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Liula [17]
3 years ago
8

2x − 2) + (x + 1) + x + (x + 1) = (2x − 9) + (x + 1) + (x + 8) + x,

Mathematics
2 answers:
Yuri [45]3 years ago
6 0

Answer:5x=5x

Step-by-step explanation:(2x+x+x+x)+(-2+1+1)=(2x+x+x+×)+(-9+1+8) 5x+0=5x+0. 5x=5x

KengaRu [80]3 years ago
4 0

Answer:

x=1

Step-by-step explanation:

5x=5x  x=1

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Elena has bought 320 tropical fish for a museum display. She bought 7 times as many triggerfish as parrotfish. How many of each
STALIN [3.7K]
The total number of fish bought was 320. And you know she bought two types of fish. The best way to solve this is guess and check. It would be the fastest. So she bought 7 times as many trigger-fish as parrot fish that means the number of trigger-fish bought was 7p. This means 320 = 7p +p. So all you do is take educated guesses for the number of parrot fish and check if it is right. So if she bought 50 parrot fish. 7(50) + 50 = 400. Close but a bit high. Lets keep guessing. 7(35) + 35 = 245. So now we know the answer is between 50 and 35. So lets try 40. 7(40) + 40 =320. That works so we know she bought 40 parrot fish and 280 trigger-fish.
8 0
2 years ago
If 2 miles is equal to 3,218.7meters, how many meters are there in 7 miles
AysviL [449]
3218.7/2 is 1 mile so answer is
2(3218.7/2)= 11265.45
7 0
2 years ago
Find the equation of the line that is perpendicular to y = - 1/3 x + 2 and passes though the point (-5,2)
elena55 [62]

Answer:

y - 2 = 3(x + 5)

Step-by-step explanation:

The given equation has slope -1/3.  Any line perpendicular to the given line has a slope which is the negative reciprocal of -1/3, which comes out to +3.

Use the point-slope formula y - k = m(x - h):

y - 2 = 3(x + 5)

6 0
3 years ago
jewelry is commonly weighted in carats. five carats are equivalent to one gram.how many grams are in 24-carat gold chain
Olin [163]

Hi There!

Conversion: 5 carats = 1 gram

Find: How many grams are in 24 carats.

Solution: 24 / 5 = 4.8

Answer: 4.8 carats

Hope This Helps :)

6 0
2 years ago
At a grocery store, almonds are on sale for $3.78 per pound. What is the price of 4.5 pounds? Please show explanation
Digiron [165]
Answer:
$17.01
Step-by-step explanation:
To find the the price, you must find price per pound x how many pounds you will be priced for
price per pound x how many pounds you will be priced for
This is represented by 3.78 x 4.5
3.78 x 4.5 = 17.01
$17.01 is the cost of 4.5 pounds of almonds
5 0
3 years ago
Read 2 more answers
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