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Luda [366]
4 years ago
5

Write a system of equations to represent this situation. Use x to represent Portugal and y to represent brazil

Mathematics
1 answer:
Marat540 [252]4 years ago
4 0

Answer:

P + B = 14130P + 150B = 1920

Step-by-step explanation:

P + B = 14130P + 150B = 1920

P = 14 - B  

130(14-B) + 150 = 1920

20B = 100

B = 100/20 = 5  

P = 14 - 5 = 9

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7. Quadrilateral MNPQ has vertices M(4,0), N(0,6), P(-4,0) and Q(0, -6). Determine whether
kirill [66]

Answer:

SQUARE

Step-by-step explanation:

If Quadrilateral MNPQ has vertices M(4,0), N(0,6), P(-4,0) and Q(0, -6).

Find the following MN,  NP, PQ and MQ

Using the formula for calculating the distance between two points

MN = √(6-0)²+(0-4)²

MN = √6²+4²

MN = √36+16

MN = √52

MN = 2√13

NP = √(0-6)²+(-4-0)²

NP = √6²+4²

NP = √36+16

NP = √52

NP = 2√13

PQ = √(-6-0)²+(0-(-4))²

PQ = √6²+4²

PQ = √36+16

PQ = √52

PQ = 2√13

MQ = √(-6-0)²+(0-4)²

MQ = √6²+4²

MQ = √36+16

MQ= √52

MQ = 2√13

Since the length of all the sides are equal, hence the shape is a SQUARE

4 0
3 years ago
Find each equation with the correct solution​
stepladder [879]

Answer:

15;9;-8

Step-by-step explanation:

1. 5/3x-3=2/3x+12

x=15 once you combine like terms

2. 5x+35-3x+12=7x+2

2x+47=7x+2

5x=45

x=9

3. 12x+20-3=9x-7

12x+17=9x-7

3x=-24

x=-8

3 0
3 years ago
Ambrose and Kaitlin are taking a pottery class. Kaitlin makes a bowl every 13 minutes. Ambrose makes a bowl every 7 minutes. If
disa [49]

Step-by-step explanation:

91minutes

13 x = 91 minutes

5 0
3 years ago
Y=(x-4)/(x*x)-11x+28
klio [65]
Y=(x-4)/2x-11x+28
y=(x/2x)-(4/2x)-11x+28
y=0.5x-2x-11x-28
1. subtract like terms
2. add 28 on both sides
3. so on and so forth...
3 0
4 years ago
The coordinates of the vertices of a triangle are A(3, 3), B(6, 3), and C(6, 6). The coordinates of the vertices of its image ar
MariettaO [177]
It would reflect over the x-axis and then reflect over the y-axis
6 0
3 years ago
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