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2 years ago

Help with this please!!

Mathematics

1 answer:

kompoz [17]2 years ago

6 0

Answer:

Positive hope it help :D

Step-by-step explanation:

Sorry if I’m not right :/

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How do I find x in this problem?

torisob [31]

Answer:

(6-2)×180 = 720

101+154+72+123+145+x=720

595 + x = 720

x = 720-595

x= 125

5 0

2 years ago

15 points: can someone help me with this thank you. (all separate equations)

OLga [1]

Step-by-step explanation:

$6x+3y=12\qquad\text{subtract}\ 6x\ \text{from both sides}\\\\6x-6x+3y=12-6x\\\\3y=12-6x\qquad\text{divide both sides by 3}\\\\\dfrac{3y}{3}=\dfrac{12}{3}-\dfrac{6y}{3}\\\\\large\boxed{y=4-2y}\\\\===================$

$2p-k=3\qquad\text{subtract}\ 2p\ \text{from both sides}\\\\2p-2p-k=3-2p\\\\-k=3-2p\qquad\text{change the signs}\\\\k=-3+2p\\\\\large\boxed{k=2p-3}\\\\===================$

$6v-2w=10\qquad\text{subtract}\ 6v\ \text{from both sides}\\\\6v-6v-2w=10\\\\-2w=10-6v\qquad\text{divide both sides by (-2)}\\\\\dfrac{-2w}{-2}=\dfrac{10}{-2}-\dfrac{6v}{-2}\\\\w=-5+3v\\\\\large\boxed{w=3v-5}\\\\===================$

5 0

2 years ago

When Jennifer went to bed, there was 4 3/4 inches of snow on the ground. When she woke up, there was 6 1/2 inches of snow on the

kodGreya [7K]

let inches of snow be x..

x=6 1/2-3/4

3/4+x=6 1/2

Explanation:

Convert 1/2 into similar denominator:

1/2=2/4=x2

3/4=3/4=x1

Convert into mixed number:

6 2/4=6x4+2=26/4

Subtract the terms:

26/4-3/4=23/4

Answer:

x=23/4 or 5 3/4.

5 0

2 years ago

What's (X+3 (X+5) it's really confusing me and I need some help please

notsponge [240]

Well when you see parentheses set up like these together that automatically means to multiply. The solution is:
Apply the FOIL method: (a+b)(c+d)=ac+ad+bc+bd
x2+5x+3x+15
Simplify
x2+8x+15

5 0

2 years ago

I will get my points but answer it correctly and no LINKS!!! (factotise by using a suitable identity X5-X)

9966 [12]

x(x-1)(x+1)(x²+1)=0

Hope it helps you

6 0

3 years ago