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GuDViN [60]
4 years ago
8

What is the value of x in the equation 3x-4y=65, when y=4?

Mathematics
2 answers:
ipn [44]4 years ago
8 0

Answer:

x = 27

Step-by-step explanation:

Given

3x - 4y = 65 ← substitute y = 4

3x - 4(4) = 65, that is

3x - 16 = 65 ( add 16 to both sides )

3x = 81 ( divide both sides by 3 )

x = 27

melomori [17]4 years ago
6 0
X=17. I hope this helps you young sir/madam
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What is the slope of a line that goes through the point (-7,-2) and (-6,7)
navik [9.2K]

y=mx+b

y2-y1/x2-x1

the answe would be 9

5 0
3 years ago
What is the area of the shaded rectangle
Contact [7]

Answer:

27/70

Step-by-step explanation:

9/10 of the rectangle is shaded on the top and 3/7 of the rectangle is shaded on the side. Multiply those values together to find the area of the shaded rectangle.

9/10 · 3/7 = 27/70

4 0
3 years ago
Can the sides of a triangle have sides of 5, 8, and 16 ???
Nata [24]

Answer:

No.

Step-by-step explanation:

The triangle inequality theorem states that the sum of two sides of a triangle must be greater than the third side.

5 + 8 = 13.

13, which is the sum of two sides, is not larger than 16, the third side.

Therefore, a triangle cannot have these side lengths.

4 0
3 years ago
9+10=21
hodyreva [135]

The reason why people sometimes assume that the calculation 9 + 10 = 21 is as explained below.

<h3>How to calculate in number bases?</h3>

We want to find out the reason why people say that; 9 + 10 = 21

Now, the way you have explained it is one way to look at it by utilizing number bases to play around with the figures to arrive at 21.

However, another way is to use algebra trick pattern which is;

9 can be expressed as 3 * 3

Also, 10 can be expressed as 5 * 2. Thus, we now have;

(3 * 3) + (5 * 2)

The applying properties of algebra to cross multiply gives;

(3 * 2) + (5 * 3)

= 6 + 15

= 21

Now, though your explanation arrived at 21 and mine also 21, but those are not correct mathematical methods as 9 + 10 must be equal to 19 and not 21.

Read more about Number bases at; brainly.com/question/8649831

#SPJ1

6 0
2 years ago
Can u help me from 1-3 SHOWING all the work also please
Artist 52 [7]
The first question is this: the smallest square is square A, and that is 9 units. and square E is two times that, and so on.

Square A's side length is 9 units and the area is 81.
Square E's side length is 18 and the area is 324.
Square C's side length is 27 and the area is 729.
Square B's side length is 36 and the area is 1,296.
Square D's side length is 45 and the area is 2,025
7 0
3 years ago
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