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lisabon 2012 [21]
3 years ago
8

X/30 + X/40= 1 Solve for x

Mathematics
2 answers:
Svetllana [295]3 years ago
4 0

Answer:

17 1/7 I think

Step-by-step explanation:

slega [8]3 years ago
4 0

x=17.1

Step-by-step explanation:

\frac{x}{30}  +  \frac{x}{40}  = 1 \\  \frac{3x + 4x}{120}  = 1 \\  \frac{7x}{120}  = 1 \\  \frac{7x}{120} = 1 \\ 7x = 120 \\ x =  \frac{120}{7}   \\ x =17.1

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A plumber needs to drill a hole that is just slightly larger than 3/16 of an inch in diameter. Which measurement is the smallest
gogolik [260]

Answer: 5/16

Step-by-step explanation:  because the bottom is 16 and the others are bigger numbers

4 0
2 years ago
Every 20 seconds a sprinkler passes across a garden will it take more than an hour for the sprinkler to cross the garden 150 tim
Ksenya-84 [330]

Answer:

No

Step-by-step explanation:

If the sprinkler takes 20 seconds to cross the garden, and it crosses the garden 150 times, the total number of seconds it took can be calculated by multiplying 20 and 150. You get 3000 seconds, but you need to convert that to minutes to tell if it will take more or less than an hour. So divide 3000 by 60 (the number of seconds in 1 minute). Your answer is 50 minutes. And since 1 hour is 60 minutes, it doesn't take more than an hour to cross the garden 150 times.

4 0
2 years ago
Every person in a certain group is either a Dodgers fan or a Yankees fan, but not both. The ratio of Yankees fans to Dodgers fan
Deffense [45]

Answer:

  E)  176

Step-by-step explanation:

The difference in ratio units is 5 -3 = 2. If one ratio unit changes sides, the ratio will be 4 : 4, or 1 : 1. Then one ratio unit represents 22 group members.

There are a total of 5+3 = 8 ratio units, so there are ...

  8 × 22 = 176

people in the group.

_____

<em>Check</em>

The original group has 5 × 22 = 110 Yankees fans and 3 × 22 = 66 Dodgers fans, for a total of 110+66 = 176 group members. If 22 switch sides, there will be 110-22 = 88 Yankees fans and 66+22 = 88 Dodgers fans, making the ratio ...

  88 : 88 = 1 : 1

7 0
3 years ago
……………………868685758584984444
nydimaria [60]
???444489485857586868........................
7 0
2 years ago
Read 2 more answers
Please answer !!!!!!!! Will mark brainliest whoever answers correctly !!!!!!!!
kirill115 [55]

Answer:

g(q) = 5/8q

Step-by-step explanation:

-7q + 12r = 3q - 4r

Add 4r to each side

-7q + 12r+4r  = 3q - 4r+4r

-7q +16r = 3q

Add 7q to each side

-7q+7q +16r = 3q+7q

16r = 10q

Divide each side by 16

16r/16 = 10q/16

r = 5q/8

g(q) = 5/8q

5 0
3 years ago
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