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frez [133]
3 years ago
6

What is negative 3x plus 12x

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
7 0
9x because a negative subtracts from a positive
nika2105 [10]3 years ago
6 0
-3x + 12x would equal 9x
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Can someone help quickly
bixtya [17]

Answer:

your answer would be 9

a=9

Step-by-step explanation:

6 0
3 years ago
9 + 6 + 5+ 15<br> Is that
Liula [17]
9+6= 15
15+5=20
20+15=35
35 is the answer.
4 0
2 years ago
An angle's supplement is nine times of its complementary angle. Find the measure of the angle, the complement of the angle,and t
Masja [62]

Answer:

Measure of required angle = 78.75° , measure of  complementary angle  = 11.25° and measure of supplementary angle = 101.25°

Step-by-step explanation:

let assume measure of required angle = x

since sum of angle and its supplement is 180°

so x + supplement of x = 180

⇒ supplement of x  = 180 - x

since sum of angle and its complement is 90

so x + complement of x = 90

⇒ complement of x = 90 - x

Form given information

supplement of x = 9 × ( complement of x)

⇒180 - x = 9 × ( 90 - x )

⇒ 180 - x = 810 - 9x

⇒ -x + 9x = 810 - 180

⇒ 8x = 630

⇒ x = 630/8 = 78.75°

complement of x = 90 - x = 90 - 78.75° = 11.25°

and supplement of x = 180 - 78.75  = 101 .25°

we can recheck our solution by multiplying complement by 9 , that is 11.25 × 9 = 101.25 which is same as supplement. Hence our solution is correct.

So we can conclude that measure of required angle = 78.75° , measure of  complementary angle  = 11.25° and measure of supplementary angle = 101.25°


8 0
4 years ago
erin is buying produce at a store.she buys c cucumbers at$0.99 each and a apples at $0.79 each .what does the expression 0.99c 0
Savatey [412]
C/a is the amount they bought so it would be 0.99*c or .99 times the amount they bought same goes to .79a
5 0
3 years ago
Read 2 more answers
At the beginning of an experiment, there are 500 grams of contaminants. Each hour, one fourth of the contaminants
quester [9]

Answer:

0

Step-by-step explanation:

Amount Of Gram= 500

one fourth of gram in one hour=1/4×500 = 125

in four hours the gram filtered out = 4×125= 500

therefore the amount of gram remaining in the contaminants = 500-500= 0 gram

7 0
2 years ago
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