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GaryK [48]
3 years ago
12

Which expression best represents the difference between triple a number and double a number? A) 3x - 2x Eliminate B) 2x - 3x C)

x3 - x2 D) x2 - x3
Mathematics
2 answers:
Snezhnost [94]3 years ago
7 0

Answer:

3x-2x (^:

Step-by-step explanation:

earnstyle [38]3 years ago
4 0

Answer:

The correct answer is A) 3x - 2x

Step-by-step explanation:

When finding a difference, always list the first expression first. Since it mentions triple a number, the 3 would have to come first.

Also, since it is tripling a number, we want to multiply it by 3, not multiply it by itself as options C and D do.

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the height of a house having three rooms of the dimensional 9 feet into 12 feet 14 feet into 16 feet and 12 feet into 14 feet re
Semmy [17]

Answer:

Amount required = 2,217,600

Step-by-step explanation:

Dimensions of the rooms are as follows;

Room 1; 9 feet × 12 feet

Room 2; 14 ft × 16 ft

Room 3; 12 ft × 14 ft

Perimeter of rooms;

P1 = 2(9 + 12) = 42 ft

P2 = 2(14 + 16) = 60 ft

P3 = 2(12 + 14) = 52 ft

Total perimeter; P = 42 + 60 + 52 = 154 ft

Height is 90 ft.

Thus, total area is;

A = 154 × 90

A = 13860 ft²

Rate of painting is 160 per Sq.ft.

Thus amount to paint entire area = 160 × 13860 = 2217600

4 0
3 years ago
What is the value of x in the isosceles trapezoid below?
Yuki888 [10]
C. 10

14x+14x+(3x+10)+(3x+10)=
34x+20=360=
X=10
6 0
3 years ago
Read 2 more answers
Students receive a 15% discount at the local movie theater. If a student pays the discounted price of $7.65, what is the origina
Over [174]

Answer:

\large \boxed{\$9.00}

Step-by-step explanation:

Let p = the original price of the ticket

\begin{array}{rcl}\text{ Price before discount - discount} & = & \text{sale price}\\p - 0.15p & = & 7.65\\0.85p & = & 7.65\\p & = & \dfrac{7.65 }{0.85}\\\\& = & \mathbf{9.00}\\\end{array}\\\text{The original price of the ticket was $\large \boxed{\mathbf{\$9.00}}$}

Check:

\begin{array}{rcl}9.00 - 0.15(9.00) & = & 7.65\\9.00 - 1.35 & = & 7.65\\7.65 & = & 7.65\\\end{array}

OK.

7 0
3 years ago
Evaluate the expression when x=-6.<br> x² + 5x-5
Rus_ich [418]

Answer:

1

Step-by-step explanation:

x² + 5x-5

Let x = -6

(-6)^2 + 5(-6) -5

36 -30 -5

6-5

1

6 0
3 years ago
Angle UZT is congruent to angle?
Ymorist [56]

Answer:

In order for me to help you I need to either see a photo or know more about the other angle.

Step-by-step explanation:

3 0
3 years ago
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