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Aleks [24]
3 years ago
14

Let the cost of a pen be dollars. Write an expression for the total cost of four pens and seven mechanical pencils in terms of .

Mathematics
1 answer:
lions [1.4K]3 years ago
7 0

Answer:

4x +7 = ?  

Step-by-step explanation:

It was easy except you need more info to solve the equation

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What is X? I literally forgot how to do this lol
sdas [7]

Step-by-step explanation:

A straight line has an angle of 180

132+(2x+3)=180

2x+3=48

2x=45

x=45/2

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4 0
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What is the side length , in inches, of the pet shop sign ?
rusak2 [61]
Could i see a picture please
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3 years ago
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In a pair of complementary angles, the larger angle is six more than three times the smaller angle. the measures of the angles a
harina [27]
2 angles are Complementary, if the sum of their measures = 90°.

Let the 2 angles be A and B, and let their measures be m(A)=a, m(B)=b.

Let A be the larger angle.



"the larger angle is six more than three times the smaller angle."

can be 'translated' into algebra as:   a = 6 + 3b

Also, since A and B are complementary, we have a+b=90°.


substitute a=6+3b in the second equation:

a+b=90°

(6°+3b+b)=90°


4b=90°-6°

b=84°/4=21°



Then, a = 90°-21°=69°


Answer: a= 69°, b=21°
7 0
3 years ago
Find the midpoint P(16,7) and Q(12, -3) With work.
hichkok12 [17]

Answer:

(14, 2 )

Step-by-step explanation:

Use the midpoint formula

[0.5(x₁ + x₂), 0.5(y₁ + y₂) ]

with (x₁, y₁ ) = (16, 7) and (x₂, y₂ ) = (12, - 3)

midpoint = [0.5(16 + 12), 0.5(7 - 3) ] = [0.5(28), 0.5(4) ] = (14, 2 )

8 0
3 years ago
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11-1/2y=3+6x solve for y
juin [17]
11-\frac{1}{2} y=3+6x
Taking y to the other side;
11-3-6x=\frac{1}{2} y
8-6x=\frac{1}{2}y
Multiply each side by 2
16-12x=y
y=16-12x
5 0
3 years ago
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