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4 years ago

X=18+9/2y help Me please

Mathematics

1 answer:

Nana76 [90]4 years ago

4 0

Answer:

x = 18 + 9y/2

x-18 = 9y/2

(x-18)x2=9y

2(x-18)=9y

2(x-18) / 9 = y

y= 2(x-18)/9

Step-by-step explanation:

Simplify 9/2y to 9y/2

Then Subtract 18 from both sides

Now Multiply both sides by 2

Then Regroup the terms

now divide both sides by 9

Then you will Switch sides

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3) You are selling raffle tickets. You sell tickets to adults and children. You sell a

kiruha [24]

Answer:

Step-by-step explanatiox

x+y = 475

3x + 2y = 1200

3(-y + 475) = 1200

-3y + 1425 = 1200

-3y = -225

y= 75 kids

x = 350

8 0

3 years ago

The radius of a circle is 1.7 cm. Find the circumference to the nearest tenth.

dmitriy555 [2]

Step-by-step explanation:

Given

Radius (r) = 1.7 cm

Circumference (C)

= 2πr

= 2 * 3.14 * 1.7

= 10.7 cm

Hope it will help :)

7 0

3 years ago

What is the compound interest if the principle is 2500, the rate is 8%, the time is 4 years, and it's compounded annually? Pleas

algol13

Answer:

901.22

Step-by-step explanation:

It is given that,

Principal = 2500

Rate of interest = 8% = 0.08 compounded annually.

No. of times interest compounded in a period = 1

Time is 4 years.

Formula for amount is

$A=P(1+\dfrac{r}{n})^{nt}$

where, P is principal, r is rate of interest, n is number of times interest compounded in period and t is number of years.

Substitute P=2500, r=0.08, n=1 and t=4 in the above formula.

$A=2500(1+\dfrac{0.08}{1})^{1(4)}$

$A=2500(1.08)^{4}$

$A\approx 3401.22$

So, the compound interest is

$C.I.=A-P$

$C.I.=3401.22-2500$

$C.I.=901.22$

Therefore, the compound interest is 901.22.

5 0

3 years ago

Please help I need this done by tomorrow

melomori [17]

Answer:

n = 9

Step-by-step explanation:

We require to consider $\sqrt{n+16}$

For it to be a natural number then it must be a perfect square

If n = 9 , then

$\sqrt{9+16}$ = $\sqrt{25}$ = 5

and

$\frac{n}{3}$ = $\frac{9}{3}$ = 3

34 + n = 34 + 9 = 43

5, 3, 43 ∈ natural numbers

Then n = 9 is the smallest value

5 0

3 years ago

Solve the equation 2x/3-1/2=2x+5/6

EastWind [94]

Answer:

x = -1

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

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

Step 2: Subtract 2x from both sides.

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

Step 3: Add 1/2 to both sides.

-4/3x + -1/2 = 5/6

-4/3x + -1/2 + 1/2 = 5/6 + 1/2

-4/3x = 4/3

Step 4: Multiply both sides by 3/(-4).

(-3/4) * (-4/3x) = (3/-4) * (4/3)

x = -1

6 0

3 years ago