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Montano1993 [528]

3 years ago

6

Help me please I need itt!!!!!!!

2 answers:

Firlakuza [10]3 years ago

8 0

4. This is simple the answer would be C. 60 because if you divide 9 by 1.50 you would get 6, so then you would need to multiply 6 by the number of erasers which is 10. So, 6 times 10 is 60.

5. This answer would be A. 1700 because (17 x 4) is 68 and 68 times 25 is 1700.

Hoped this helped!

Kruka [31]3 years ago

3 0

The answer is A because you need to multiply 17*4 frist then times it by 25.

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The length of one side of a rhombus is 20 m.Find its perimeter.

AlekseyPX

Answer:

80 m

Step-by-step explanation:

Given :-

One side of rhombus = 20 m.

[ as one of the property of rhombus = all sides are equal ]

So, perimeter of rhombus = sum of all sides

= 20+20+20+20 = 80 m

...........................OR............................

Perimeter of rhombus = 4 × side

= 4 × 20 = 80 m

Hence, the perimeter of the rhombus is 80m.

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3 years ago

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What is the area of the regular pentagon below

nordsb [41]

Answer:

A

Step-by-step explanation:

By definition, all sides of a regular polygon are equal in length. If you know the length of one of the sides, the area is given by the formula:

$A=\dfrac{s^2\cdot n}{4\tan \frac{180^{\circ}}{n}},$

where s is the side length, n is the number of sides.

In your case, s=20 ft, n=5,so

$A=\dfrac{20^2\cdot 5}{4\tan \frac{180^{\circ}}{5}}=\dfrac{400\cdot 5}{4\tan 36^{\circ}}=\dfrac{500}{0.73}\approx 688.2\ ft^2$

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3 years ago

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Solve and check 0.18(5x – 4) = 0.5x + 0.8

stiv31 [10]

Answer:

3.8

Step-by-step explanation:

0.18(5x – 4) = 0.5x + 0.8
0.9x - 0.72= 0.5x +0.8
0.9x- 0.5x= 0.8+0.72
0.4x= 1.52
x= 1.52/0.4
x= 3.8

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0.18(5*3.8 - 4)= 0.5*3.8 + 0.8
0.18*15= 1.9 + 0.8
2.7=2.7

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3 years ago

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Please help!!<br> Answer the question below

zloy xaker [14]

Answer:

There is no question here.

Step-by-step explanation:

5 0

3 years ago

Suppose r varies directly with the square of m and inversely as s. If r= 12 when m = 6 and s=4, find r when m = 4 and s 10

zalisa [80]

Answer:

$r=\frac{32}{15}$

Step-by-step explanation:

If r varies directly with the square of m and inversely as s,

then $r=\frac{km^2}{s}$ where k is some constant

Given r = 12 when m = 6 and s = 4:

$r=\frac{km^2}{s}$

⇒ $12=\frac{k6^2}{4}$

⇒ $\frac{12\times4}{6^2} =k$

⇒ k = $\frac{4}{3}$

Therefore, substituting the found value of k into the original equation: $r=\frac{4m^2}{3s}$

Find r when m = 4 and s = 10:

$r=\frac{4m^2}{3s}$

⇒ $r=\frac{4\times4^2}{3\times10}$

⇒ $r=\frac{32}{15}$

6 0

3 years ago