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2 years ago

7

If 3

1 answer:

Sliva [168]2 years ago

4 0

Answer:Given that 3 persons can weave 168 shawls in 14 days. Then, Shawls are woven in 1 day by the 3 men = 168/14 = 12. Shawls are woven in 1 day ...

Step-by-step explanation:

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Whts 2 + 2 ;-;..............

Katarina [22]

Answer:

i think it's 4

Step-by-step explanation:

2

+2

-------

4

3 0

3 years ago

(2x+2y=10)+(-x+y=1)

ruslelena [56]

$\bf \begin{cases}
2x+2y=10\\
-x+y=1
\end{cases}\\\\
-------------------------------\\\\
-x+y=1\implies y=1+x\impliedby \textit{let's plug that in the first equation}
\\\\\\
2x+2(\stackrel{y}{1+x})=10\implies 2x+2+2x=10\implies 4x=8
\\\\\\
x=\cfrac{8}{4}\implies \boxed{x=2}\impliedby \textit{let's plug that in the second one}
\\\\\\
-(\stackrel{x}{2})+y=1\implies \boxed{y=3}$

7 0

3 years ago

A parabola has a vertex at (3, -2). What is the axis of symmetry? x = _____

nikdorinn [45]

Answer:

x =3

Step-by-step explanation:

The axis of symmetry is at the vertex

The x coordinate gives the axis of symmetry

x =3

8 0

3 years ago

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Priyas family exchanged 250 dollars for 4,250 pesos. priya bought a sweater for 510 pesos how many dollars did the sweater cost

stiv31 [10]

Answer: 30

Step-by-step explanation:

4250/250= 17 ( 1 dollar = 17 pesos )

510/17= 30 dollars was the sweater

8 0

3 years ago

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The diameter of a circle is 6 centimeters. What is the circle's area?<br><br> Use 3.14 for pi

Lynna [10]

Step-by-step explanation:

diameter=

$2 \times\pi \times r = 6 \\ r = \frac{6}{2 \times 3.14} = 0.955 \\ area = \pi \times {r}^{2} = 3.14 \times {0.955}^{2} \\ = 2.87\: {cm}^{2}$

7 0

3 years ago

Read 2 more answers