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3 years ago

Complete the equation: 77x – 49 = 7 ( _____ )

Mathematics

1 answer:

Bingel [31]3 years ago

4 0

I’m pretty sure it’s B.11x-7

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An international company has 27,8000 employees in one country. If this represents 32.7% of the company's employees, how many emp

rjkz [21]

Answer:

850152.29052

Step-by-step explanation:

278000 rep 32.7%

278000=32.7%, 100% is the total

100%×278000= 278000000÷32.7=850,152.29052

6 0

3 years ago

Let y=f(x)=(3x+7)/(x-2) <br> find a rule for f^-1

Murrr4er [49]

Answer:

$f^{-1}(x)=\frac{2x+7}{x-3}$ .

Step-by-step explanation:

The given function is $f(x)=\frac{3x+7}{x-2},\:x\ne2$ .

We want to find a rule for $f^{-1}(x)$ .

Let $y=\frac{3x+7}{x-2}$ .

Interchange x and y.

$x=\frac{3y+7}{y-2}$ .

Solve for y.

$x(y-2)=3y+7$ .

Expand

$xy-2x=3y+7$ .

Group y-terms

$xy-3y=7+2x$ .

Factor

$(x-3)y=7+2x$ .

$y=\frac{2x+7}{x-3}$ .

$\therefore f^{-1}(x)=\frac{2x+7}{x-3},\:x\ne3$ .

8 0

3 years ago

ABCD is an isosceles trapezoid with legs AB & CD and base BC if the length of AB is 7Y-4 the length of BC is for 4y-6 and th

vichka [17]

Answer:

The value of y is 14.

Step-by-step explanation:

Given,

Length of AB = $7y-4$

Length of BC = $4y-6$

Length of CD = $8y-18$

Since ABCD is an isosceles trapezoid then according to property of trapezoid which is given below;

"In any isosceles trapezoid, two opposite sides (the bases) are parallel, and the two other sides (the legs) are of equal length."

So Length of AB = Length of CD

$7y-4 = 8y-18\\8y-7y=-4+18\\y= 14$

Hence the value of y is 14.

3 0

3 years ago

Helppppppppp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Allushta [10]

9514 1404 393

Answer:

180°

Step-by-step explanation:

A parallelogram has rotational symmetry of degree 2. That is, it maps to itself when rotated through angles that are multiples of 360°/2 = 180°.

The figure should be rotated 180 degrees.

5 0

3 years ago

Pls answer this now pls i beg u i need to past it on school :) thank you so much

ELEN [110]

Answer: 13.85kg Hope this helps, please consider making me Brainliest.

Step-by-step explanation:

Let's add! 7 1/4 + 6 3/5 = 7.25 + 6.6

7 + 6 + .25 + .6 = 13 + .85 =

13.85

8 0

2 years ago

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