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hjlf
3 years ago
10

Pls if anyone knows the answer with work included/steps that will be greatly appreciated :)

Mathematics
2 answers:
Leni [432]3 years ago
8 0

Step-by-step explanation:

3. The length of the rectangle is 3x and width is x+5

Now,

Area of rectangle=l×b

=3x(x+5)

=3x^2+15x(option d.)

4. 2/3x-4=20

2x/3=20+4

2x/3=24

2x=24×3

2x=72

x=72/2

x=36(option d.)

irina [24]3 years ago
6 0

Answer:

3.  3x^2 + 15x

4.  x=36

Step-by-step explanation:

The area of a rectangle is

A = l*w

A = (3x)*(x+5)

Distribute

3x^2 + 15x

2/3x - 4 = 20

Add 4 to each side

2/3x -4+4 = 20+4

2/3x = 24

Multiply each side by 3/2

2/3*3/2 =24*3/2

x = 12*3

x=36

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irina1246 [14]

There is no picture but the fomula for volume is lengthxwidthxheight for a square or rectangle

3 0
3 years ago
The coordinates of the point 3/10 of the way from A to B are
nikitadnepr [17]

Answer:

(0, -\frac{32}{13})

Step-by-step explanation:

If a point (x, y) that divides a line segment having extreme ends (x_1,y_1) and (x_2,y_2) into the ratio of m : n,

x = \frac{mx_2+nx_1}{m+n}

and y = \frac{my_2+ny_1}{m+n}

From the picture attached,

Extreme ends of a segment are A(-3, -5) and B(10, 6).

Let a point (x, y) divides this segment divides this segment in the ratio of 3 : 10,

x = \frac{3\times 10+10\times (-3)}{3+10}

  = 0

y = \frac{3(6)+10(-5)}{3+10}

  = \frac{18-50}{13}

  = -\frac{32}{13}

Therefore, (0,-\frac{32}{13}) is a point which divides AB in the ratio of 3 : 10.

8 0
3 years ago
PLZ HELP I NEED TO SUMMIT THIS
weeeeeb [17]
Help with what, unless there is a picture, my phone is glitchy and i cant see pics for sum reason
4 0
3 years ago
47 in = ? ft ? in<br><br>564 ft 0 in<br><br>3 ft 9 in<br><br>4 ft 0 in<br><br>3 ft 11 in
Elena-2011 [213]

Answer:

3 ft 9 in

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How to do this question?
Westkost [7]

OK so each block is 3cm tall and 3.5cm wide (because 2 are 7cm wide)

so to measure the perimeter count all the side values for example:

the 5 squares at the bottom which measure 3.5cm each adds up to a total of 17.5cm then if you add the top 2 flat sides that's another 2, 3.5cm which adds up to 7cm. 17.5cm + 7cm = 24.5cm then their are 3 walls on each side measuring 3cm each so 3cm * 6 = 18


24.5cm + 18cm = 42.5cm (I think this is correct)

7 0
3 years ago
Read 2 more answers
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