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Elan Coil [88]
3 years ago
10

If 4.5 pounds of chocolate cost $10, how

Mathematics
1 answer:
allsm [11]3 years ago
3 0

I think 5.4

4.5÷10= 0.45

0.45x12=5.4

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Gabby's​ scores on her first 4 math test where 87, 92, 76 and 89. What is the minimum score Gabby needs to make on the 5th test
Ganezh [65]
She would need to make an 89 on her last test. I hope this helped ^^


What I did is I put a made a list in ascending order (Least to greatest). Next, I added a number starting from 80 and then counted up. I added every number together and divided it by 5 every time I changed the number. Finally I got to the number 89 and it totaled to be 85.
6 0
3 years ago
PLEASE HELP!!! Show your work too, please!
dimulka [17.4K]

Step-by-step explanation:

first fish tank: 95-4x

second fish tank: 40+5x

1. Define variable

The variable x represents the number of days.

2. Write the inequality

<em>95-4x=40+5x</em>

<em />

3. You probably don't need the answer but I am just going to solve.

The first fish tank will have less water than the second fish tank after 7 days.

<em>95-4x=40+5x </em>

<em>95-4(7)=40+5(7)</em>

<em>95-28=40+35</em>

<em>67=75</em>

<em>Since the first equation (95-4x) represents the first fish tank, and the second equation (40+5x) represents the second fish tank, the solution shows how the amount of water in the first fish tank is less than the amount of water un the second fish tank after 7 days.</em>

8 0
3 years ago
Read 2 more answers
Find the equation of a line that passes through the points (-1,3) and (3,5).
vekshin1

Answer:

y=1/2x+3.5

Step-by-step explanation:

this one was a bit trickier than the previous one, but i think that that answer is correct. i did the same thing i did to solve your last problem, solved for the slope, and then made a number line and marked the points given, drew a line through the two points, and found where the line intercepted the y axis.

8 0
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Which of the following expressions is the inverse of the function y=3x+4
zubka84 [21]
To find the inverse of a function, we swap x and y then solve for y
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x = 3y + 4
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x - 4 = 3y
Divide both sides by 3
\frac{x-4}{3} =y
7 0
3 years ago
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Which are true of the function f(x)=49(1/7)^x
Ira Lisetskai [31]

The Option (1),(4) and (5) are correct.

Step-by-step explanation:

The  function given to us  is : y= f(x) =49(1/7)^x

The following  statements  are true regarding the above function is

  • As you can see  that  the value of y(49)is defined for  all values of x , so the Domain is the set of all values of x , which is set of all real numbers.
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  • As x increased by 1, each y-value is one seventh of the previous y-value

8 0
3 years ago
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