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3 years ago

What is 10x+5-(-2x+3) in simplest form

Mathematics

2 answers:

balandron [24]3 years ago

7 0

Answer:

12x-2

Step-by-step explanation:

10x+5-(-2x+3)

10x+5+2x-3

12x-2

dsp733 years ago

7 0

10x+5+2x+3
12x+8
We just have to make - - to plus and then add the x ones and the other ones. Have a great day!

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ASAP pls help me with this question

otez555 [7]

Answer:

120

Step-by-step explanation:

1. Find the value of x.

The angles in a triangle have a sum of 180 degrees. To find x, add up the other two inside angles and subtract the sum from 180.

87 + 33 = 120

180 - 120 = 60 degrees.

x = 60

2. Angle y is supplementary to angle x, meaning that the sum of the two angles equals 180.

180 - 60 = 120

y = 120

4 0

3 years ago

a model house has a scale of 1 in :2 ft. if the real house is 26 ft wide then how wide is the model house

MArishka [77]

Divide the width by 2, as that is your scale.
26 / 2 = 13
The house would be 13 inches long.

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4 years ago

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vitfil [10]

Answer:

All real number

Step-by-step explanation:

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3 years ago

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Mekhanik [1.2K]

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3 years ago

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Jenna spends $15.04 at the store on notebooks and folders for school. Notebooks cost $4.85 each, and folders cost $0.89 each. Sh

cluponka [151]

Answer:

$\boxed{\text{2 notebooks and 6 folders}}$

Step-by-step explanation:

Let n = number of notebooks

and f = number of fodders

You have a system of two equations:

$\begin{cases}(1)& 4.85n + 0.89f = 15.04\\(2) & n+ f = 8\end{cases}\\\\$

$\begin{array}{lrcll}(3) & f & = & 8-n &\text{Subtracted n from each side of (2)}\\& 4.85n+0.89(8-n) & = & 15.04 &\text{Substituted (3) into (1)}\\& 4.85n+7.12-0.89n & = & 15.04 &\text{Distributed 0.89}\\& 3.96n+7.12 & = & 15.04 &\text{Combined like terms} \\& 3.96n & = & 7.92 & \text{Subtracted 7.12 from each side} \\(4) & n & = & 2 & \text{Divided each side by 3.96}\\& 2+ f & = & 8 & \text{Substituted (4) into (2)}\\& f & = & 6 &\text{Subtracted 2 from each side} \\\end{array}$

Jenna bought $\boxed{\textbf{two notebooks and six folders} }$ .

Check:

$\begin{array}{rclcrcl}4.85\times2+0.89\times6 & =& 15.04 & \qquad &2+6&=&8\\9.70+5.34 & = & 15.04 & \qquad &8&=&8\\15.04& = & 15.04 & & & & \\\end{array}$

OK.

4 0

3 years ago