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DerKrebs [107]
3 years ago
15

Amanda is 52 inches tall. Barry is 19 inches taller than Amanda. How

Mathematics
2 answers:
ElenaW [278]3 years ago
5 0

Answer:

Barry is 71 inches tall

Step-by-step explanation:

52 + 19 = 71

marusya05 [52]3 years ago
3 0
Just add them its 72
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Kelly drove north for 9 miles and then east for 12 miles at an average rate of 42 miles per hour to arrive at the town of Prime.
mr_godi [17]

Answer:

Step-by-step explanation:

This is one of the more interesting motion problems I've seen.  I like it!  If Kelly is driving north (straight up) for 9 miles, then turns east (right) and drives for 12 miles, what we have there are 2 sides of a right triangle.  The hypotenuse is created by Brenda's trip, which originated from the same starting point as Kelly and went straight to the destination, no turns.  We need the distance formula to solve this problem, so that means we need to find the distance that Brenda drove.  Using Pythagorean's Theorem:

9^2+12^2=c^2 and

81+144=c^2 and

225=c^2 so

c = 15.

Brenda drove 15 miles.  Now we can fill in a table with the info:

                d        =        r        x        t

Kelly     12+9               42                t

Brenda    15                45                t

Because they both left at the same time, t represents that same time, whatever that time is.  That's our unknown.

If d = rt, then for Kelly:

21 = 42t

For Brenda

15 = 45t

Solve Kelly's equation for t to get

t = 1/2 hr or 30 minutes

Solve Brenda's equations for t to get

t = 1/3 hr or 20 minutes

That means that Brenda arrived at the destination 10 minutes sooner than Kelly.

4 0
3 years ago
Which algebraic expression is a difference with two terms?
arlik [135]

Answer:

B)

Step-by-step explanation:

6x - 9

Here, 6x is a term and -9 is another term

5 0
3 years ago
A. 1/3 of 12 = 2/3 of ? <br> B. 1/3 of 90 = 2/3 of ?
almond37 [142]

Answer:

A.6

B.45

Step-by-step explanation:

2/3 is twice the value of 1/3, so we divide 12 & 90 by 2.

3 0
3 years ago
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Points A and B
Maurinko [17]

Answer:

The answer for the question is 11 and 12 I just got a test back and it was correct

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Whats the equation of a line with slope 3/5 that passes through the point (15,8)
Elden [556K]

Answer:

y=3/5x-1

Step-by-step explanation:

The formula you need to find this would be

(y-y1)=m(x-x1)

The y1 is your y point.

The x1 is your x point.

m is your slope.

Start by plugging in your numbers that they provide you.

(y-8)=3/5(x-15)

Now you need to distribute the slope to the terms inside the parenthesis next to it.

3/5(x)=3/5x

3/5(-15)= -9       Now you put those back into the equation.

(y-8)=3/5x-9

At this point you can get rid of the parenthesis around the y-8 since it is basically saying to take the term times 1.

To get y alone we not need to add 8 to both sides.

y-8=3/5x-9

+8          +8

y=3/5x-1

3 0
4 years ago
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