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3 years ago

Write an algebraic equation and solve. The sum of three times a number and 6 is 30

Mathematics

1 answer:

pishuonlain [190]3 years ago

4 0

Answer:

3+x*6=30

Step-by-step explanation:

You can put any number but I choose x but here is you answer all you have to do is add 3 to a number and multiply it by 6.

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How many numbers from 1 through 200 have a 2 in the units place and are divisible by 4?

ehidna [41]

about : 22 - 25 numbers

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3 years ago

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ra1l [238]

Answer:

16. q

17. -4 $\frac{1}{3}$

18. 0

Step-by-step explanation:

16. q

17. -4 $\frac{1}{3}$

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This question is confusing me

gizmo_the_mogwai [7]

Answer:

She went on the slide 8 times and on the roller coaster 4 times

Step-by-step explanation:

We convert each statements to a mathematical equation.

Firstly, let's represent the number of times she went on the coaster with R and the number of times on the slide with S. We know quite well she went on 12 rides. Hence the summation of both number of times yield 12.

Mathematically, R + S = 12. ........(i)

Now we also know her total wait time was 3hours. Since an hour equals 60 minutes, her total wait time would equal 180 minutes.

To get a mathematical representation for the wait time, we multiply the number of roller coaster rides by 25 and that of the slides by 10.

Mathematically, 25R + 10S = 180 .......(ii)

Here we now have two equations that we can solve simultaneously.

From equation 1 we can say R = 12 - S. We can then substitute this into equation 2 to yield the following:

25(12 - s) + 10s = 180

300 - 25s + 10s = 180

300 - 15s = 180

15s = 300 - 180

15s = 120

S = 120/15

S = 8

S = 8 , and R = 12 - S = 12 - 8 = 4

5 0

3 years ago

Please help with question 10

Ray Of Light [21]

Answer:

equation of the line is y=x+1

Step-by-step explanation:

the equation of a line has the form y = mx + b

while m is for the slope and b is for the y-intercept.

you can see from the graph that the line intercepts the y-axis at y=1 this is the b.

you can get the slope of the graph by taking two points from the graph lets say (1, 2) and (3, 4) then using this formula:

in our case it will be:

$m=\frac{4-2}{3-1} = \frac{2}{2}=1$

then just substitute the values for m and b.

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2 years ago

A package of 5 crackers contains 205 Calories. How many Calories are in one cracker using a double number line

natulia [17]

Answer:

Step-by-step explanation:

since there are 205 calories in 5 crackers we can represent this as

205/5

we need to find how many calories are in one cracker, so lets take "x" as the # of calories in 1 cracker

$\frac{x}{1} =\frac{205}{5}$

cross multiply

5x=205

divide by 5 on both sides

x=41

41 calories in 1 cracker

Number line:

7 0

2 years ago