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almond37 [142]
3 years ago
5

Solve for x ax+ b= r​

Mathematics
1 answer:
Alexxx [7]3 years ago
7 0

Answer:

x = \dfrac{r - b}{a}

Step-by-step explanation:

ax + b = r

Subtract b from both sides.

ax = r - b

Divide both sides by a.

x = \dfrac{r - b}{a}

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Am I correct? ( top question)
EastWind [94]

Answer:

72

Step-by-step explanation:

<1 and <2 are not equal to each other

Let the angle  directly above angle 2 (on the right side of the line) be angle 3

<1 and <3 are corresponding angle, which means they are equal

<2 and <3 are supplementary angles since the form a line

<2 + <3 = 180

We know <1 = <3

<1 + <3 = 180

We are given <1 = 2x+12  and <2 = 3x+18

2x+12 + 3x+18 = 180

Combine like terms

5x+30 = 180

Subtract 30 from each side

5x+30-30 = 180-30

5x= 150

Divide each side by 5

5x/5 = 150/5

x=30

<1 = 2x+12

Substitute 30 in for x to find angle 1

   = 2*30 +12

   =60+12

  = 72

6 0
3 years ago
Explain how showing fractions with models and a number line are alike and different?
Otrada [13]
Showing fractions can be expressed in model and number line.
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Using a number line, the line starts from 0 to the number of the denominator. You put a marker to the number that is the same as the numerator.

Both model and number line use the value of the numerator and denominator. What makes them different is how they are presented. Model can easily be understood compared to number line.
5 0
2 years ago
if your cell phone bill was $67.82 and there's a 7.5% late fee how much will you pay for your phone bill
kotegsom [21]
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8 0
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Can yall help, whoever answers correctly will get brainllest!
melamori03 [73]

Answer:

A,C,D

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation

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