sides and we get: 5+9+9+12 = 14+21 = 35.

The scale factor 7:2 means that if the perimeter of figure A was 7, then the perimeter of figure B would be 2. Or it could be 14 for A and 4 for B. And so on. The idea is that the two perimeters scale up or down together. This allows us to set up the proportion below in which we can solve for x

(perimeter of A)/(perimeter of B) = 7/2

x/35 = 7/2

x*2 = 35*7 .... cross multiply

2x = 245

2x/2 = 245/2 .... divide both sides by 2

x = 122.5

The perimeter of figure A is 122.5

4 0
3 years ago
An average of 145 people visited a 4-day exhibition on the first 3 days. Another 205 people visited the exhibition on the fourth
Alenkinab [10]

Answer:

160 visitors.

Step-by-step explanation:

Given:

An average of 145 people visited a 4-day exhibition on the first 3 days, <u>means here average people visited in 3 days is given 145.</u>

Average = 145

Number of people, n = 3

Another 205 people visited the exhibition on the fourth day.

To find:

What is the average number of visitors per day ?

Solution:

<u>First of all we will find total number of people visited in 3 days:-</u>

As we know:

Average=\frac{Sum\ of\ observation}{number\ of\ observation}

145=\frac{Sum\ of\ observation}{3}\\

Multiplying both sides by 3

145\times3=\frac{Sum\ of\ observation}{3}\times3\\435=Sum\ of\ observations

Thus, we found that total number of people visited in 3 days is 435 and as 205 people visited in fourth day, then total number of people increased to

435 + 205 = 640

Now, sum of total observations( total number of people ) = 640

And number of observation ( number of days ) = 4

Now, we will calculate average number of visitors visit per day :-

Average=\frac{Sum\ of\ observation}{number\ of\ observation}

             =\frac{640}{4} \\=160\ visitors

Thus, the average number of visitors per day is 160 visitors.

             

6 0
3 years ago
What are the equations for these?? someone plz help me:(
vovangra [49]

Answer:

Can u give me a picture more clear

6 0
3 years ago
A right rectangular prism has a length of 9 inches, a width of 10 inches, and a height of 11 inches. If a plane slices the prism
quester [9]
See the picture attached to better understand the problem

we know that

the <span>smallest face of the prism is the face ABCD
</span>so
the <span>shape of the two-dimensional cross-section is a rectangle 9 in x 10 in
therefore

the answer is
the option </span><span>C.
a 9-inch by 10-inch rectangle</span>

6 0
3 years ago
Gonna.........................
AlladinOne [14]

Answer:

B. -8

Step-by-step explanation:

x-3y=136

18x+3y=-288

add the equations

19x=-152

divide by 19

x=-8

3 0
3 years ago
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