Which expression is equal to 3(5x - 6) -2(4x + 5)? A) 7x - 1 B) 9x - 1 C) 9x - 13 D) 7x - 28

Answers

Answer 1

Answer: $3(5x - 6) -2(4x + 5) \n \n 15x - 18 - 8x - 10 \ / \ expand \n \n (15x - 8x) - 18 - 10 \ / \ gather \ the \ like \ terms \n \n 7x - 18 - 10 \ / \ simplify \n \n 7x - 28 \ / \ simplify \n \n$

The final result is D) 7x - 28.

Answer 2

Answer: 3 (5x-6)-2 (4x+5)
1st Distribute the 3 and -2
15x-18-8x-10
Now combine like terms
7x-28 answer D

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If x = -2, then x 2 - 7x + 10 equalsA) 0B) 20C) 28

What is DE?
Enter your answer as a decimal in the box
12.6
units

Answers

Answer:

$DE=6.3\ units$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

In this problem

Triangles ABC and DBE are similar by AA Similarity Theorem

$(AC)/(DE)=(AB)/(DB)=(BC)/(BE)$

we have

$AC=12.6\ units$

$AB=2DB$

substitute

$(12.6)/(DE)=(2DB)/(DB)/tex]</p><p>Simplify</p><p>[tex](12.6)/(DE)=2$

$DE=12.6/2\nDE=6.3\ units$

450 is 75% of what number

Answers

•75% = 0.75
•450 ÷ 0.75 = 600
•450 is 75% 0f 600
There are the steps that I used to get that 450 is 75% 0f 600

just divide 450 by the 75%. So 450/.75 is 600

Simplify 4 + (-3) -2 x (-6)

Answers

Answer:

4 - 3 - 2 x -6

do the multiplication first

4 - 3 - (-12)

4 - 3 + 12

=13

hope it helps :)

Hopethiswillhelpu.....

67,000 rounded to the nearest ten thousand is

Answers

When you round to the nearest 10 thousand. Find the number in the 10 thousand place, that would be the 6 in this case, now look at the number to the right of it, if that number is 5 or higher, then your 67,000 becomes 70,000.

If the number to the right of place value is lower than 5 then it would have been rounded to 60,000.

Hope this helps you. :-)

70,000 is the answer.
Round the number BEHIND the ten thousand and you have your answer.

Rob has 40 coins,all dimes and quarters worth $3.60.how many quarters does she have?

Answers

Not logical the least you can have with 40 coins only dimes and quarters is $4 (40 dimes)

How many grams are in a kilogram

Answers

There are 1000 grams in 1 kilogram.

1000 grams in a kilogram

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