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3 years ago

Identify the value of x that makes each pair of ratios equivalent.

Mathematics

1 answer:

AveGali [126]3 years ago

3 0

Answer:

a.3

Step-by-step explanation:

2:x and 12:18

We need to get from 2 to 12 and 3 to 18

2* something = 12 x* something = 18

Divide by 2

something =12/2

something =6

x*6 = 18

x = 18/6

x=3

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A jar contains 10 red marbles and 20 blue marbles. if one red marble is selected and then placed back into the jar, what is the

Serggg [28]

You have a 30% chance of getting a blue marble.

6 0

3 years ago

Triangle WXY has coordinates W(1, 5), X(1, 1), and Y(5, 1). Which of the following sets of points represents a dilation of trian

timofeeve [1]

The correct answer for the question shown above is the second option, the option B, which is: B. W'(2, 10), X'(2, 2), Y'(10, 2)
The explanation is shown below: As you can see, the original triangle has the following coordinates W(1, 5), X(1, 1), and Y(5, 1); the triangle must be dilated by a common scale factor, so if you analize the option B, you can notice that the triangle was dilated by a scale factor of 2.

3 0

3 years ago

hakeem's frog made 3 quick jumps. the first was 1m. the second was 85cm and the third was 400mm. what was the total length in cm

azamat

1m=100cm
85 cm
400 mm=40 cm
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4 0

3 years ago

10 more than the quotient of a number and 8 is at least 12. - how would I write this in a "algebraic expression"?

Sonja [21]

X - the number
the quotient of the number and 8 = x/8
10 more than the quotient of the number and 8 = (x/8)+10
10 more than the quotient of the number and 8 is at least 12 = (x/8)+10≥12

$\frac{x}{8}+10 \geq 12$

4 0

3 years ago

I need answers!!!!!!!!

aleksandrvk [35]

Answer:

a) 4.4583 b) Fiona

Step-by-step explanation:

First find the average of the numbers by adding them all together then dividing them by the amount of numbers given:

$(85 + 88 + 90 + 91 + 93 + 96 + 97 + 97 + 98 + 98 + 99 + 105)\div12= 1137\div12= 94.75$

Then find the difference between each number and the answer you got

$(85 - 94.75) + (88 - 94.75) + (90 - 94.75) + (91 - 94.75) + (93 - 94.75) + (96 - 94.75) + (97 - 94.75) + (97 - 94.75) + (98 - 94.75) + (98 - 94.75) + (99 - 94.75) + (105 - 94.75)\div12$

Which is

$(9.75) + (6.75) + (4.75) + (3.75) + (1.75) + (1.25) + (2.25) + (2.25) + (3.25) + (3.25) + (4.25) + (10.25)\div12$

Which comes out to

$\frac{53.5}{12}=4.4583$

6 0

2 years ago