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Vinvika [58]
3 years ago
5

7TH GRADE MATH- Please solve the one with the star- question 18. Thank you!

Mathematics
1 answer:
Bogdan [553]3 years ago
5 0

Answer:

27.5 pages per hour.

Step-by-step explanation:

Santino read 5\frac{1}{2} pages in 12 minutes

In 60 minutes he read:

\frac{60}{12} × 5.5 = 27.5 pages

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At a fast food​ restaurant, 10 cheeseburgers​ w/onion and 5 orders of french fries contain 6900 calories. 5 cheeseburgers​ w/oni
Leona [35]

Write the equations,

10 c + 5 f = 6900

5c + 3f = 3660

Double,

10c + 6f = 7320

Subtract,

f = 7320 - 6900 = 420

10 c = 6900 - 5f = 6900 - 2100 = 4800

c = 480

Answer: Cheeseburger 480 calories, fries 420 calories

Check:

10 (480) + 5 (420) = 4800 + 2100 = 6900 good

5(480) + 3(420) = 2400 + 1260 = 3660 good

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3 years ago
These tables of values represent continuous functions. For whichfunction
mrs_skeptik [129]

I think it's B because it contains the highest numbers

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aliina [53]
The awnser is number b
4 0
3 years ago
. Waipio Rd in Honokaa, Hawaii, is one of the steepest roads in the world. It rises 450 ft over a horizontal distance of 1,000 f
Deffense [45]

Answer: 50%

Step-by-step explanation:

From the question, we're given the information that Waipio Rd in Honokaa, Hawaii, is one of the steepest roads in the world and that it rises 450 ft over a horizontal distance of 1,000 ft.

Therefore, the percentage grade of this hill will be calculated as the height over the length and this will be:

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= 50% to nearest tenth.

8 0
3 years ago
Solve for x in both triangles
GrogVix [38]

Answer:

Step-by-step explanation:

so for the triangles in 7)   they angles are the same in each, that's what the lines are saying,  that they are the same angles, and because the angle are the same, the triangles are just a scale of each other we can say that the X side is just a ratio of the other triangle , or

\frac{6}{12} = \frac{10}{x}

now just solve for X

\frac{12}{6} * \frac{6}{12} = \frac{10}{x} * \frac{12}{6}

x = 120/6

x=20

_______________________________

for the triangles in 8)  same thing

\frac{x}{3} =  \frac{14}{21}

\frac{3}{1} * \frac{x}{3} =  \frac{14}{21} * \frac{3}{1}

X = \frac{14}{7}

X = 2

3 0
2 years ago
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