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kondor19780726 [428]
3 years ago
12

What is the sum of one-half u subtracted from 3 times u

Mathematics
1 answer:
nasty-shy [4]3 years ago
6 0

Answer:

1+(3×u-1÷2u)=1+(5u÷2)=(2+5y)÷1

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I have some cheese. I used
hram777 [196]
<h3>Answer:     2500 grams</h3>

============================================

Work Shown:

A = amount of grams of cheese you had originally

B = (2/5)*A = amount of cheese you use up after day 1

C = (3/5)*A = amount of cheese you have left over after day 1

note how B and C add back up to 'A'.

This is because 2/5+3/5 = 5/5 = 1, so,

B+C = (2/5)A+(3/5)A = (2/5+3/5)A = 1*A = A

--------------

D = (2/5)*C = amount of cheese you use up after day 2

E = (3/5)*C = amount of cheese left over after day 2

the variables D and E add up to C

we are told that there are 900 grams of cheese left after day 2, so E = 900

--------------

E = (3/5)*C

(3/5)*C = E

(3/5)*C = 900 ... Plug in E = 900

3C = 900*5 .... multiply both sides by 5

3C = 4500

C = 4500/3 .... divide both sides by 3

C = 1500

This means you had 1500 grams of cheese after day 1

-------------

C = (3/5)*A

(3/5)*A = C

(3/5)*A = 1500 ... plug in C = 1500

3A = 1500*5 ... multiply both sides by 5

3A = 7500

A = 7500/3 .... divide both sides by 3

A = 2500

-----------

<h3>You started off with 2500 grams of cheese.</h3>

After day 1, you use up (2/5)*2500 = 1000 grams of cheese and have 2500-1000 = 1500 grams left over.

After day 2, you use up (2/5)*1500 = 600 grams of cheese and have 1500-600 = 900 grams left over.

The answer is confirmed.

6 0
4 years ago
Tickets to the zoo cost $15 for adults and $11 for children. The school has a budget of $1500 for the field trip. An equation re
Alika [10]

It is not possible for 120 kids and 20 adults to go on the trip, but 120 students can go with a maximum of 12 adults so the expense of the trip can fall in the school's budget.

We know that tickets of the zoo cost $15 for adults and $11 for children.

The equation representing the budget for the trip is 15x + 11y = 1500.

where, x is the no. of adults and y is the number of children that are travelling.

If x = 20 and y = 120 then,

15(20)+11(120)=300+1320=1620 which is out of the budget of the school.

If 120 students want to go to school then, no. of adults that can travel can be determined as

15 x + 11 (120 )<= 1500

15x  <=1500-1320

15x<=180

x <=12

Therefore, we can conclude that 120 students and 20 adults cannot travel for the trip but 120 students can travel with a maximum of 12 adults among with them as it will cost school the trip in the budget.

Learn more about Linear Inequality here brainly.com/question/11897796

#SPJ1

4 0
1 year ago
The line of best fit for a scatter plot is shown: What is the equation of this line of best fit in slope-intercept form?
sukhopar [10]
First find the slope.

We know these two points are in the line: (0,8) and (6,5)

\sf Slope = \frac{y_2-y_1}{x_2-x_1} = \frac{8-5}{0-6} = \frac{3}{-6} = \boxed{-\frac{1}{2}}

The slope is -1/2. The y-intercept can be found when x = 0. And we know that the point (0,8) is on the line and x = 0, therefore the y-intercept is 8.

Plugging this into the slope-intercept form which is

y = mx + b, where m is the slope and b is the y-intercept, we get:

y = (-1/2)x + 8

6 0
4 years ago
Read 2 more answers
Marlene is buying clothes online. she can pay one fee for the shipping of $8, and can get shirts on sale for $12 each. if her to
goldfiish [28.3K]

Answer

8

Step-by-step explanation:

104 - 8, and then divide 96 by 12 equals 8

7 0
3 years ago
Compare the linear functions expressed below by data in a table and by an equation.
kondor19780726 [428]

Answer:

b,c,e

Step-by-step explanation:

7 0
3 years ago
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