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Rainbow [258]
3 years ago
15

Solve.−0.55p − 7 = 0.45pThe solution is p =HELPP PLZ

Mathematics
1 answer:
devlian [24]3 years ago
5 0

Answer:

p=-7

Step-by-step explanation:

-0.55p-7=0.45p

-7=0.45p+0.55p

-7=p

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Ben is 20 years older than Daniel. Ben and Daniel first met two years ago. Three years ago, Ben was 3 times as old as Daniel.How
astraxan [27]
Let b= Ben's age
Let d= Daniel's age

We know:
b=d+20
and
b-3=3(d-3)

Plug the value of b into the second equation:
(d+20)-3=3(d-3)
\rightarrow d+17=3d-9
\rightarrow-2d+17=-9
\rightarrow-2d=-26
\rightarrow d=13

Since Ben is 20 years older than Daniel, Ben is 13+20=33 years old.
3 0
3 years ago
How do this problem?
Naily [24]
1/5(3x - 0.5) + 1/6= x/5 + 0.5
change decimals to fractions (0.5=1/2)

1/5(3x - 1/2) + 1/6= x/5 + 1/2
multiply 1/5 by each term in parentheses

(1/5*3x) + (1/5*-1/2) + 1/6= x/5 + 1/2
multiply within parentheses

3x/5 - 1/10 + 1/6= x/5 + 1/2

need a common denominator; all denominators go into 30

18x/30 - 3/30 + 5/30= 6x/30 + 15/30
combine like terms

18x/30 + 2/30= 6x/30 + 15/30
subtract 6x/30 from both sides

12x/30 + 2/30= 15/30
subtract 2/30 from both sides

12x/30= 13/30
multiply both sides by 30 to eliminate fractions

(12x/30)(30)= (13/30)(30)
12x= 13
divide both sides by 12

x= 13/12 or 1.083333


ANSWER: x= 13/12 or 1.083333

Hope this helps! :)
7 0
3 years ago
Read 2 more answers
Show that x2 +x-3=0 has a solution between 1 and 2
Natali5045456 [20]

Answer:

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Step-by-step explanation:

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ohaa [14]

Answer:

7 cm squared

Step-by-step explanation:

not sure if its right but thats what i got round up to

8 0
3 years ago
Need help I don't understand (geometry)....<br>​
kumpel [21]
(11,11). The first coordinate in a pair is the x coordinate, which tells you how far to move left of right. The second coordinate is the y coordinate, which tells you how much to move up or down. If you’re translating right, you’re going to add to the first number. If you’re translating left, you would subtract it. If you’re translating up, you add to the second number. If you’re translating down, you subtract from the second coordinate.
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3 years ago
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