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Fofino [41]
3 years ago
14

Evaluate the expression. [(12 x 5) - 10] : 5

Mathematics
1 answer:
dolphi86 [110]3 years ago
7 0

Answer:

10

Step-by-step explanation:

= [60-10] / 5

= 50/5

= 10

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If y varies directly with x, and y = 18 when x = 4, what is the constant of proportionality?
GREYUIT [131]
Y is directly proportional to x and therefore takes the form y=kx where k is the constant of proportionality.

Dividing both sides by x for the given values, k becomes 18/4 = 4.5
3 0
3 years ago
What is the image of (-4,-4) after a dilation by a scale factor of 3 centered at the<br> origin?
gtnhenbr [62]

Answer:

(-12, -12)

Step-by-step explanation:

Since the scale factor is 3, you would multiply the x-coordinate and y-coordinate by it.

-4×3=-12

Hope this helps!!

3 0
3 years ago
How many centimeters are there in 75 meters?
kumpel [21]

Answer:

7500. There are 100 centimeters in a meter therefore 75 meters have 7500 centimeters.

3 0
3 years ago
Read 2 more answers
A pollster obtains a list of all the residential addresses in a certain town, and uses a computer random number generator to cho
Margaret [11]

Answer:

Cluster sampling.

Step-by-step explanation:

Samples may be classified as:

Convenient: Sample drawn from a conveniently available pool.

Random: Basically, put all the options into a hat and drawn some of them.

Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.

Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.

Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.

In this question:

People divided into groups, by households.

Each member of the households(group) is surveyed, so cluster sampling.

6 0
3 years ago
Better quality version of last question
nadya68 [22]
Not sure at all but i think the 18 one
3 0
3 years ago
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