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
stiv31 [10]
3 years ago
6

Ralph is 3 times as old as Sara. In 6 years, Ralph will be only twice as old as Sara will be then. Find Ralph's age now. If x re

presents Sarah's age now, which of the following expressions represents Ralph's age in six years? 2x 6x 2x + 6 3x + 6
Mathematics
2 answers:
inessss [21]3 years ago
4 0
<span>ralph = r sara = s ralph is TODAY, 3 times older, so if sara is "s" old, ralph is 3s r = 3s in 6 years, ralph will be 2 times as old as sara THEN, in 6 years ralph will be TODAY's age plus 6, so r + 6 so if sara is "s" old, r+ 6 = 2s r + 6 = 2s</span>
Inga [223]3 years ago
4 0

Bro What Kind Of Answer Is That Because I Don't Understand

You might be interested in
HELPP!!!! YOU'LL GET 80 POINTS AND BE BRAINLIEST
Ray Of Light [21]

We have that El Paso is 320 miles from Tucson and 720 miles from San Diego.

You're travelling from Tucson to San Diego.

First we have to find the distance from Tucson to San Diego. We can do this by finding the difference between the distance of Tucson from San Diego and El Paso from San Diego.

That is:

720−320

400 miles

You leave by 6:00 am.

You drive for 75 miles per hour in 4 hours for the first part of the journey.

You then drive for 50 miles per hour for the rest of the journey.

The first step is to find the distance that the rest of the journey took. We can do that by first finding the distance covered in the first part of the journey and subtracting that from the total distance (400 miles).

To find the distance for the first part of the journey, we apply the formula for speed (rate of change of distance with time):

s = d/t

⇒d = s⋅t

where d= distance; t = time

Therefore:

d=75⋅4

d=300 miles

The first part of the journey covered 300 miles. This means that the rest of the journey covered:

400 - 300 = 100 miles

Now, to find the time the rest of the journey took, we have to apply the same formula for speed:

s=d/t

t=d/s

Therefore:

t=100/50

t=2 hrs

To find the total time it took to complete the journey, we have to add the times for the first part and the rest of the journey.

That is:

T=4+2

T=6 hours

Since you left home by 6:00 am, the time you will get to San Diego is 6 hours after that, i.e. 12 noon (Tucson time)

That is the answer.

4 0
3 years ago
The average of six positive integers starting with a is equal to b. What is the average of five consecutive integers ending with
kvasek [131]

The average of the five consecutive numbers ending with b in discuss when expressed in terms of a is; Choice D; a+3.

<h3>What is the average of five consecutive integers ending with b?</h3>

First, since it was given in the task content that the average of six positive consecutive odd integers starting with a is equal to b, it therefore follows that;

(a+a+2+a+4+a+6+a+8+a+10)/6 = b

6b=6a+30

b=a+5

Also, let the average of the consecutive intergers ending with b be denoted by; x.

(b+b-1+b-2+b-3+b-4)/5 = x

=(5b-10)/5

=b–2

The average, x=b – 2 (where b = a-5)

Ultimately, the value of the required average is; = a+5-2 = a+3.

Read more on average of integers;

brainly.com/question/24369824

#SPJ1

7 0
1 year ago
A set of magical wand prices are normally distributed with a mean of 50 dollars and a standard deviation of 4 dollars. A blackth
Anna11 [10]

Complete Question

A set of magical wand prices are normally distributed with a mean of 50 dollars and a standard deviation of 4 dollars. A blackthorn wand has a price of 45.20. What proportion of wand prices are lower than the price of the blackthorn wand? You may round your answer to four decimal places

Answer:

0.1151

Step-by-step explanation:

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score = $45.20

μ is the population mean = $50

σ is the population standard deviation = $4

We are solving for x < 45.20

Hence:

z = 45.20 - 50/4

z = -1.2

Probability value from Z-Table:

P(x<45.20) = 0.11507

Approximately to 4 decimal places = 0.1151

Therefore, the proportion of wand prices that are lower than the price of the blackthorn wand is 0.1151

8 0
3 years ago
If a car is traveling 75 miles per hour, how many feet will it travel in 10 seconds?
Alekssandra [29.7K]

Answer:

Step-by-step explanation:

speed=75 miles per hour

speed=\frac{75 \times 1760 \times 3 }{3600 } =110 ~ft~/ ~s

distance covered in 10 seconds=110×10=1100 ft

3 0
3 years ago
Read 2 more answers
Help pls itS BEEN 2 HOURS LUV U &lt;3
nataly862011 [7]

Step-by-step explanation:

Hey there!

The equation of a circle which passes through any point having centre (h,k) is;

( {x - h)}^{2}  + ( {y - k)}^{2}  =  {r}^{2}

In first blank ( x-_ ) keep "-2". In second blank (y - _ ) keep "4" and in last blank ( _ ) keep "36".

<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em>

7 0
3 years ago
Other questions:
  • 19.
    10·1 answer
  • I just need the coordinates and I'll draw the graphs.
    11·2 answers
  • A recent study considered the number of degrees awarded in certain regions of the world.
    10·1 answer
  • Jason started last week with $900 in his checking account. During the week, he wrote the checks below.
    15·2 answers
  • Ella has 27 apples if Ella uses three apples to make each tart how many Tarts can teller make​
    11·1 answer
  • Solving Equation Again... It is in the attachment!<br> ☺
    14·2 answers
  • Please only right answers no links or anything and please answer quick!!!ILL MARK BRAINLEST PLEASE QUICK QUICK QUICK QUICK QUICK
    14·1 answer
  • It takes Mia 49 minutes to complete 14 homework problems on average, how long did it take to solve each problem
    15·1 answer
  • Please help me GIVING AWAY ALL MY POINTS​
    11·1 answer
  • A and b together can do a piece of work in 8 days. If a alone can do the same work in 12 days, then b alone can do the same work
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!