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Alexxandr [17]
3 years ago
9

Evaluate the expression 5(x + 3y) if x =2 and y = -1

Mathematics
2 answers:
Alenkasestr [34]3 years ago
4 0

Answer: 7

Step-by-step explanation:

torisob [31]3 years ago
3 0

Answer:

answer 7

Step-by-step explanation:

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Find the value of x in the triangle shown below
tino4ka555 [31]

Answer:

<em>x = 32</em>

Step-by-step explanation:

This is an isosceles triangle since two sides have length 10. The angles opposite the congruent sides are congruent. There is an angle measuring 116 deg, and two angles measuring x. The sum of the measures of the angles of a triangle is 180.

x + x + 116 = 180

2x + 116 = 180

2x = 64

x = 32

5 0
3 years ago
Read 2 more answers
Can an equation with the variable on both sides be written as a two step equation
trapecia [35]

Answer:

·         Use properties of equality together to isolate variables and solve algebraic equations.

·         Use the properties of equality and the distributive property to solve equations containing parentheses, fractions, and/or decimals.

 

Introduction

 

There are some equations that you can solve in your head quickly. For example – what is the value of y in the equation 2y = 6? Chances are you didn’t need to get out a pencil and paper to calculate that y = 3. You only needed to do one thing to get the answer, divide 6 by 2.

 

Other equations are more complicated. Solving  without writing anything down is difficult! That’s because this equation contains not just a variable but also fractions and terms inside parentheses. This is a multi-step equation, one that takes several steps to solve. Although multi-step equations take more time and more operations, they can still be simplified and solved by applying basic algebraic rules.

 

Using Properties of Equalities

 

Remember that you can think of an equation as a balance scale, with the goal being to rewrite the equation so that it is easier to solve but still balanced. The addition property of equality and the multiplication property of equality explain how you can keep the scale, or the equation, balanced. Whenever you perform an operation to one side of the equation, if you perform the same exact operation to the other side, you’ll keep both sides of the equation equal.

 

If the equation is in the form, ax + b = c, where x is the variable, you can solve the equation as before. First “undo” the addition and subtraction, and then “undo” the multiplication and division.

 

 

Step-by-step explanation:

3 0
3 years ago
Compute the range for the set of data. <br>10, 10, 10, 18, 29, 29, 29 ​
nekit [7.7K]

Step-by-step explanation:

Range 29 - 10 = 19

the difference

4 0
3 years ago
Combine like terms.<br> (-22 - 3) + (40 + 6y) + (7 + 3c)
Feliz [49]

Answer:

Step-by-step explanation:

Let's simplify step-by-step.

−22−3+40+6y+7+3c

=−22+−3+40+6y+7+3c

Combine Like Terms:

=−22+−3+40+6y+7+3c

=(3c)+(6y)+(−22+−3+40+7)

=3c+6y+22

Answer:

=3c+6y+22

5 0
3 years ago
Round 3.962 to the nearest tenths
gayaneshka [121]
It would be 4.0



please can i have a brailiest

3 0
3 years ago
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