MATHEMATICS MIDDLE SCHOOL

Fourteen less than five times a number is three themes the number

Answers

Answer 1

Answer:

Let x = the number

5x-14 = 3x

-14 = 3x-5x

-14 = -2x

-14/(-2) = x

7 = x

The number is 7.

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9(3/5x +19)
ddddddddddddddddddddddddddddddddddddddddddddddddddddddddd

Answers

Answer:

I cannot awnser this question if it just shows d's, I am sorry.

-_-

The price of oil recently went from $9.20 to $11.50 per case of 12 quarts. Find the ratio of the increase in price to the original price.The ratio is
(Type a simplified fraction)

Answers

Answer:1234

Step-by-step explanation:123456

Whats 5,890 round to the nearest thousand

Answers

5,890 rounded to the nearest thousand is 6,000
remember, 5 and up, the number next to it goes up, 4 or lower, the number next to it stays the same, hope i helped! :D

5890 = 6000 round because the 8 in hundreds are nearer to 1000 than 100 down :)
Near to ones : 0, 1, 2, 3, 4
Near to tens: 5, 6, 7, 8, 9

half of Robert's piece of wire is equal to 2 thirds of Maria's wire. The total lenght of their wire is 10 feet. How much longer is Robert's wire than Maria's?

Answers

You have a system of equations here. R=Robert's piece of wire M=Maria's piece of wire

R/2=2M/3
and
R+M=10

With some basic algebra, you can make that first equation into
R=4M/3
then use substitution to get
(4M/3)+M=10
Then solve for M
(4M/3)+(3M/3)=10
7M/3=10
7M=30
M=30/7

so Maria's wire is 30/7 feet long. With a little more substitution, we can get:
R+(30/7)=10
R=10-(30/7)
R=(70/7)-(30/7)
R=40/7 feet long

So your final answer would be that Robert's wire is 10/7 feet longer than Maria's (which you could always put into decimal form)

Robert's wire is $1(3)/(7)$ longer than Maria's wire

Further Explanation

Let's say

Robert's wire = x

Maria's wire = y

From the problem given we know that:

$\boxed {(1)/(2) x = (2)/(3)y }\n \boxed {x + y = 10 }$

$\boxed {x = 10-y }$

So we get two equations:

$\boxed {(1)/(2) x = (2)/(3)y }\n\boxed {(1)/(2) (10-y) = (2)/(3)y } \n\boxed {5 - (1)/(2)y = (2)/(3) y }\n\boxed {5 = (2)/(3)y + (1)/(2)y }\n\boxed {5 = (7)/(6) y }\n\boxed { y= (30)/(7) }$