1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Orlov [11]
2 years ago
15

Can help me howMacam mana... ​

Mathematics
2 answers:
Alborosie2 years ago
8 0

Step-by-step explanation:

i)

2(x+2)=7

2x+4=7

2x=7-4

2x=3

x=3/2

ii)3x + y =8 , y=x

3x + x = 8

4x = 8

x = 2

Tresset [83]2 years ago
4 0

Answer:

x = 2

Step-by-step explanation:

2(x+2)=7

2x+4=7

2x=7-4

2x=3

x=3/2

3x + y =8 , y=x

3x + x = 8

4x = 8

x = 2

You might be interested in
Marita orders 12 yards of material to make banners if she needs one foot of fabric for each Banner how many banners can she make
AleksandrR [38]
36 banners 12 yards=36Ft
3 0
2 years ago
Read 2 more answers
Jack took out a 6-year loan for $25,000 to purchase a boat at a 4.5% interest rate. If the interest is compounded monthly, what
Kruka [31]

Answer: $32,732.58

Step-by-step explanation:

To calculate the total loan payment over the course of the loan period, use the future value formula:

= Loan amount * (1 + rate) ^ number of years

As this loan is compounded monthly, you need to convert certain terms to monthly figures:

Number of periods = 6 * 12 months = 72 months

Interest = 4.5 / 12 = 0.375%

Total payment:

= 25,000 * ( 1 + 0.375%)⁷²

= $32,732.58

6 0
2 years ago
find the perimeter and area of the polygon with the given vertices. P(-3,4), Q(1,4), R(-3,-2), S(3,-2)
Elza [17]

Answer:

OMG!!!!!!!!!OMG!!!OMG

5 0
3 years ago
What's the error? Jerry says that a cube with edges that measure 10 cm has a volume that is twice as much as a cube with sides t
disa [49]
The quick way to dispute something like this is to simply do the calculation and then create a ratio. 

Cube One (Large Cube)
The formula for a cube is V = e^3 
e = the measurement of an edge. In this case.
e = 10 cm
V = e^3
V = 10^3 = 10*10*10
V = 1000 cm^3

Cube 2 (Small Cube)
V = e^3
e = 5 cm
V = 5*5*5
V = 125 cm^3

Ratio
Large Cube / Small Cube = 1000 / 125 = 8/1.

The difference in size is 8 to 1 not 2 to 1.

Explanation
He's right if he sticks to one side. The ratio of one side of the large cube to the small one is 2 to 1. But once you put that into the formula for volume, three sides are multiplied together and that 2 shows up everytime you multiply the sides together. 

4 0
3 years ago
How long in days is a mega second? Hi, I'm helping my little brother with a maths assignment at the moment and I couldn't quite
Marat540 [252]
I've heard of milliseconds, microseconds and nanoseconds, but never a megasecond. By the way: 
<span>1 second = 1000 milliseconds </span>
<span>1 second = 1,000,000 microseconds </span>
<span>1 second = 1e+009 nanoseconds
</span>
8 0
3 years ago
Other questions:
  • you have reading homework every 6 days and you have science homework every 15 days. If you have homework in both today when will
    13·1 answer
  • Hcf of 72, 120, 192 with explanations
    6·1 answer
  • A coin has heads on one side and tails on the other the coin is tossed 12 tossed 12 times and lands heads up 4 times which best
    6·1 answer
  • If there are 200 pencils in a case and 75 are sharpened, what percentage of pencils are not sharpened
    12·1 answer
  • (X-2)^2 is subtracted from 3x^2-4x
    6·1 answer
  • Subtract 5p + 8q from the sum of 5p + 4q and – 9p + 69.<br>​
    8·2 answers
  • Given that s ⊥ t and r ⊥ t, what conclusion can be made?
    7·1 answer
  • What should the first step be when solving for x?<br>-5x+6(-2x-13)=7​
    13·2 answers
  • A restaurant charges $5.00 for a slice of pizza that is 1/3 of a pizza and $4.50 for a slice that is 1/5 of a pizza. One day the
    9·1 answer
  • Lisa receives a net pay of $619.06 biweekly. She has $143withheld from her pay each pay period. What is her annual gross salary?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!