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2 years ago

What is the right way to use substitution method?

Mathematics

1 answer:

Kazeer [188]2 years ago

7 0

Answer:

Step-by-step explanation:

Substitution method can be applied in four steps. Step 1: Solve one of the equations for either x = or y = . Step 2: Substitute the solution from step 1 into the other equation. Step 3: Solve this new equation Happy too help!

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What is the missing number in the expression 3(q+7)=27

Murljashka [212]

Answer:

Step-by-step explanation:7+2 is 9 and 9x3 is 27

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2 years ago

The following table shows the possible meal combinations when choosing an entrée and a side dish at Marty's Diner. Side Dish Ent

Dimas [21]

Answer:

5/9

Step-by-step explanation:

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3 years ago

Simplify the expression 2√ 20 − 3√ 7 − 2√ 5 + 4√ 63 .

earnstyle [38]

Answer:

The simplified form is,

$\boxed{\boxed{6\sqrt{5}+9\sqrt{7}}}$

Step-by-step explanation:

The given expression is,

$=2\sqrt{20}-3\sqrt{7}+2\sqrt{5}+4\sqrt{63}$

$=2\sqrt{4\times 5}-3\sqrt{7}+2\sqrt{5}+4\sqrt{9\times 7}$

$=2(\sqrt{4}\times \sqrt{5})-3\sqrt{7}+2\sqrt{5}+4(\sqrt{9}\times \sqrt{7})$

$=2(2\times \sqrt{5})-3\sqrt{7}+2\sqrt{5}+4(3\times \sqrt{7})$

$=4\sqrt{5}-3\sqrt{7}+2\sqrt{5}+12\sqrt{7}$

$=4\sqrt{5}+2\sqrt{5}+12\sqrt{7}-3\sqrt{7}$

$=6\sqrt{5}+9\sqrt{7}$

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3 years ago

Read 2 more answers

The problem is in the picture

creativ13 [48]

It should be the first answer choice between those two

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2 years ago

(PLEASE HELP)(THIS IS MIDDLE SCHOOL LEVEL EASY!) What is the surface area of the box

artcher [175]

Answer:

C) 42 square cm

Step-by-step explanation:

each rectangle 2x3 = 6

each square 3x3 =9

4 rectangles 4x6 = 24

2 squares 2x9=18

24+18 = 42

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1 year ago

What is the right way to use substitution method?​

What is the right way to use substitution method?