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Alik [6]
3 years ago
11

What is the value of x? X=

Mathematics
1 answer:
brilliants [131]3 years ago
5 0

Answer:

x=7

step-by-step explanation:

\frac{5}{40}  =  \frac{3}{2x + 10}

5(2x+10) =3×40

10x + 50 = 120

10x =120-50= 70

x = 70/10= 7

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Please help me!!! Brainliest
Luba_88 [7]
The lines are parallel.

In order to figure this out, let's start off by simplifying both equations as much as we can:
2y = 16 + 4x
Divide by 2
y = 2x + 8

Remember that the slope of that equation is '2' since 'm' in the equation y = mx + b represents slope.

Simplify the next equation:
6y - 30 = 12 x
6y = 12x + 30
Divide by 6:
y = 2x + 5

As you can tell, this line also has a slope of 2.
Parallel lines is defined as two lines that have the same slope. Knowing this, we can infer that these two lines are parallel.

-T.B.
7 0
3 years ago
The cost of a type of educational toy is expressed as y = 3x + 2. Find the rate of change.
NNADVOKAT [17]

Answer:

3

Step-by-step explanation:

<em>Rate of Change </em>is the same as <em>Slope</em><em>.</em><em> </em>According to the Slope-Intercept Formula, <em>y</em><em> </em><em>=</em><em> </em><em>mx</em><em> </em><em>+</em><em> </em><em>b</em><em>,</em><em> </em><em>m</em><em> </em>is the <em>Rate</em><em> </em><em>of</em><em> </em><em> </em><em>Change</em><em> </em>[<em>Slope</em>].

I am joyous to assist you anytime.

6 0
3 years ago
C
egoroff_w [7]

Answer:

Step-by-step explanation:

Answer:

$125  

Explanation:

Cost of meal                           =  $100

+ 5 % sales tax = 0.05 × 100 = +      5

+ 20 % tip         = 0.20 × 100 =  <u>     20</u>

Total cost                               =   $125

The total cost of the meal was $125.

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3 years ago
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<em>base</em><em>=</em><em>n</em>

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4 0
3 years ago
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kumpel [21]

Answer:

2.25$

Step-by-step explanation:

54 divided by 24 is 2.25$

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7 0
3 years ago
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