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Natalija [7]
3 years ago
9

Six times the sum of a number and twelve is forty.

Mathematics
2 answers:
Nitella [24]3 years ago
5 0
The answer is C Hope this helps!!
Dmitry_Shevchenko [17]3 years ago
3 0
The answer is B i think.......
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Uh help it has to e same answers for all liek yk?
Finger [1]

Answer:

x = 8/3

Step-by-step explanation:

6x + 4 = 3x + 12

3x + 4 = 12

3x = 8

x = 8/3

5 0
3 years ago
A new neighborhood activity complex is being built in Erie. The perimeter of the rectangular playing field is 448 yards. The len
BARSIC [14]

Answer:

Length = 178 yards and Breadth = 46 yards

Step-by-step explanation:

The perimeter of the rectangular field is 448 yards

Let the width is b and the length of the field is (4b-6) yards

We need to find the dimensions of the playing field. We know that the perimeter of a rectangle is given by :

P = 2(l+b)

ATQ,

[2((4b-6)+b)] = 448

2(5b-6) = 448

5b-6 = 224

5b = 230

b = 46 yards

Length = (4b-6)

= 4(46) - 6

= 178 yards

Hence, the length and breadth of the field is 178 yards and 46 yards respectively.

5 0
3 years ago
Given that x^2 - y^2 = 45 and x + y = 9, find the values of x and y.
eimsori [14]

Answer:

x = 7

y = 2

Step-by-step explanation:

x² - y² = 45    

(x+y) (x-y) = 45

x + y = 9   (known)

9 x  (x-y) = 45

x - y = 5

y = x-5  

x + (x - 5) = 9  (substitute)

2x = 14

x = 7

y = 2

8 0
3 years ago
The function f(x) = –x2 – 4x + 5 is shown on the graph. On a coordinate plane, a parabola opens down. It goes through (negative
olga2289 [7]

Answer:

A≈1075.21

d Diameter

37

d

r

r

r

d

d

C

A

Using the formulas

A=

π

r

2

d=

2

r

Solving forA

A=

1

4

π

d

2

=

1

4

π

37

2

≈

1075.21009

Step-by-step explanation:

4 0
3 years ago
If the triangles are congruent, then X=?
Akimi4 [234]

If the triangles are congruent, then x = 3.

6 0
3 years ago
Read 2 more answers
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