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Free_Kalibri [48]
1 year ago
7

Solve each system of equations 3x + 2y = 26 3x - 2y = 10 Ordered pair

Mathematics
1 answer:
MrMuchimi1 year ago
6 0

Let's solve the following system of equations

\begin{gathered} 3x+2y=26 \\ 3x-2y=10 \end{gathered}

Eq 1 + Eq 2

3x+2y+3x-2y=26+106x=36x=6

Now for y

y=\frac{26-3x}{2}y=\frac{26-3\cdot6}{2}y=\frac{8}{2}y=4

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those are currency exchange rates 1 us dollar = 7.76 hk dollars 1 us dollar =1.47 nk dollars work out the value of 1000 hk dolla
Alik [6]

Answer: 1000 HK dollars has the same value as 188.15 NZ dollars.

Step-by-step explanation:

We know that:

1 US dollar = 7.76 HK dollars

1 US dollar = 1.46 NZ dollars.

We have 1000 HK dollars, and we want to know the value in NZ dollars.

First, let's rewrite the 1000 HK dollars in US dollars.

Here we use the relation:

1 US dollar = 7.76 HK dollars

Then:

1 = (1 US dollar/7.76 HK dollars)

Then we can write:

1000 HK = (1000 HK)*1 = (1000 HK)*( (1 US /7.76 HK ))

1000 HK = (1000 HK/7.76 HK)* 1 US = 128.87 US

1000 HK  = 128.87 US

Now we can use the relationship:

1 US =  1.46 NZ

Then:

1 = (1.46 NZ)/(1 US)

So we can rewrite:

128.87 US = (128.87 US)*1 = (128.87 US)*( (1.46 NZ)/(1 US))

128.87 US = (128.87 US/1 US)*1.46 NZ = 188.15 NZ

Then:

1000 HK = 128.87 US = 188.15 NZ

So we can conclude that 1000 HK dollars has the same value as 188.15 NZ dollars.

5 0
2 years ago
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
finlep [7]

Answer:

The speed of a car is x miles per hour.

The total distance the car travels in

30 minutes is y. ....>>> y = 0.5x

The cost to produce a table, y, is two

times the cost to produce a chair, x.  ..>  y = 2x

The time required to bake a chocolate

muffin, y, is 2 minutes more than the

time required to bake a vanilla muffin, x.....>> y = x + 2

Tina’s age, y, is 5 years more than

her brother Tim’s age, x.  .......>> y = x + 5

Step-by-step explanation: The only really tricky one is the "speed of the car ..."  because the speed is given in miles per<u> hour</u> and the time is given in <u>minutes</u> so that is 0.5 hour times time

Otherwise, "times" means multiplication and "more than" means addition.

8 0
2 years ago
1. Represent real world problems
tekilochka [14]
160 feet long most likely
3 0
3 years ago
The leftmost digits of rwo nunbers are 8 and 3 which one is greater
makvit [3.9K]
EIGHT WOULD BE GREATER

7 0
3 years ago
What is the slope of the line that contains these points?
kati45 [8]

Answer:

m=-7

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from chart.</em>

Point (39, 36)

Point (40, 29)

<u>Step 2: Find slope </u><em><u>m</u></em>

  1. Substitute:                    m=\frac{29-36}{40-39}
  2. Subtract:                       m=\frac{-7}{1}
  3. Divide:                          m=-7
8 0
3 years ago
Read 2 more answers
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