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galben [10]
3 years ago
13

Lisa hikes 9 miles in 2 hours. At this rate, how far does she hike in hours?

Mathematics
1 answer:
defon3 years ago
7 0
4.5 miles in 1 hour
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Please help, seriously confused
Rufina [12.5K]
Original height = original width = x mm

1. She made an enlarged copy...
height = 2x
width = 2x

2. She cut off a rectangle...
height = 2x
width = \frac{2}{3} *2x= \frac{4}{3}x

3.She doubled the width...
height = 2x
width = 2*\frac{4}{3}x = \frac{8}{3}x

height * width = area

2x * \frac{8}{3}x=139 \ 968  \\ \\ \frac{16}{3}x^2= 139 \ 968 \\\\ x^2=139 \ 968: \frac{16}{3}=139 \ 968 * \frac{3}{16}=  8 \ 748*3 = 26 \ 244 \\  \\ x= \sqrt{26 \ 244} = 162 \ mm

Original height was 162 mm 
6 0
3 years ago
The ratio of marbles to stones is 5 to 7 if there are 35 marbles how many stones is there?
icang [17]
5 : 7
Marbles : Stones

35/5 = 7
So stones
= 7 * 7
49

=35 : 49
3 0
3 years ago
Read 2 more answers
How do you solve y=3/4x+3 on a graph?
kow [346]
So by looking at this equation you should look to see it's key features which will help you graph the equation. the first key feature is the slope, the slope lets you know the angle at which the line will be, the slope in an equation will always be the number multiplied by x ( in this case it'd be 3/4). The second feature is the y intercept, the y intercept is where the equations line crosses the y axis, the y intercept in a graph will always be what is added or subtracted after the x (in this case it'd be 3).
To simplify what I said look at the following:
Slope: 3/4
Y intercept: 3
Hope this helps!
3 0
3 years ago
Read 2 more answers
Monique picked 32 quarters of beans how many pecks did she pick
NNADVOKAT [17]
Quarters equal 25 cents so multiply 25 x32
8 0
3 years ago
Find the distance between the points (-6, – 7) and (5. – 7).
QveST [7]

Answer:

11

Step-by-step explanation:

d=√(5-(-6))²+(-7-(-7))²

d=√(11²+0²)

d=11

5 0
3 years ago
Read 2 more answers
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