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ryzh [129]
3 years ago
15

Find the number that makes the ratio equivalent to 1:2. 9:

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
5 0

Answer:

9:18

Step-by-step explanation:

1:2 means that you have to multiply the first number by 2 to get the second number. Therefore, you have to multiply 9 by 2, which is equal to 18. Therefore, it would be 9:18.

If this has helped please mark as brainliest

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( x + 3 ) + ( − 7 x − 1 )
lora16 [44]

Answer:

-6x +2

Step-by-step explanation:

( x + 3 ) + ( − 7 x − 1 )

Combine like terms

x -7x   +3 -1

-6x +2

8 0
2 years ago
Read 2 more answers
Politics Post has published a total of 15 articles this month. If 12 of the articles are about candidates for an upcoming electi
vitfil [10]

Answer:

80%

Step-by-step explanation:

12÷15= .8

.8=80%

..............

7 0
3 years ago
Traveling math word problem - thank you! :)
Anni [7]

<u>We are given:</u>

car and train leave at the same time

average velocity of car = 50 miles/hour

average velocity of train = 70 miles/hour

train arrives 2 hours early

<u>Assuming variables and making equations!</u>

let the time taken by the train = t hours

since the car arrived late, it took more time as compared to the train

time taken by the car = t + 2 hours

since the distance from Pasadena to Sacramento doesn't change, both the vehicles covered the same distance, d

<u>Distance travelled by the car:</u>

d = 50 \frac{miles}{hour} * (t+2) hours                             [distance = velocity * time]

d = 50(t+2) miles

rewriting in terms of t

t = \frac{d-100}{50}

<u>Distance travelled by the train:</u>

d = 70 \frac{miles}{hour} * t hours

d = 70t miles

rewriting in terms of t

t = \frac{d}{70}

now we have two expressions for t, both of which are equal because t is just the time taken by the train

<u>Finding the distance:</u>

<u></u>t = \frac{d-100}{50}<u></u>

<u></u>t = \frac{d}{70}<u></u>

because t is the same:

\frac{d-100}{50} = \frac{d}{70}

\frac{d-100}{5} = \frac{d}{7}

7(d - 100) = 5(d)

7d - 700 = 5d

(7d - 5d) - 700 = 0                                        [subtracting 5d from both sides]

2d = 700                                                       [adding 700 on both sides]

d = 350 miles                                               [dividing both sides by 2]      

The distance between Pasadena and Sacramento is 350 miles!

7 0
2 years ago
Subtract 55 from the sum of 9g and 4 when g=8
FinnZ [79.3K]

Answer:

21

Step-by-step explanation:

(9g+4)-55=

(72+4)-55=

76-55=

21

6 0
3 years ago
Seven less than four times a number, x, is 37.<br> What is a possible solution of x?
dalvyx [7]
4x-7=37
4x=37+7
4x=44
4x/4=44/4
X=11
8 0
3 years ago
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