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Contact [7]
3 years ago
6

Pls help me with this…

Mathematics
1 answer:
Paladinen [302]3 years ago
5 0
3
The answer is 3
The answer is 3
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An H0-scale model railroad engine is 9 inches long. The H0 scale is 87 feet to 1 foot. How long is a real engine?
Semmy [17]

The real engine is 65.25 feet long

<h3>How to determine the length?</h3>

The scale is given as:

Scale = 87 feet to 1 foot

The scale length is given as

Scale length = 9 inches

Convert inches to feet

Scale length = 9/12 feet

The actual length is then calculated as:

Actual = 87 * 9/12 feet

Evaluate

Actual = 65.25 feet

Hence, the real engine is 65.25 feet long

Read more about scale ratios at:

brainly.com/question/16192120

#SPJ1

7 0
2 years ago
Nora and Lila are reading the same novel for book club. Nora is on page 128 and plans to read 8 pages per day until the next clu
kicyunya [14]

Answer:

- They will be on the same page after 6.5 days or 6\frac{1}{2} days.

- They will be on page 180.

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

y=mx+b

Where "m" is the slope and "b" is the y-intercept.

You know that Nora plans to read 8 pages per day until the next club meeting and she is on page 128.

With this information you can write the following equation of the line in Slope-Intercept form to represent the number of the page "y" she will be on after "x" days:

y=8x+128

Know that Lila is on page 102 and plans to read 12 pages per day until the next club meeting, you can write this linear equation that represent the number of the page "y" she will be on after "x" days:

y=12x+102

Since they will be on the same page after "x" days, make both equations equal and solve for "x":

8x+128=12x+102\\\\26=4x\\\\x=6.5

Substitute that value into any original equation the same page they will be on after 6.5 days (or 6\frac{1}{2} days):

y=12(6.5)+102\\\\y=180

6 0
3 years ago
Name the first three numbers in this sequence <br> _ _ _ 80, 160,320,640,1280
Maksim231197 [3]

Answer:

10, 20, 40

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Help plzzzzzzzzzzzzz
Vaselesa [24]
To know which point achieve min of 2x+2y, we need to test these four points:

0,7
2*0+2*7=14

3,7
2*3+2*7=6+14=20

6,3
2*6+2*3=12+6=18

6,0
2*6+2*0=12

so the point (6,0) is the point that satisfies the minimum value of 2x+2y



hope that helps
<span />
3 0
4 years ago
Hayden is growing bacteria in two different solutions. Both populations start with a single bacteria. She records the number of
Tanya [424]
They are functions because they have the variables
4 0
3 years ago
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