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3 years ago

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10. Find the value of x. (5x+12) (3x+8)

2 answers:

xeze [42]3 years ago

8 0

Answer:20
5x add 3x is 8x 12 + 8 is 20 so 8x + 20 = 180 because it’s a straight line so 180-20 is 160 then divide 160 by 8 to work out 1 x rather than 8 x which is 20

Solnce55 [7]3 years ago

8 0

Answer:

Step-by-step explanation:

This is an isosceles triangle so the two down angles are equal

(5x+12) + (3x+8) = 180° (angle on a straight line is equal 180°)

Open brackets

5x+12 + 3x+8 = 180

8x + 20 = 180

Collecting like terms

8x = 180 - 20

8x = 160

Dividing by 8

x = 160/8

x = 20°

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two angles are supplementary of the sum is 180. the larger angle measures four degrees more than sevem times the measure of a sm

Aleksandr [31]

Answer:

22 and 158

Step-by-step explanation:

Supplementary angles add to 180. This is means there is a small and large angle. Adding together, they make 180.

"the larger angle measures four degrees more than seven times the measure of a smaller angle" is represented as 7x+4.
"x represents the measure of the smaller angle" is represented as x.

x + 7x+4 =180

8x+4=180

8x=176

x= 22

This is the measure of the smaller angle. The larger angle is 7(22)+4 = 158

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3 years ago

Shelley wants to purchase a cell phone package, which includes a free phone. The cost of the package is $0.10 per minute, for th

GarryVolchara [31]

Answer:

The function would be linear because the rate of change is constant.

Step-by-step explanation:

Given

$Base= \$89.00$

$Rate = \$0.10$ per minute

See attachment for complete question and options

First, we write the function that calculates the cost (C(t)) for t minutes.

This is calculated as:

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Rewrite as:

$C(t) = 0.10t + 89.00$

A function that has the above format is referred to as a linear function which has the general format

$f(x) = mx + b$

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From the list of given options, (a) is correct.

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bogdanovich [222]

Answer:

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Step-by-step explanation:

.................

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3 years ago

The rate of change of the volume of a snowball that is melting is proportional to the surface area of the snowball. Suppose the

Alisiya [41]

Answer:

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Leaving at the end with the next equation:

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Integrating the equation, we have:

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Replacing in the equation, we have C = 10

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3 years ago

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Travka [436]

Answer:

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Step-by-step explanation:

7 0

3 years ago

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