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netineya [11]
3 years ago
8

Simplify the expression 4x+3(5y+x

Mathematics
1 answer:
Helen [10]3 years ago
4 0

Answer:

Step-by-step explanation:

4x + 3(5y + x)

= 4x (5y + x) + 3 (5y + x)

= 20xy + 4x² + 15y + 3x

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I'm confused. Can someone help me?
yanalaym [24]

Answer: BOC is 80 COD is

60 (i think I’m not sure)

Step-by-step explanation:

DOF is 120 minus 40 (cuz it’s a vertical angle and is parallel from the other one) is 80 and I got 60 for COD because 80+80+40+40=240 a circle is 360 so 360-240=120 and since it’s two vertical angles you have to divide it by 2 to get 60. Again thts only what I think so Idk if it’s right or not this is what I think the answer is.

6 0
4 years ago
6x − 5 > −29 Whats the answer???
marysya [2.9K]
6x - 5 > -29

Solve for x and thus it will be:

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8 0
3 years ago
You have a total of 42 math and science problems for homework. You have 10 more math problems than science problems. How many pr
elena-14-01-66 [18.8K]

Answer:

number of math problems = 26

number of science problem = 16

Step-by-step explanation:

a total of 42 math and science problems for homework

Let m be the number of math problems and 's' be the number of science problems

m+s=42

You have 10 more math problems than science problems

m=s+10

substitute s+10 for m in the first equation

m+s=42

s+10+s=42

2s+10=42

subtract 10 from both sides

2s = 32

divide both sides by 2

s= 16

m=s+10

m=16+10

m=26

number of math problems = 26

number of science problem = 16

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