All categories

3 years ago

2. Kim is x years old. Jordan is 7 years older than Kim. Four times Jordan’s age is equal to 200.

Mathematics

2 answers:

Rom4ik [11]3 years ago

7 0

a:200/4= 50

50-7=43

b:43

c:50

lesantik [10]3 years ago

6 0

Answer:

Kim is 43 years old, and Jordan (7 years older) is 50 years old.

Step-by-step explanation:

Representation:

Kim's age is x

Jordan's is x + 7

Then 4(x + 7) = 200, and 4x + 28 = 200.

Simplifying, 4x = 172. Dividing both sides by 4 to isolate x, we get:

x = 172/4 = 43

Thus, Kim is 43 years old, and Jordan (7 years older) is 50 years old.

You might be interested in

The volume of a cone is 1540cm³. If its radius is 7cm, calculate the height of the cone. (Take pi = 22/7)

Ann [662]

Answer:

$h=30$

Step-by-step explanation:

Volume of a cone=1540 $cm^{3}$ , Radius=7cm.

The height of a cone=h

When we need to find the height of a cone, we can use the formula of the volume of a cone, which is $\frac{1}{3} \pi r^{2} h$ to find the height of a cone.

$1540cm^{3} =\frac{1}{3}\pi r^{2} h$

Put the pi value=22/7 and the value of radius which is 7 cm into the formula.

$1540cm^{3}=\frac{1}{3}*\frac{22}{7} 7^{2}h$

$1540cm^{3} =\frac{154}{3}h$

Move $\frac{154}{3}$ to another side. 1540 divided by $\frac{154}{3}$ to calculate what is the value of h, h is the height of a cone. Like this.

$\frac{1540cm^{3} }{\frac{154}{3} } =h$

$30=h$

Rearrange the h.

$h=30$

I hope you will understand my solution and explanation. If you still cannot get the point, you can ask me anytime! Thank you!

4 0

2 years ago

Read 2 more answers

Can someone help with question 3

kirza4 [7]

Answer:

This is what you have to explain:

With 5n, you are multiplying a number and a variable.

With 5 + n, you are adding a number and a variable.

4 0

3 years ago

(Round to the nearest tenth of a percent.) In 2011, the IRS increased the deductible mileage cost to

RUDIKE [14]

Answer:

$\%Change = 8.8\%$

Step-by-step explanation:

Given

$Initial = 51\ cents$

$Final = 55.5\ cents$

Required

Determine the percentage change

Percentage change is calculated as;

$\%Change = \frac{Final - Initial}{Initial} * 100\%$

$\%Change = \frac{55.5 - 51 }{51 } * 100\%$

$\%Change = \frac{4.5}{51} * 100\%$

$\%Change = \frac{4.5* 100\%}{51}$

$\%Change = \frac{450\%}{51}$

$\%Change = 8.8\%$

<em>Hence, the percentage change is approximately 8.8%</em>

6 0

2 years ago

X-y=1,y=5<br> What is the answer to this problem ?

Karo-lina-s [1.5K]

Answer: x = 6 y = 5

Step-by-step explanation: coz I juss know

8 0

2 years ago

Read 2 more answers

Point M is the midpoint of point A and point B. Find the coordinates of point B .

kkurt [141]

Answer:

coordinate of point b is 12,1 by midpoint formula

Step-by-step explanation:

take mp formula and evaluate by putting value it will give you x again same process then it will give you u

8 0

2 years ago