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Mademuasel [1]
3 years ago
7

3(2x + 7) - 2 (x + 5)

Mathematics
2 answers:
aleksley [76]3 years ago
6 0
6x+21-2(x+5)
6x+21-2x-10
4x+21-10
Answer:4x+11
olga55 [171]3 years ago
5 0

Answer:

Step-by-step explanation:

3(2x + 7) - 2 (x + 5)

need to distibute

5x+10-2x+3

combine like terms

3x+13

divide

x=4.3

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Which is a property of an angle?
Margaret [11]

Answer:

I believe that it is the last answer. have a great day!

3 0
4 years ago
Bella and Heather put some money into their money boxes every week. The amount of money (y), in dollars, in their money boxes af
Hatshy [7]

Answer:

\boxed{ \text{B. 10 weeks, \$310 }}\\

Step-by-step explanation:

We have two conditions:

\begin{array}{lrcll}(1) & y & = & 25x + 60 & \\(2) & y & = & 30x + 10 & \\ & 25x + 60 & = & 30 x + 10 & \text {Set (1) = (2)} \\ & 50 & = & 5x & \text{Subtracted 25x from each side} \\& x & = & 10 &\text{Divided each side by 5} \\\end{array}\\$ $\\\boxed{ \textbf{The number of weeks is }x = 10}\\

   

    Bella: y = 25x + 60 = 25(10) + 60 = 250 + 60 = 310  

Heather: y = 30x + 10  = 30(10) +  10 = 300 + 10  = 310

7 0
3 years ago
How do u show that these 2 lines are parallel <br> L is y=3x-2<br> L*2 is 3y-9x+5=0
DIA [1.3K]

Answer:

If two lines are parallel, then they have the same gradient.

Step-by-step explanation:

L is y=3x-2

L*2 is 3y-9x+5=0

The gradient for the first equation is 3

We need to rearrange the second equation and see if it has the same gradient as the first equation.

L*2 is 3y-9x+5=0

3y = 9x - 5

L*2 y = 3x - 5/3

As you can see, once you rearrange and simplify the equation, the second line has the same gradient as the first equation.

So that means these two lines are parallel

4 0
4 years ago
What remainder is represented by the synthetic division below?
Goryan [66]

The remainder represented by synthetic division is -5.

<h3>What is synthetic division?</h3>

Synthetic division can be defined as a simplified way of dividing a polynomial with another polynomial equation of degree 1.

Given

A vertical line and a horizontal line combine to make an L shape.

There are two rows of entries within the shape.

Row 1 has entries 2, 10, 1, 5.

Row 2 has entries blank, -10, 0, -5.

Entry -5 is on the outside to the left of the shape. The entry represents the zero of the divisor. This entry to the variable (assume the variable is x) is;

x + 5 = 0

x = -5

Hence, the divisor of the synthetic division is -5.

To know more about synthetic division click the link given below.

brainly.com/question/6789595

#SPJ1

6 0
2 years ago
Which statement is true about the following pair of rectangles.​
Natali5045456 [20]

they are similar because 7/5 = 21/15

7/5 = 1.4

21/15 = 1.4

7 0
4 years ago
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