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barxatty [35]
3 years ago
8

The sum of a number and twice the same number is 15

Mathematics
1 answer:
lakkis [162]3 years ago
5 0
2x + x = 15
I'm not sure if that's what your asking but that's the equation used to find x.
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Regan's New Year's resolution is to exercise more. Today, she plans to run 1.5 miles on the track around her school's football f
Contact [7]

Answer:

6 laps

Step-by-step explanation:

According to the scenario, calculation of the data are as follows:

Each lap = 0.25 miles

Regan's plan to run= 1.5 miles

So, we can calculate number of laps by using following formula,

Number of laps = Total miles to run ÷ each lap miles

By putting the value, we get

Number of laps = 1.5 miles ÷ 0.25 miles

= 6 laps

So, she should run 6 laps.

7 0
2 years ago
Paula knows the total cost for 100 students will be $750, and the cost total cost for 150 students is $1050. What is the caterer
Roman55 [17]

Step-by-step explanation:

the price charged for 100 students reflects the cost per student that applies to the order as a whole.

100 * 6 = $600, so the fixed cost is 750-600 = 150.

...

We can check this by substituting in the other equation.

Does 150*6 + 150 = 1050?

150*6=900

900+150 = 1050.

Yes, it does

...

We can express this relationship by the equation:

y = mx + b

where

y = total cost

m = $6 per student

x = number of students

b = fixed costs = 150

y = 6x + 150

8 0
3 years ago
A dilation with a scale factor of 1/2 is applied to the three sides of Triangle ABC to create Triangle A'B'C'. The side lengths
Basile [38]

Answer:
its B.

Step-by-step explanation: just take half off the numbers, and then you have your answer. simple.

6 0
2 years ago
Four students took a national standardized test for which the mean was 500 and the standard deviation was 100. If a student’s z-
murzikaleks [220]

z = (x - 500) / 100

1.75 = (x - 500) / 100

175 = x - 500

675 = x

3 0
3 years ago
Read 2 more answers
43.586 rounded to the nearest hundredth
garik1379 [7]
So you round to the second decimal place, giving you 43.59
3 0
3 years ago
Read 2 more answers
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