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3 years ago

Two-Step Equations

2 answers:

4 0

12x - 1 = 29

Add 1 to both sides of the equals sign

12x - 1 + 1 = 29 + 1
12x = 30

Now, divide both sides of the equal sign by 12 to isolate the x.

12x / 12 = 30 / 12
x = 2.5

Therefore, the solution is x = 2.5.

Hope this helps!!

RoseWind [281]3 years ago

3 0

Answer:

2.5

Step-by-step explanation:

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I need help on this....7th grade math!!

Basile [38]

Answer:

The answer is no.

Step-by-step explanation:

All you have to do is plot the points and see if they match up.

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2 years ago

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Jenny's parents deposit $15,000 for her college tuition in an account with a 3% simple interest rate. How long will it take to e

Eddi Din [679]

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4 years ago

Ssignment

AnnZ [28]

Part a: The value of x is 33°

Part b: The measure of each base angle is 69°

Explanation:

It is given that the vertex angle of an isosceles triangle measures 42°.

The base angle in the triangle has a measure of $(2x+3)^{\circ}$

Part a: To determine the value of x

Since, in an isosceles triangle the base angles are always equal.

Thus, the three angles in an isosceles triangle add up to 180°

Hence, we have,

$42+2x+3+2x+3=180$

$42+4x+6=180$

$4x+48=180$

$4x=132$

$x=33^{\circ}$

Thus, the value of x is 33°

Part b: To find the measure of each base angle.

Base angle = $(2 x+3)^{\circ}$

Substituting $x=33^{\circ}$ , we get,

$Base \ angle = (2(33)+3)^{\circ}$

$=(66+3)^{\circ}$

$=69^{\circ}$

Thus, the measure of each base angle is 69°

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4 years ago

Which of the following best describes the expression 6(x + 10)? (1 point)

blondinia [14]

Answer:

A factor can be a number, variable, term, or a longer expression. For example ... In the expression 2x+4y− 9 , the term 9 is a constant. Like Terms: Terms that contain the same variables such as 2m , 6m or 3xy and 7xy .

Step-by-step explanation:

Factor, in mathematics, a number or algebraic expression that divides another ... For example, 3 and 6 are factors of 12 because 12 ÷ 3 = 4 exactly and 12 ÷ 6 = 2 exactly. The other factors of 12 are 1, 2, 4, and 12 .

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3 years ago

The averages of the squared differences between the data values and the mean is known as

GrogVix [38]

Variance is the answer.

Explanation:

The variance is the average of the squared differences from the mean. To figure out the variance, first calculate the difference between each point and the mean; then, square and average the results.

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3 years ago