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Vera_Pavlovna [14]
2 years ago
7

A couch and coffee table cost a total of $1272. The cost of the couch is two times the cost of the coffee table. Find the cost o

f each item.
Mathematics
2 answers:
Lunna [17]2 years ago
5 0

Answer:

318+954

Step-by-step explanation:

divide 1272 by 2 to get what they would cost if they were the same amount then divide that by 2 to get 318 times that by 3 to get 954 and add 318 to get 1272

frez [133]2 years ago
5 0
The couch would be $848 and the coffee table is $424.

Since the couch cost twice as much as the coffee table you would take 1272 and divide it by 3. Making it $424. If you multiply 424 by 2 it gives you $848 and adding the $424 will give you $1272. The other answer is wrong. You don’t divide by two.
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A rectangle has a length of 2x+7 and a width of 3x+8.
Phantasy [73]

Answer:

Below.

Step-by-step explanation:

Perimeter = 2(2x + 7 + 3x + 8)

= 2(5x + 15)

= 10x + 30.

3 0
2 years ago
A coin bank has 250 coins dimes and quarters worth 39.25 how many of each type of coins are there?
Maurinko [17]
Set up a system of equations.

0.10d + 0.25q = 39.25
d + q = 250

Where 'd' represents the number of dimes, and 'q' represents the number of quarters.

d + q = 250

Subtract 'q' to both sides:

d = -q + 250

Plug in '-q + 250' for 'd' in the 1st equation:

0.10(-q + 250) + 0.25q = 39.25

Distribute 0.10:

-0.10q + 25 + 0.25q = 39.25

Combine like terms:

0.15q + 25 = 39.25

Subtract 25 to both sides:

0.15q = 14.25

Divide 0.15 to both sides:

q = 95

Now plug this into any of the two equations to find 'd':

d + q = 250

d + 95 = 250

Subtract 95 to both sides:

d = 155

So there are 95 quarters and 155 dimes.
8 0
3 years ago
Read 2 more answers
48 students are girls they make up 60% of the class how many students total
qwelly [4]
For this you would do
48 \div .60
Because 60% is the same as 0.60. And solving a problem like this is the opposite of finding a percent of a number. When you solve this you get 80. So there are 80 students in total.
5 0
3 years ago
G(x)=x3 -2x2+5x-8g(-5)
taurus [48]

Answer:

g(x)=x3-2x2+5x+40g

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the value of x in the figure? Enter your answer in the box.<br> 145°<br> (2x + 15)°<br> x=
Nikolay [14]

Answer:

Answer: x=65

Step-by-step explanation:

Since they're vertical angles both sides are equal to 145 degrees

So, 145-15= 130 to get rid of the constant

Then, 130/2=65

To check you work add up all of your solutions to get 145

2*65=130 & 130+15=145

Therefore, x=65

8 0
2 years ago
Read 2 more answers
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