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WARRIOR [948]
3 years ago
13

Solve the

Mathematics
2 answers:
melisa1 [442]3 years ago
7 0
<h3>5 ( 7 -  a) - 3 ( a + 4 ) - 4 = 4 ( a - 3 ) + 7</h3><h3>35 - 5a - 3a - 12 -4 = 4a - 12 + 7</h3><h3>- 5a - 3a -12 - 4 + 35 = 4a -12 + 7 </h3><h3>- 8a + 19 = 4a -5</h3><h3>- 8a - 4a = - 5 + 19</h3><h3>- 12a = 14</h3><h3>a = 14 / - 12 </h3><h3>a = 1.66666666666667</h3><h3>a = 1.67</h3>

hope that helps !

<h3 />
jekas [21]3 years ago
6 0

Answer:

35-5a-3a-12-4=-8a+19

4a-12+7=4a-5

Unequal

Step-by-step explanation:

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Jose paid 45.00$ for 5 movie tickets . EACH ticket cost the same amount . What was the cost of each movie ticket in dollars ?
MA_775_DIABLO [31]

Answer:

$9

Step-by-step explanation:

divide 45 and 5, you get 9

5 0
3 years ago
Read 2 more answers
Line a is parallel to line b, m∠1=2x +44, and m∠5x+38. Find the value of x.
Soloha48 [4]

2x + 44 = 5x + 38
5x - 2x = 3x
44 = 3x + 38
44 - 38 = 6
6 = 3x
2 = x

5 0
3 years ago
Y=x^2-2x-1 and y=-3x+5 solved algebraically
eduard

Answer:

Step-by-step explanation:

y=x²-2x-1

and y=-3x+5

x²-2x-1=-3x+5

x²+x-6=0

x²+3x-2x-6=0

x(x+3)-2(x+3)=0

(x+3)(x-2)=0

x=-3,2

when x=-3

y=-3×-3+5=9+5=14

when x=2

y=-3×2+5=-6+5=-1

so solutions are (-3,14) and (2,-1)

3 0
3 years ago
The following multiple regression printout can be used to predict a person's height (in inches) given his or her shoe size and g
alisha [4.7K]

Answer:

a. 8.95

b. it is

c. yes it belongs

d. males are 2.574 taller than females on average.

Step-by-step explanation:

GIven the regression outpuit that we have in this question, the value of the t test statistics for the shoe size can be solved as

a. test statistic = 1.164/0.13

t test = 8.95

b. the regression coefficient of shoe size is 1.164, this is statistically significant

c. Yes the variable shoe size does belong to the model.

d. The regression coefficient of gender shows that on the average, while holding other variables constant, males are 2.574 inches taller than the their female counterparts.

8 0
3 years ago
Multi-step K is the midpoint of JL, JL=4x-2, and JK=7. Find x, KL, and JL
ddd [48]
If K is midpoint of JL then JK = 0.5JL

JL = 4x - 2; JK = 7

The equation:
0.5(4x - 2) = 7
2x - 1 = 7      |add 1 to both sides
2x = 8        |divide both sides by 2
<u>x = 4</u>

<u>JL</u> = 4(4) - 2 = 16 - 2 = <u>14</u>

<u>KL</u> = JK =<u> 7</u>
7 0
3 years ago
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