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klasskru [66]
3 years ago
12

How can you use 4×7 to find 8×7

Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
7 0
If you think about it, 4x7 is half of 8x7 (If you multiply 4, 7, and 2, you get 8x7). So really you can just multiply 4x7 by 2 and you will get 8x7!
patriot [66]3 years ago
6 0
So if u look 4x7 is half of 8 x7 so times 4 and 7 then just double it
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Find the median and mean of the data set below: 30, 39, 24, 19, 18 Median Mean​
Eva8 [605]

Answer:  mean=26 , median=24

Step-by-step explanation:

Mean=Sum of all values/number of values

mean= 30+39+24+ 19+18/5

         = 130/5

 mean=26

Median

arrange data in order

    18,19,24,20,39

In the case of ungrouped odd-numbered data, the number that  divided data into 2 equal parts is called the median.

so median=24

4 0
2 years ago
Read 2 more answers
Find the scale factor of the dilation. Then tell whether the dilation is a reduction or and enlargement...
faltersainse [42]
Scale factor is 1/3
And I think it's an enlargement
5 0
3 years ago
ASAP: I need as soon as possible with this question I have taken a picture of. If you could tell me how to do it and the answer,
VladimirAG [237]

Answer:

The answer to your question is h = 125.85 ft = 126 ft

Step-by-step explanation:

Process

1.- Determine two equations to solve the problem

    tan 14 = \frac{h}{x}                     (1)

    tan 47 = \frac{h}{x - 386}           (2)

    from (1)                           h = xtan14

    substitute in (2)             tan 47 = \frac{xtan14}{x - 386}

    solve for x                     tan47(x - 386) = xtan14

                                          1.07x - 413.9 = 0.25x

                                          1.07x - 0.25x = 413.9

                                           0.82x = 413.9

                                           x = 413.9/0.82

                                           x = 504.76 ft

2.- Calculate h

                                          h = 504.76 tan 14

                                          h = 125.85 ft = 126 ft

4 0
3 years ago
Y=x-4 y=4x+2<br> whats the solution of system equations
Fittoniya [83]

Answer:

X=-2

Y=-6

Step-by-step explanation:

Since both equations are already expressed in the simplest form of y, then we equate them to be equal hence

x-4=4x+2

Bringing like terms together

-4-2=4x-x

Solving both sides

-6=3x

Making x the subject then

X=-6/3=-2

Subsrituting the value of x into any of the initial equations

Y=x-4 then y=-2-4=-6

Therefore, the solution is

X=-2

Y=-6

6 0
3 years ago
Help please answer :(
VLD [36.1K]
Area=length * width
You know area and width. Plug in and solve.
24=length*4
Length =6 meters
3 0
3 years ago
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