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

Write the set of all real numbers greater than 19 and less than 32 in set-builder notation.

Aleks04 [339]

Answer: {xI x ∈ R, 19 < x < 32}

Step-by-step explanation:

This notation is:

{xI condition1, condition2, ...}

The first condition is:

From what set we take the values of x?

From the set of real numbers.

x ∈ R

The other conditions are the limitations that we have for x, in this case:

19 < x < 32

Then we can write this as:

{xI x ∈ R, 19 < x < 32}

8 0

2 years ago

If a right triangle has a hypotenuse of 12 cm and one leg that measures 9 cm, find the length of the other leg.

otez555 [7]

By Pythagoras Theorem,
the length of the other leg= (12^2-9^2)^1/2
hope this helps

6 0

3 years ago

Match the following equation to the correct situation.

uranmaximum [27]

Answer:

The equation given in the question matches the situation C.

Step-by-step explanation:

A. The amount that Cindy paid for books was 15% of p i.e. it is only $\frac{15p}{100} = 0.15p$

B. The amount is given to a charity after saving 15% of p. That means if p is the amount of charity, then there were a savings of 15% of p.

Therefore, the total charity payment after savings = p - 15% of p = $p - \frac{15p}{100} = p - 0.15p = 0.85p$

C. The amount that Sandy paid for a shirt with 15% tax on p.

Therefore, if the price of a shirt is p, then total payment of Sandy after tax is = p + 15% of p = $(p + \frac{15p}{100}) = p + 0.15p = 1.15p$

Hence, the equation given in the question matches the situation C. (Answer)

8 0

3 years ago

2. Kira's skateboard is 71 centimeters long. What is the length of her skateboard in millimeters? Show your work. Answer:

Marrrta [24]

Answer is 710

Divide length value by 10

7 0

1 year ago

Read 2 more answers

Ab over 2 equal 2a minus 1,express a in terms of b

sasho [114]

$\frac{ab}{2}$ = 2a - 1

2( $\frac{ab}{2}$ ) = 2(2a - 1) multiplied both sides by 2

ab = 4a - 2 distributed the 2 on the right side

ab - 4a = -2 subtracted 4a from both sides

a(b - 4) = -2 factored out "a" from the left side

a = $\frac{-2}{b - 4}$ divided (b - 4) on both sides

Answer: a = $\frac{-2}{b - 4}$

6 0

2 years ago