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3 years ago

Question 15 Evaluate x = y for x = 3 and y = 12.

Mathematics

1 answer:

nadezda [96]3 years ago

6 0

Answer:

X is four times less/smaller than Y or Y is four times greater than X

Step-by-step explanation:

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A kennel has 90 dogs in total, some are puppies and some are adult dogs. The ratio

Nikitich [7]

Answer:

Step-by-step explanation:

90÷5=18

18×2=36

We multiply two because the ration for adults is 2

3 0

2 years ago

Lena is 10 years old. She asks her dad how old he is. He tells her that the lowest common multiple of their ages is 14 times the

Ksju [112]

Answer:

Step-by-step explanation:

We know the factors of Lena's age are 2 and 5. The least common multiple must have these factors and the factors of 14, so will at least have factors of 2, 5, and 7.

Apparently, the dad's age is 5·7 = 35.

___

The GCF is 5; the LCM is 70 = 5×14.

_____

Sometimes, I use a little 3-part diagram to think about LCM and GCF. Here, it would look like ...

(2 [5) 7]

where the numbers in curved brackets (2·5) and the numbers in square brackets [5·7] are factors of the two numbers of concern (Lena's age, her dad's age). The middle number in both brackets [5) is the greatest common factor, and the product of all three numbers is their least common multiple.

Here, the product of outside numbers, 2·7 = 14, represents the ratio of the LCM to the GCF. We know that Lena's age has factors of only 2 and 5, so the numbers in the diagram have to be (2[5)7], where 2 and 7 are on the ends and 5 is in the middle.

7 0

3 years ago

Andres playsa soccer video game. He earns 3 stars for every goal hs scores and loses 3/4 stars every time he misses the goal. He

bekas [8.4K]

Answer:

Andres has 12 stars.

Step-by-step explanation:

3 stars - 1 goal
-3/4 stars - Missed goal
Scored 5
Missed 4

3 * 5 = 15

He has 15 stars but then misses 4 goals.

3/4 * 4 = 3

He loses 3 stars becuase he missed 4 goals.

15 - 3 = 12

He ends with 12 stars.

6 0

2 years ago

When comparing two data sets, Kimberly uses the median and IQR after determining that the mean and MAD do not accurately represe

77julia77 [94]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

An equilateral triangle with side lengths of 8.7 centimeters is shown. An apothem has a length of a and the radius has a length

shutvik [7]

Options A,B and D. The correction about the area of the triangle are

The apothem can be found using the Pythagorean theorem.
The apothem can be found using the tangent ratio.
The length of the apothem is approximately 2.5 cm.

<h3>How to solve for the length of the Apothem using the Pythagoras theorem</h3>

Firstly this is an equilateral triangle

3 of the sides have the length of 8.7cm

b = half of 8.7

= 4.35cm

To get A we have

a² + b² = c²

a² + 4.35² = 5²

When we solve this out we would have

a² = 25 - 18.9225

a ≈ 2.5 cm.

Hence we have proved that the first option is correct.

In an equilateral triangles, each of the angles = 60 degrees

60/2 = 30 is the angle that is made from the base

<h3>using tangent ratios </h3>

a / 4.35 = tan 30

then a = 4.35 tan 30

This would also give us an approximate of 2.5

For D

The calculations we have done based on the statements in A and B shows that D is correct as 2.5.