Please help me now please

Mathematics

1 answer:

Oduvanchick [21]4 years ago

7 0

Answer:

A = 30 i hope this helps! :)

Step-by-step explanation:

a straight line is 180 degrees

we are given two angle measurements

measure of angle A = 6x - 18

measure of angle B = 14x + 38

so now we need to combine the equations together and have them equal 180 degrees

6x - 18 + 14x + 38 = 180

combine like terms

first the x values 20x - 18 + 38 = 180

now the regular numbers 20x + 20 = 180

subtract 20 from both sides of the equation 20x = 160

then divide both sides by 20 x = 8

now that we have the value of x, we can plug it into the equation for angle A

lets see the equation for angle A again

A = 6x - 18

plug in the x value to 6x

A = 48 - 18

combine like terms

A = 30

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Which real-world story is represented by the addition problem (–2 1/2) + (–3 1/4) = –5 3/4?

allochka39001 [22]

Answer:

Step-by-step explanation:

A is the correct answer because the equation matches option A.

(-2 1/2) + (-3 1/4)

The minus sign in -2 1/2 shows that the submarine descended and then descended again with the addition sign. Though the addition sign can mean that it ascended its incorrect.

With the equation in hand, we can prove that option A is correct.

If the submarine descended 2 1/2 miles then here must be a minus sign next to the 2 1/2. But if it ascended then there would've been an addition sign to show that it ascended. The other value - 3 1/4 also shows that it ascended with the help of the addition sign.