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3 years ago

What is a constant term or variable term that makes 5x + 20 = 5x + ? have one solution?

Mathematics

1 answer:

In-s [12.5K]3 years ago

6 0

Answer:

It would be 20

Step-by-step explanation:

because 5x+20 = 5x +

it would have to be 20

to have 1 solution

You might be interested in

(8x +6) = (8x +6) = 8x= x =

dem82 [27]

Step-by-step explanation:

8x +6° +118° = 180° ( linear pair)

=> 8x = 180°-124°

=> 8x = 56°

=> x = 7°

hope this helps you.

7 0

3 years ago

Plz help!!!!!!!!!!!!!!!!!

Andrews [41]

Perpendiculars are any lines that intersect to make or forms a right angle.

8 0

3 years ago

Alan wants to bake blueberry muffins and bran muffins for the school bake sale. For a tray of blueberry muffins, Alan uses 1/3 c

True [87]

So we know there are 12 eggs and they will be distributed like this:

12=x2+y1
and 4 cups of flour:
4=1/3x+1/2y

let's see if we can find a solution in which all the materials are used:
12=x2+y1
4=1/3x+1/2y//*6

12=2x+y
24=2x+3y//*6

substract from each other:
12=2y
y=2
12=2x+y
12=2x+2
10=2x
x=5

So if nothing is wasted, he can make 5 blueberry muffins (making 12*5=60) and 2 bran muffins (2*9=18), together 78 dollars,

would it be better if instead of the bran muffins he did blueberry muffins (which are more expensive?)
for the branberry muffins he will used the double amount needed for 1: so 1 cup of oil and 2 eggs. From this he can only make 1 tray of blueberry muffins (and some oil will be left over), which will cost 12 dollars, which is less than 18

so he better make 6 blueberry and 2 bran trays

6 0

3 years ago

A random sample is selected from a normally distributed population. The following sample statistics are obtained: n = 20, = 30,

Flura [38]

Answer:

b) The margin of error is approximately 3.24

e) The critical value is 1.7921.

Step-by-step explanation:

Step(i):-

Given sample size 'n' =20

Given sample standard deviation 's' = 10

 Margin of error 

The margin of error is determined by

 $M.E = \frac{t_{\alpha } S.D }{\sqrt{n} }$ 

The level of significance ∝ =0.95

The degrees of freedom = n-1 = 20-1=19

t₀.₉₅ = 1.729

$M.E = \frac{1.729 X10 }{\sqrt{20} }$

Margin of error = 3.866

Step(ii):-

 Margin of error 

The margin of error is determined by

 $M.E = \frac{t_{\alpha } S.D }{\sqrt{n} }$ 

Given another sample size n =30

The level of significance ∝ =0.95

The degrees of freedom = n-1 = 30-1=29

t₀.₉₅ = 1.70

$M.E = \frac{1.7021 X10 }{\sqrt{30} } =3.24$

Margin of error = 3.24

5 0

3 years ago

Could anyone please help me find k divided by 9 = 12 as well as 84n = 504 and 6 = m over 148? I need explanations...

Lana71 [14]

k / 9 = 12
Multiply each side of the equation by 9 : k = 108

84 n = 504
Divide each side of the equation by 84 : n = 6

6 = m / 148
Multiply each side of the equation by 148 : 888 = m

4 0

4 years ago