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Sliva [168]
4 years ago
13

Simplify the expression. 7n + 3(4n-3)-2

Mathematics
2 answers:
Dmitriy789 [7]4 years ago
8 0

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{19n - 11}}}}}

Step-by-step explanation:

\sf{7n + 3(4n - 3) - 2}

Distribute 3 through the parentheses

\longrightarrow{ \sf{7n + 12n - 9 - 2}}

Collect like terms

\longrightarrow{ \sf{19n - 9 - 2}}

The negative integers are always added but posses the negative ( - ) sign

\longrightarrow{ \sf{19n - 11}}

Hope I helped!

Best regards! :D

grandymaker [24]4 years ago
3 0

Hey there! I'm happy to help!

First we use the distributive property to undo the parentheses.

7n+12n-9-2

We combine the terms with n.

19n-9-2

And we combine the constants.

19n-11.

Have a wonderful day! :D

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Zari folds the net shown into model of a solid figure. How many edges, faces, and vertices does the model have?
adoni [48]

Answer:

Faces = 6

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Step-by-step explanation:

In a solid geometric shape :

         A face is a flat surface : faces = 6

         A vertex (plural: vertices) is a Corner : vertices = 8

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6 0
3 years ago
Find the median of the data.<br> 12, 33, 18, 28, 29, 12, 17, 4, 2<br> The median is
Reptile [31]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
Explanation please will give brainliest.​
Sonja [21]

Answer:

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Step-by-step explanation:

Given

AB = 16

BC = 12

Required

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Since A, B and C are collinear, then:

AC = AB + BC

So, we have:

AC = 16 + 12

AC = 28

5 0
3 years ago
A runner runs a distance of 450 metres in a time of 50 seconds. What is his average speed?
vekshin1

Answer:

0.279 miles / 0.449 km

Step-by-step explanation:

convert the meters into miles/kilometers to get your answer

4 0
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Reika [66]

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DONT TRUST ME THOUGH

Step-by-step explanation:

6 0
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