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3 years ago

If c = 30 and d = 8, then 2c + 4d = A) 512 B) 278 C) 136 D) 92

Mathematics

2 answers:

Andrej [43]3 years ago

3 0

2c + 4d = 2*30 + 4*8 = 60 + 32 = 92

D) 92

cupoosta [38]3 years ago

3 0

Answer:

The answer to this problem is D: 92

Step-by-step explanation:

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Help!

aniked [119]

A: x intercept is -2 and y intercept is -3

6 0

3 years ago

Six Flags Amusement Park has found that 3/5 of its customers ride the Colossus roller coaster. Of these, 1/4 ride it again. What

QveST [7]

Answer:

The answer is B. 3/20

Step-by-step explanation:

That will be 1/4 of 3/5

3/5 × 1/4

3/20

3 0

3 years ago

Circle A has a diameter of approximately 20 inches and an area of approximately 300 in2.

Katena32 [7]

Answer:

4. About 2,700 in2

Step-by-step explanation:

The area of a circle ( $A$ ), measured in square inches, is directly proportional to the square of its diameter ( $d$ ), measured in inches. That is:

$A \propto d^{2}$

$A = k\cdot d^{2}$

Where $k$ is the constant of proportionality, dimensionless.

In consequence, the following relationship between circles A and B is obtained:

$\frac{A_{B}}{A_{A}} = \frac{d_{B}^{2}}{d_{A}^{2}}$

The area of the circle B is now cleared:

$A_{B} =\left(\frac{d_{B}}{d_{A}} \right)^{2}\cdot A_{A}$

Given that $d_{A} = 20\,in$ , $d_{B} = 60\,in$ and $A_{A} = 300\,in^{2}$ , then:

$A_{B} = \left(\frac{60\,in}{20\,in} \right)^{2}\cdot (300\,in^{2})$

$A_{B} = 2700\,in^{2}$

Therefore, the correct answer is 4.

7 0

3 years ago

What is the solution to x ? 7/3x + 1/3x = 3x + 6/3 + 5/3x

nignag [31]

7/3x+1/3x=3x+6/3+5/3x
8/3x-5/3x=3x+6/3
3/3x=3x+6/3
x=3x+6/3
x-3x=6/3
-2x=2
-x=2/2
-x=1
x=-1

7 0

3 years ago

Someone solve this question!!!??Thank you

Naddik [55]

Combing like terms you have 0.25k - k = -0.75k

and 1.5 - 3.5 = -2.0

The answer would be -0.75k - 2.0

7 0

3 years ago

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