The sum of 4 consecutive old numbers is 40. What is the second number in the sequence

Mathematics

1 answer:

Nimfa-mama [501]3 years ago

7 0

If the sequence is 7+9+11+13 then the second number in the sequence is 9

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Jerry goes to a theme park to ride the roller coasters. The theme park charges an entry fee in addition to a fee for each roller

ratelena [41]

You start with: (assuming x equals the cost to enter and y the cost of going on the rollercoasters.)
x+5y=35
x+11y=59. Multiply the top equation by -1, and subtract the equations, giving you -6y=-24, divide by -6 into both sides of the equation, to get y=4. Now replace y in one of the original equations (I recommend x+5y=35) and solve for x, giving you x=15

The cost for entering is 15 dollars, while each coaster is 4 dollars more. You could simplify this by changing y into x and making it slope-intercept form, to track your cost. y=4x+15, so it has a slope of 4, and a y-intercept of 15. This answer should give you a good grade on a test.

7 0

3 years ago

Which angle is congruent to ^^^

Montano1993 [528]

Answer:

Step-by-step explanation:

∠4=∠1

6 0

3 years ago

Laura drove 638 miles in 11 hours at the same rate how long would it take her to drive 406 miles

shusha [124]

Answer:

Step-by-step explanation:

This is a d = rt problem; but since it is linear, then proportions will work too. Set up the proportion with miles on top and hours on the bottom:

$\frac{miles}{hrs}:$

Then put the numbers in where they go, keeping in mind that miles goes with miles and hours goes with hours in the ratios, and that our unknown is time (hours):

$\frac{miles}{hrs}:\frac{638}{11}=\frac{406}{x}$ and cross multiply to solve: