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3 years ago

2+2=6 3+3=11 4+4=18 6+6=?

Mathematics

1 answer:

maria [59]3 years ago

3 0

The pattern is: x + x = x^2 + 2
So 6 + 6 = 36+2 = 38

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-2x + 3y = 1

Andre45 [30]

Answer:

-2x+3y =1.......(1)

y=3x-9........(2)

Now,

putting the value of y in equation (1),

-2x+3(3x-9)=1

or,-2x+9x-27=1

or,7x-27=1

or,7x=28

x= 4

Now putting the value of X in equation (2),

y=3×4-9

= 12-9

(x,y)=(4,3)

6 0

2 years ago

A family is planning a three-week vacation for which they will drive across the country. They have a van that gets 12 miles per

svetoff [14.1K]

Answer:

The family will pay 34722 cents more if they take the van

Step-by-step explanation:

Given

Van = 12 miles per gallon

Sedan = 36 miles per gallon

Distance = 2500 miles

Gas = $2.50 per gallon

First, we need to determine the number of gallons that'll be used by both vehicles

This is done by dividing total distance by number of miles per gallon

$Van = \frac{2500}{12} \ gallon$

$Sedan = \frac{2500}{36}\ gallon$

Next, is to multiply this by the cost of gas per gallon;

This gives the total spendable amount on both vehicles

$Van = \frac{2500}{12} * \$2.50$

$Van = \frac{\$6250}{12}$

$Van = \$520.833$

$Sedan = \frac{2500}{36}* \$2.50$

$Sedan = \frac{\$6250}{36}$

$Sedan = \$173.611$

Next is to get the difference between these amounts

$Difference = \$520.833 - \$173.611$

$Difference = \$347.222$

Multiply by 100 to convert to cents

$Difference = 347.222 * 100 cents$

$Difference = 34722.2 \ cents$

$Difference = 34722\ cents$ (Approximated)

Hence;

<em>The family will pay 34722 cents more if they take the van</em>

8 0

2 years ago

*NEED HELP QUICKLY* son needs a math assignment done within the hour so he can submit it and get a decent grade. i tried helping

ahrayia [7]

time would be the independent variable as it doesnt depend on the distance. distance is dependant as you need a certain amount of time to get somewhere..

7 0

2 years ago

Read 2 more answers

8. Don made deposits of $500 at the end of each year for eight years. The rate is 8% compounded annually. Using the tables found

Sonbull [250]

Answer:

Step-by-step explanation:

P = $ 500 ;r =8% ; n= 8

A = P* (1+r/100)^n

A= 500 * ( 1 + 8/100)⁸

= 500 * ( 1 + 0.08)⁸ = 500 * 1.08⁸

=500*1.85

= $ 925.45

5 0

2 years ago

Solve for x. 4x − 33=7

tatuchka [14]

Note the equal sign. What you do to one side, you do to the other.

Do the opposite of PEMDAS. First, add 33 to both sides

4x - 33 (+33) = 7 (+33)

4x = 40

Next, divide by 4

4x/4 = 40/4

x = 40/4

x = 10

10 is your answer

hope this helps

5 0

2 years ago

Read 2 more answers