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Misha Larkins [42]
3 years ago
12

Simplify: (3x^2-5x +9)+(7x^2+8x-5

Mathematics
2 answers:
Ber [7]3 years ago
6 0

Answer:

=10x2+3x+4

Step-by-step explanation:

I hope this helps you

gogolik [260]3 years ago
6 0

Answer:

10x^2+3x+4 should be the correct answer

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On
olya-2409 [2.1K]

Answer:

28.75 or 28 3/4

Step-by-step explanation:

This equation is made for Long Division:

115/4

4 cannot go into 1 evenly.

4 can go into 11, 2 times.

4x2=8

11-8=3

4 can go into 35, 8 times.

35-32=3

Add a zero at the end, then divide 4 into 30.

4 goes into 30, 7 times.

30-28=2

Add another zero, then divide again.

4 goes into 20, 5 times.

20-20=0

So, after you hit an even number you can stop dividing and put in your answer.

28.75

6 0
3 years ago
Math. Help much appreciated
ella [17]

First of all, expand the left hand side:

4x+4 - 7 < 3x + 5

Sum like terms:

4x -3 < 3x + 5

Add 3 to both sides:

4x < 3x + 8

Subtract 3x from both sides:

x < 8

So this is the solution. Every number smaller than 8 (excluded) is part of the solution of this inequality.

4 0
3 years ago
Henry and Bailey plan to make key chains. They need foot of string and 5 beads for each key chain. Henry has $8 to buy string, a
Alona [7]

Answer:

72 Keychains

Step-by-step explanation:

120 feet = $3.25

divide 120 by 3.25 to find how much string can be bought with $1. The result is 36.923. Then multiply that number by the number of dollars allotted to buying string. 8*36.923= 295.384. This is the total number of feet of string they have. They use 1 foot for each key chain so they can make 295 keychains based on how much string they have.

35 beads = $2.59

Divide 35 by 2.59 to find how many beads can be bought with $1. The result is 13.514. Then multiply that number by the number of dollars allotted to buying beads. This comes out to 364.878. This means She can buy 364 beads. Each Key chain needs 5 beads so divide 364/5 getting a total of 72 keychains.

Since there aren't enough beads to make any more than 72 keychains, they can make a total of 72 keychains (even though there is extra string)

5 0
3 years ago
How to find the answers?​
allsm [11]

The computation shows that the value of blue which is represented by x is 12.

<h3>How to calculate the value?</h3>

From the information given, it was stated that 30 people were in the kindergarten.

Green = 10

Red = 8

Blue (x) = 30 - (10 + 8)

= 30 - 18

= 12

Since the teacher want to paint the class with the most favorite color, the appropriate color to use will be blue.

Learn more about computations on:

brainly.com/question/4658834

#SPJ1

3 0
2 years ago
What is the answer<br> 3/18 + 7/18= ???
torisob [31]

Answer:

10/18

Step-by-step explanation:

3/18 +7/18 =10/18

6 0
3 years ago
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