This is a middle school question Solve for x. 1.2(x - 4.4 ) + 7 < 16 plssss hurry

Mathematics

1 answer:

Tatiana [17]2 years ago

8 0

Answer: x < 11.9

Step-by-step explanation:

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What is the answer?

charle [14.2K]

Answer:

x = 20 but see below.

Step-by-step explanation:

Remark.

This is not well enough marked to know whether D = A or whether you have to do some algebra to find the relationship between A and D. So I will assume A = D and then I'll solve it so you have to manipulate A and D.

A = D

3x - 10 = 2x + 10 Add 10 to both sides

3x - 10 + 10 = 2x + 10 + 10 Cancel

3x = 2x + 20 Subtract 2x from both sides

3x-2x=2x-2x + 20

x = 20

A = E

If A = E then to find x you have to add 3 angles together.

E + D + 45 = 180 Add the three angles of the triangle

E + D = 180 - 45 Subtract 45 from both sides

E + D = 135 Substitute for D and E

3x - 10 + 2x + 10 = 135 Combine like terms

5x = 135 Divide by 5

x = 135 / 5

x = 27

Answer

I'd go with the first one.

5 0

2 years ago

find the value of each variable in the circle to the right. the dot represents the center of the circle.

gladu [14]

We have been given an image of a circle. We are asked to find the value of each variable.

We can see that angle b corresponds to diameter of circle. We know that the measure of an angle that is inscribed to the diameter of a circle is 90 degrees . Therefore, the value of b will be 90.

we can see that angle is an inscribed angle of arc 99 degrees. We know that measure of an inscribed angle is half the measure of inscribed arc.

$a=\frac{1}{2}\cdot 99$

$a=49.5$

Therefore, the value of a is 49.5 units.

We know that measure of all angles of a triangle is 180 degrees. The measure of 3rd angle will be half the measure of c, so we can set an equation as:

$a+b+\frac{1}{2}c=180$