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IceJOKER [234]
3 years ago
14

How would you do these questions?

Mathematics
2 answers:
coldgirl [10]3 years ago
8 0
The answer to the question

Tasya [4]3 years ago
7 0

y=2/1x-1

y= -1/2+1

-3/1

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50r − 6 = 82r − 70.<br> a. r=64<br> b. r= -64<br> c.r=2<br> d.r=-2
lisabon 2012 [21]

Answer:

c

Step-by-step explanation:

Hope this helps.

3 0
3 years ago
A rectangular plot of farmland will be bounded on one side by a river and on the other three sides by a single-strand electric f
likoan [24]

Step-by-step explanation:

Let x be the length and y be the width of the rectangular plot.

The plot is bounded on one side by a river and on the other three sides by a single-strand electric fence. It means,

x+2y = 1500

x = 1500 - 2y ....(1)

We know that the area of a rectangular plot is given by :

A = xy ....(2)

Put the value of x from equation (1) in (2)

A=(1500-2y)y\\\\A=1500y-2y^2 .....(3)

For largest area, differentiate above area equation wrt y.

\dfrac{dA}{dy}=\dfrac{d}{dy}(1500y-2y^2)\\\\=1500-4y\\\\\text{Put}\ \dfrac{dA}{dy}=0\\\\1500-4y=0\\\\y=\dfrac{1500}{4}\\\\=375

Put the value of y in equation (1).

x = 1500-2(375)

= 750 m

Put the value of y in equation (3).

A =1500(375)-2(375)^2\\A=281250\ m^2

Hence, the largest area is 281250 m² and its dimensions are 750 m and 375 m.

3 0
3 years ago
PLEASE HELP!!! <br>Please and thank you
Helga [31]
Hello.

17. ( 3 + 5 ) · 8 = 64

18. 4 · ( 6 - 2 ) + 7 = 23

19. 10 ÷ ( 3 + 2 ) · 4 = 8

20. ( 3 + 6 ) · 2 = 18

---------------------------------
5 0
3 years ago
J=b-q/g solve for b.
Zigmanuir [339]

Answer:

j = b -  \frac{q}{g}  \\ j +  \frac{q}{g }  = b \\ b =  \frac{gj + q}{g}   \\ thank \: you

7 0
2 years ago
the length of a rectangle is 8in. more than it’s width. the perimeter of the rectangle is 88in. what are the width and length of
bixtya [17]

Step-by-step explanation:

itulog mo nalang yan, walang ganun lods

4 0
3 years ago
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