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S_A_V [24]
4 years ago
6

What is x+3y=15 and 4×2y=30​

Mathematics
1 answer:
FromTheMoon [43]4 years ago
8 0

Answer:

For the first one, x is 9 and y is 2. 9 + 3(2) = 15. The second is y = 3.75

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The area of a rectangle is 72cm square. Length,/, of the rectangle is 6 cm longer than the width w
Butoxors [25]
As you haven't specifically stated what exactly the question is, I will be assuming that the question is most likely asking for what the dimensions ( length and width ) of the rectangle is. With this in mind, I will be answering the question so here I go...


STEP-BY-STEP SOLUTION:

Let's solve this problem step-by-step.

Let's first establish the formula for the area of a rectangle as displayed below:

Area = Length × Width

A = lw

From this, we will establish the values for each of the parts in the area formula using the information given in the problem as displayed below:

A = 72cm^2

l = w + 6

w = w

Now, we will substitute these values into the area formula and then make ( w ) the subject as displayed below:

A = lw

72 = ( w + 6 ) ( w )

72 = w ( w + 6 )

72 = w^2 + 6w

0 = w^2 + 6w - 72

0 = w^2 + 12w - 6w - 72

0 = w ( w + 12 ) - 6 ( w + 12 )

0 = ( w + 12 ) ( w - 6 )


w + 12 = 0

w = 0 - 12

w = - 12


w - 6 = 0

w = 0 + 6

w = 6

As the answer must be positive as measurements are always positive, the answer must be the option which is a positive number.

Therefore:

w = 6

Using the equation we made for the length before, we can substitute the value of ( w ) to obtain the value of the length as displayed below:

l = w + 6

l = ( 6 ) + 6

l = 12


FINAL ANSWER:

The dimensions of the rectangle are:

Length = 12cm

Width = 6cm


Please mark as brainliest if this was helpful! : )
Thank you <3
7 0
4 years ago
PLEASE HELP ASAP! THANKS SO MUCH
Dimas [21]

27÷36=75

75% of the hats are baseball hats

8 0
3 years ago
Find the measure of the arc or angle indicated.<br> #3 AND #4 please<br> will give brainliest
Anika [276]

Answer:

3=180

4=35

Step-by-step explanation:

7 0
3 years ago
What value of w satisfies the equation<br> w -10 = 0.5w -7?
Maru [420]

Answer:

w = -6

Step-by-step explanation:

w-10= .5w -7

w = .5w +3

-0.5w = 3

w = -6

8 0
3 years ago
In which career would you most likely apply concepts from geometry?
juin [17]
Computer game designer. In order to make certain depictions of shapes, geometry would come in handy.
5 0
3 years ago
Read 2 more answers
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