3 years ago

Hi, I need help with equations :D

1 answer:

8 0

3(3) - (-8)/4 = 9 + 2 = 11 so (3,-8) is solution

3(4) - 4/4 = 12 - 1 = 11 so (4,4) is solution

answer
C. both ordered airs are solutions

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Seventeen out of 20 teens said they eat breakfast every morning. What is the reasonable prediction for the number of teens out o

konstantin123 [22]

Answer:

The correct answer is C. 1088

4 0

3 years ago

I need help with 1 & 2 tyvm

BabaBlast [244]

Answer:

1. x=17.5

2. x=77

Step-by-step explanation:

1. -x=-3x+35

=2x=35

x=17.5

2. -x/7+8=-3

=-x/7=-11

=-x=-77

x=77

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3 years ago

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Which of the following statements is false? A. A rectangle is an equiangular quadrilateral. B. Opposite sides of a parallelogram

Darya [45]

Answer:

Step-by-step explanation:

Choices A., B., and C. are always true.

Choice D. is true only for rectangles with congruent sides, which are squares.

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3 years ago

Es urgente ¡¡¡ si la MH de a y 4 es 6 y la MH de 8 y b es 12 calcula la MH de a y b

TiliK225 [7]

Answer:

Sabemos que:

$MH(x, y) = \frac{2xy}{x+y}$

y tenemos que:

$MH (a,4) = \frac{2*a*4}{a+4} = \frac{8*a}{a+4} = 6$

Con esto podemos encontrar el valor de a:

8*a/(a+ 4) = 6

8*a = 6*(a + 4) = 6*a + 24

8a - 6a = 24

2a = 24

a = 24/2 = 12.

Tambien sabemos que:

$MH(8,b) = \frac{2*8*b}{8+b} =\frac{16*b}{8+b} = 12$

Y de ahí podemos despejar b:

(16*b)/(b + 8) = 12

16*b = 12*(b + 8) = 12b + 96

16b - 12b = 96

4b = 96

b = 96/4 = 24

Entonces tenemos a = 12 y b = 24, y el MH de a y b es:

MH(12,24) = 2*12*24/(12 + 24) = 24*24/36 = 16

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3 years ago

What's the answer to the math problem 8r+4=10+2r

mart [117]

In order to solve for r you have to place all the number in one side. then isolate r ...... r=1

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3 years ago