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skad [1K]
3 years ago
6

7. If a school has 70 computers in the ratio of 3 desktops for every 4 laptops, how many

Mathematics
1 answer:
stealth61 [152]3 years ago
6 0

Step-by-step explanation:

As ratio of desktops to laptops=3:4

Take no. of desktops= 3x

Take no. of Laptops=4x

Total no. of desktops+ Total no. of laptops = Total no. of computers

3x+4x=70

7x=70

x=10

Hence, the total no, of desktops= 3x

Hence, Total no. of desktops= 3×10

=30 desktops

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Please answer i need help quick
Serjik [45]

Answer:

(-2, 6)

Step-by-step explanation:

Since you want a 1 to 7 ratio, you want to divide the line into 2 parts, where one part has a length of 1 and the other has a length of 7. So the total length of the line is 8.

Start by looking at the difference in the X and Y coordinates.

X = | -4 - 12 | = | -16 | = 16

Y = | 7 - -1 | = | 8 | = 8

You could calculate the length of the line using pythagorian's theorem, but that's not needed. Simply use similar triangles. We have a right triangle with legs of length 16 and length 8. We want a similar triangle that is 1/8th as large (to get the desired 1 to 7 ratio). So divide both legs by 8, getting lengths of 16/8 = 2, and 8/8 = 1.

Now add those calculated offsets to point A.

A has an X coordinate of -4 and B has an X coordinate of 12 and the X coordinate for C must be between those limits. So calculate -4 + 2 = -2 to get the X coordinate for C.

The Y coordinate of A is 7 and the Y coordinate of B is -1. And since the Y coordinate must be between then, you have 7 - 1 = 6.

So the coordinates for C is (-2, 6)

8 0
3 years ago
Divide. Write the answer in simplest form. 3=6= 8<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B8%7D%20%20%5Cdiv%206"
oksano4ka [1.4K]
Hope this helps!! If u want me to answer any more questions just ask! Have a nice day!

7 0
2 years ago
Lewis is planning a cycling holiday.
galben [10]

Answer:

72 miles/day

Step-by-step explanation:

12 m/hr  *  6 hr / day  = 72 mi/day

8 0
2 years ago
Proportions in Triangles (8)
pishuonlain [190]

Answer:

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4 0
3 years ago
Read 2 more answers
the band knows 45. song. it play 12 songs in the first set, 15 song in the second set, and 11 songs in the last set. if no songs
Dennis_Churaev [7]

Answer:

7 songs

Step-by-step explanation:

12+15+11 is 38

45-38 is 7.

4 0
3 years ago
Read 2 more answers
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