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3 years ago

Y=2x+4 y=2 using substitution

Mathematics

2 answers:

kykrilka [37]3 years ago

6 0

Answer:

y=2x+4 y=2

2=2x+4

-4 -4

2x= -2

---- ----

2 2

x = -4

Step-by-step explanation:

CHECK:

step 1: Plug everything in.

2=2 correct y=2x+4

2=2(-4)+4

2= -8+4

2= -4

divide 4 by 2

2= -2 correct pls mark as brainliest!

klio [65]3 years ago

3 0

Answer:

x = -1

Step-by-step explanation:

use the value of y and plug it in

2 = 2x + 4

-4. -4

-2 = 2x

divide each side by 2

-1 = x

you can plug it back in to see if it is right

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. Out of 40 pupils only 30 pupils submitted their project on time

Verizon [17]

Answer:

75 %

Step-by-step explanation:

To solve for the above question,

The percentage of pupils that submitted their project on time

= Number of pupils that submitted their project on time/Number of pupils × 100

Number of pupils that submitted their project on time = 30 pupils

Number of pupils = 40 pupils

= 30/40 × 100

= 75 %

The percent of the pupils that submitted their project on time is 75%

3 0

3 years ago

Explain how you know whether to add or subtract when you use the Distributive property to multiply

nirvana33 [79]

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$a\cdot (b-c)=a\cdot b-a\cdot c.$