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2 years ago

A survey conducted at an ice cream store asked only mothers

Mathematics

1 answer:

Alecsey [184]2 years ago

3 0

Answer:

B. Biased Sample.

Step-by-step explanation:

The population is not only made of mothers, but there are fathers, sons, daughters, brothers and sisters, and a lot of other people. By selecting only mothers, it gears the survey to be biased towards a certain type of thinking.

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PLSSSSSS HELP BRAINLIST

Helga [31]

Answer:

The step 4 is not what he should have done. But the wrong is step 5, because if he added -2x both sides, it would give the following equation:

$x-12=-4x+6$

and not $x-12=6$

Note that in step 4 he should have added 2x and not -2x to both sides, but we still have the equality. The problem is that step 5 is totally wrong.

I don't know what answer is expected to this question, but I would mark step 5, because this is mathematically wrong.

Solving the equation

$3(x-4)=-4-2(x-5)$

Using distribution

$3x-12=-4-2x+10\\3x-12=-2+6$

Add $2x$ both sides

$3x-12+2x=-2x+6+2x$

$5x-12=6$

Add 12 both sides

$5x-12+12=6+12\\5x=18$

Divide both sides by 5

$x=\frac{18}{5}$

4 0

3 years ago

If a rectangle measures 12 meters by 16 meters, what is the length, in meters, of the diagonal of the rectangle?

Alexxandr [17]

Answer: it’s 20m long

Step-by-step explanation:

I can’t explain .—.

6 0

2 years ago

Read 2 more answers

7/8=?/48 a.6 b.13 c.1 d.42

ryzh [129]

D) you just multiply the numerator and denominator by 6 to get an equivalent fraction

7 0

3 years ago

Read 2 more answers

Write the equation of the line in slope- intercept form: 9y-27x=18

PilotLPTM [1.2K]

The slope-intercept form:

$y=mx+b$

$9y-27x=18$ add 27x to both sides

$9y=27x+18$ divide both sides by 9

$\boxed{y=3x+2}$

4 0

2 years ago

Juanita wants to buy 12.5 pounds of stones to decorate her garden. The stone normally sells for $1.80 a pound. The salesman offe

anastassius [24]

Step-by-step explanation:

$1.80 per pound

The amount she's supposed to buy it is

1.80 × 12.5 = $22.5

She paid $21.25 for the 12.5 pounds, that means she saved

$22.5 - $21.25 = $1.25

the amount she saved per pound is

1.25/12.5 = $0.1 per pound

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3 years ago