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4 years ago

Find the sum of 5x+20 and the opposite of 20. Write an equivalent expression in standard form. Justify each step.

Mathematics

2 answers:

Mrrafil [7]4 years ago

7 0

The answer would more than likely to be 4..
because u divide 5 on both sides and it will give you x=4

Artemon [7]4 years ago

6 0

Do 5x + 1 instead of 5x + 20, because there was more than likely a mistype.

Now we are also looking for the reciprocal so we do (5x + 1)/20

Either that is the answer or there is something missing. If this is not the answer then there needs to be a number we can set the equation equal to

You might be interested in

What are two consecutive integers in between square root of 45

cricket20 [7]

Answer:

Between 6 and 7

Step-by-step explanation:

6^2 = 6 × 6 = 36

7^2 = 7 × 7 = 49

45 is between 36 and 49

7 0

4 years ago

Help what does 2 1⁄3 ÷ 1 1⁄2 =

azamat

Answer:

$1\frac{5}{9}$

Step-by-step explanation:

This is the answer because:

1) Reduce the expression, if possible, by cancelling the common factors.

2) You can also find the reciprocal of 1 1/2 = 3/2 while dividing the expression:

1. Convert both fractions into improper fractions:

$2\frac{1}{3} = \frac{7}{3}$

$1\frac{1}{2} = \frac{3}{2}$

2. Divide both fractions:

$\frac{7}{3}$ ÷ $\frac{3}{2}$ = $\frac{7}{3}$ x $\frac{2}{3}$ = $\frac{14}{9}$ = $1\frac{5}{9}$

Therefore, the answer is $1\frac{5}{9}$

Hope this helps! :D

4 0

3 years ago

I need help please!!

Harrizon [31]

I'll do 1 and 8, and you should then be able to do 2 and 9!

For 1, we can multiply these separately - 3*4*9=108 and 5+7+2=13 (exponent multiplication is adding them!), so we have 108b^13

For 8, we can again add the exponents up to get (5/7)^8

3 0

3 years ago

Please answer quick! im being timed!!!!!!!

Salsk061 [2.6K]

Answer:

A. 25°

- 15°

B. 5.3

-8. 2

Step-by-step explanation:

i'm sorry ya kalo jawaban nya salah

7 0

3 years ago

Round 399,713 to the nearest thousand

solniwko [45]

399,713 rounded to the nearest thousand would be <span>400,000

Hope I Helped!!! :-)

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3 0

3 years ago