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Natasha_Volkova [10]

3 years ago

7

Seven times a sum of a number and 1 is 63

2 answers:

kompoz [17]3 years ago

7 0

7(x+1)=63
7 times a number(x) +1

valentinak56 [21]3 years ago

4 0

7(x + 1) = 63
That is the equations of the words above. The simplified version is:

7(x + 1) = 63
7x + 7 = 63 (multiplied 7 by x and the 7 by 1)
- 7 -7
-----------------
7x = 63
---- ---- (divide by seven to leave the variable, in this case the letter x, alone)
7 7
x = 9 (63/7 = 9)

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A line passes through the point (–6, –2), and its y-intercept is (0, 1). What is the equation of the line that is perpendicular

Mama L [17]

The slope of first line is m 1= ( 1 - 0 ) / ( - 2 - ( - 6 ) );
m = 1 / 4 ;
Because the second line is perpendicular to the first line, m2 * m1 = - 1 ;
m2 * ( 1 / 4 ) = -1;
m2 = - 4 ;
The equation of the second line is : y - 3 = ( - 4 )( x - 2 );
y - 3 = -4x + 8 ;
y = -4x + 11.

5 0

3 years ago

Helppppp meehhehhhhhhhh

kiruha [24]

ANSWER

B. 10

EXPLANATION

We need to find the value of x first.

It was given that the perimeter of triangle XYZ is 24.

This means that:

XY+YZ+XZ=24

we substitute the expression in terms of x to get;

$(5x - 1) + (13 - x) = 24$

This implies that

$5x - x = 24 - 13 + 1$

$4x = 12$

Divide both sides by 4 to get;

$x = 3$

|WY|=|ZX|=13-3=10

6 0

3 years ago

Read 2 more answers

Plsss help I’ll give u brainlest and 5 or 10 points pls

Svetach [21]

Answer:

No

Step-by-step explanation:

That is not enough,that is why it is a no

PLs mark brainly

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8 0

3 years ago

The area of parallelogram WXYZ is approximately 45 square units.

neonofarm [45]

Answer:

Option (4)

Step-by-step explanation:

Area of a triangle = $\frac{1}{2} (a.b.\text{Sin}\theta)$

Where a and b are the sides of a triangle and θ is the angle between the sides a and b.

By this rule,

Area of ΔWZY = $\frac{1}{2}(\text{WZ}).(\text{YZ}).\text{Sin}(115)$

45 = $\frac{1}{2}(\text{YZ}).(10).\text{Sin}(115)$

9 = (YZ).Sin(115)°

YZ = $\frac{9}{\text{Sin}(115)}$

YZ = 9.93

Perimeter of parallelogram WXYZ = WX + XY + YZ + WZ

= 9.93 + 10 + 9.93 + 10

= 39.86

≈ 40 units

Therefore, perimeter of the parallelogram is 40 units.

Option (4) is the answer.

4 0

3 years ago

The length of the triangle for the pool table is the twice the sum of 5 and a number. If the rack is

gayaneshka [121]

Answer:

30 + 6x inches

Step-by-step explanation:

Let the required number be x

If the length of the triangle for the pool table is the twice the sum of 5 and a number

L = 2(5+x)

L = 10+2x

Since the triangle is quadilateral, this means that all sides are equal

Perimeter = 3L

Perimeter = 3(10+2x)

Perimeter = 30+6x

Hence the perimeter, in inches, of the triangle is 30 + 6x inches

7 0

3 years ago