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s2008m [1.1K]
3 years ago
12

The sum of two numbers is twice their difference. The larger number is 2 more than twice the smaller

Mathematics
1 answer:
Alexandra [31]3 years ago
7 0

The larger number is 6 and the smaller one is 2.


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Damon has five dimes and some nickels in his pocket, worth of a total of $1.20. To find the number of nickels Damon has a, stude
Agata [3.3K]
The answer to the equation should be in cents whereas it is in dollars which would be incorrect 
6 0
3 years ago
Two trains leave New York at the same time heading in opposite directions. Train A travels at 4/5 the speed of train one. After
grandymaker [24]
<h3>Answer:  </h3><h3>speed of train A = 44 mph</h3>

=============================================

Work Shown:

x = speed of train A

y = speed of train B

"train A travels 4/5 the speed of train B" (I'm assuming "train one" is supposed to read "train B"). So this means x = (4/5)y

distance = rate*time

d = x*7

d = (4/5)y*7 = (28/5)y represents the distance train A travels

d = y*7 = 7y represents the distance train B travels

summing those distances will give us 693

(28/5)y + 7y = 693

5*(  (28/5)y + 7y ) = 5*693

28y + 35y = 3465

63y = 3465

y = 3465/63

y = 55

Train B's speed is 55 mph

4/5 of that is (4/5)y = (4/5)*55 = 4*11 = 44 mph

Train A's speed is 44 mph

8 0
3 years ago
A door is 8 feet tall and 4 feet wide. What is the area?
zysi [14]

Answer:

32

Step-by-step explanation:

a door is rectangular in shape

area = length × breadth

8 × 4

32

7 0
3 years ago
Read 2 more answers
15+0.5x=25+0.25x please show how
sveticcg [70]

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

x= 40

8 0
2 years ago
Read 2 more answers
Hiya! Here's my question:
Step2247 [10]

wait i got it!

Since 18 kilograms are 18000 grams, you have

18000/30=600

and

800/30=26.6

So, with 18 kilograms of salt the baker can make exactly 600 batches with no leftovers, while with 800 grams of salt the baker can make 26 batches, with some leftovers.

In fact, 26 batches require

26 x 30 =780

grams of salt, and the remaining

800-780=20

grams of salt are not enought to prepare the next batch

Step-by-step explanation:

5 0
3 years ago
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