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Liula [17]
3 years ago
9

PLEASSSSSE HELPPPPPP This is my third post of this! I really need help

Mathematics
1 answer:
Nesterboy [21]3 years ago
6 0
Answer: x=25

solution:

we know that
The triangle external angle theorem states that: An exterior angle of a triangle is equal to the sum of the opposite interior angles

In this problem:
m∠9=m∠7+m∠8

substitute the given values:
(6x-20)°=30°+4x°

now solve for x:
6x-4x=30+20
2x=50
x=25 which is the final answer:)
You might be interested in
3.5.PS-26
notsponge [240]

Using a linear function, it is found that the algebraic expression that shows the amount Ms. Jackson will pay for the small truck for the week is:

  • y(m) = 0.6m + 340

<h3>What is a linear function?</h3>
  • A linear function is modeled by:

y = ax + b

In which:

  • a is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0.

In this problem:

  • He pays an amount per mile, plus a flat weekly fee.
  • Researching the problem on the internet, it is found that the weekly fee for the small truck is of $340, hence b = 340.
  • For each mile, he pays $0.6, hence the slope is of a = 0.6.

Then, the expression is:

y(m) = 0.6m + 340

To learn more about linear function, you can take a look at brainly.com/question/25823744

8 0
2 years ago
The total cost is y = 150 + 55x. Which Statement represents the meaning part of the function
kaheart [24]

Answer:

You started with 150.

5 0
3 years ago
(a) Work out the reciprocal of 1.25
Oxana [17]

Answer:

0.8 OR \frac{4}{5}

Step-by-step explanation:

The reciprocal of any number is the number that it multiplies by to equal 1.

The reciprocal can be found by simply converting the number into a fraction and then 'flipping' the fraction as any number multiplied by its reciprocal is 1.

E.g.

No. X/Y * Y/X (its reciprocal) = 1

\frac{x}{y} *\frac{y}{x} =\frac{xy}{xy} =1

So, to find the reciprocal of 1.25,we should first convert 1.25 to a fraction.

1.25 = 125/100

\frac{125/25}{100/25}=\frac{5}{4}

Now we just flip 5/4 to get our reciprocal:

\frac{4}{5} = 0.8

Test: 0.8 * 1.25 = 1

The reciprocal of 1.25 (\frac{5}{4}) is 0.8 (\frac{4}{5}).

Hope this helped!

8 0
2 years ago
HELPP FOR BRAAINLISTT
Phoenix [80]

Answer:

The slope is approximately 2 and the y-intercept is approximately 3.

Step-by-step explanation:

I don't know if this is right but I hope it is have an amazing day.

5 0
2 years ago
Read 2 more answers
You buy 3.18 pounds of peaches​, 1.45 pounds of apples​, and 2.06 pounds of pears. What is your total​ bill?
Mrrafil [7]

Answer:

6.69 is the total amount of pounds

6 0
3 years ago
Read 2 more answers
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