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Lera25 [3.4K]
3 years ago
9

Help Me with this please

Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
3 0

Step-by-step explanation:

Area is Hight × length

x + 3 = 3x

x + 3 = 3x

3x × 3x = 9x^2

I'm not sure but I think it might be this

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7x +2y = 24<br> 8x+2y= 30<br> What is x and y
Liula [17]

Answer:

x = 6

y = -9

Step-by-step explanation:

we have:

7x +2y = 24    equation 1

8x+2y= 30     equation 2

using equation 2 we have:

8x = 30 -2y

x=\frac{30-2y}{8}  equation 3

using equation 3 in equation 1 we have:

7(\frac{30-2y}{8})+2y = 24

\frac{210}{8} - \frac{14y}{8} +2y =24\\\\\frac{1}{4}y = -\frac{18}{8}  \\\\y=-\frac{18}{8} * 4\\\\y=-9

so we have:

x=\frac{30-2(-9)}{8}

x=\frac{30+18}{8}

x=6

7 0
3 years ago
Read 2 more answers
If ( 43.65 ) ( 8.79 ) / x = ( 0.4365 ) ( 87.9 ) then value of x is:
scZoUnD [109]

Answer:

(d)

Step-by-step explanation:

Multiple your numbers out first. This always makes it less hectic to look at. Multiply both sides by x to move the x to the right side. Then divide both sides by ((0.4365)(87.9)).  You should get 10.

7 0
4 years ago
The owner of a sandwich shop researches the cost of buying different numbers of pounds of sandwich meat. The owner creates a sca
IgorC [24]

Answer:

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Step-by-step explanation:

3 0
4 years ago
Which statement is true about this argument?
gayaneshka [121]

The argument is valid by the law of detachment.

3 0
4 years ago
Read 2 more answers
find the value of r so that the line that passes through (5, r) and (2, -3) has a slope of 4/3. a. 1 b. 7 c. (13/9) d. -1
Margaret [11]
Slope  = (-3 - r) / (2 - 5) 

Slope = <span>(-3 - r) / -3 = 4/3

-(-3 - r) = 4

3 + r = 4

r = 4 - 3

r = 1   option b.</span>
4 0
3 years ago
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