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Softa [21]
2 years ago
13

Help please please help me I really really need help

Mathematics
1 answer:
tester [92]2 years ago
6 0

Answer:

(-3, -2)

Step-by-step explanation:

To find the solution of two functions, you need to know at which x and y value they are equal. So solve for x and y when 1/3x - 1 = 2x + 4

1/3x - 1 = 2x + 4

First, subtract 2x from both sides.

-5/3x - 1 = 4

Add one to both sides.

-5/3x = 5

Multiply both sides by the reciprocal of -5/3 (3/-5)

x = -3

Then, substitute x into one of the equations to get y.

1/3(-3) - 1

-1 - 1 = -2

So drag the dot to the point (-3, -2)

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Please give answer of 6 number​
Irina18 [472]

Answer:

7,500

Step-by-step explanation:

Let's solve this problem step-by-step. The library had 1,500 books in 2011. The ratio of books in 2011 and in 2012 is 1:2. Therefore, let the number of books in 2012 be x.

We have the following proportion:

\frac{1}{1,500}=\frac{2}{x},\\x=2\cdot 1,500=3,000

Therefore, there were 3,000 books in 2012. The ratio of books in 2012 and in 2013 is 2:5. Let the number of books in 2013 be y.

We have:

\frac{2}{3,000}=\frac{5}{y},\\2y=5\cdot 3,000,\\2y=15,000\\y=\boxed{7,500}

Therefore, there were 7,500 books in 2013.

8 0
3 years ago
Read 2 more answers
Mrs.jacobson wants to order toy instruments to give as prizes to her class. the table shows the prices for various order sizes.
anzhelika [568]
First let as solve all unit pirce
whistles 21.25 / 25 = $ 0.85 per unit
36 / 50 = $ 0.72 per unit
60 / 80 = $ 0.75 per unit
kazoos
10 / 25 = $ 0.4 per unit
18.50 / 50 = $ 0.37 per unit
27.20 / 80 = $ 0.34 per unit
a.) $ 0.85 - $ 0.72 = $ 0.13
b.) 10 / 25 = $ 0.4 per unit
c.) he must order 80 kazoos she should order
5 0
3 years ago
A right triangle and some of his measurements are shown in the diagram based on the measurements shown in the diagram what is T
True [87]
I don’t really know this exact method
3 0
3 years ago
Find the value of n?
Svet_ta [14]

Answer:

n=q^2

Step-by-step explanation:

8 0
3 years ago
A nursery has 15 bags of topsoil. Each planter holds 1/8 of a bag.
Svetlanka [38]

Answer:

120 planters can be filled with topsoil.

Step-by-step explanation:

Since each planter can hold 1/8th of a bag of topsoil, this means that one bag of topsoil can fill up 8 planters.

15 x 8 = 120, so this means that 120 planters can be filled with topsoil.

:)

4 0
2 years ago
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