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kompoz [17]
4 years ago
7

What is 5x + 10x + 20x = ?

Mathematics
1 answer:
aev [14]4 years ago
7 0
35x would be the answer
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Liz and Alana each participate in the home that jump at the track meet Liz’s high jump was 1 meter Alana’s high jump was 132 cen
brilliants [131]
1 meter is 100 centimeters, therefore Alana jumped higher by 32 centimeters.
132-100=32
7 0
3 years ago
How do I translate twice r plus 7 is equal to 45 minus r into an equation?
Karo-lina-s [1.5K]

r^2+7=45-r

i think this is the write answer, i havent done that kind of math in awhile.

7 0
3 years ago
Grayson buys cheese and lemons at the store.
diamong [38]

Answer:

Equation: 25.81 = 6.55 + 3x

One Bag of Lemons: $6.42

Three Bags of Lemons: 19.26

Step-by-step explanation:

25.81 = 6.55 + 3x

-6.55   -6.55

19.26 = 3x

/3         /3

6.42 = x

Thus, he/she payed $6.42 for each bag of lemons and $19.26 for all three bags of lemons combined.

7 0
3 years ago
What has an x-intercept at 4 and a y-intercept at -2
goldenfox [79]

Answer:

y= 0.5x -2

Step-by-step explanation:

gradient = 2 ÷ 4 = 0.5

y intercept is -2

so... equation of line is y = 0.5x - 2

8 0
3 years ago
1. A boat is 18 ft away from a point perpendicular to the shoreline. A person stands at a point down the shoreline so that a 68°
slega [8]

Answer:

19.4 feet

Step-by-step explanation:

When calculating distances using perpendicular angles, we use trig functions such as Sin, Cos, and Tan.

  • Sine is defined in a perpendicular triangle as the ratio of the opposite side to the angle over the hypotenuse.
  • Cosine is defined in a perpendicular triangle as the ratio of the adjacent side to the angle over the hypotenuse.
  • Tangent is defined in a perpendicular triangle as the ratio of the opposite side over the adjacent side.

Because our angle and know side value are across from each other and we need to know the hypotenuse, we chose to use Sine.

We set up the equation sin (68) = \frac{18}{h}.

We isolate h by multiplying h across the equal sign and dividing sin (68) across as well. sin (68) = \frac{18}{h}\\hsin (68) = \frac{18}{h}*h\\hsin (68) = 18\\\frac{hsin (68)}{sin (68)} =\frac{18}{sin (68)} \\

And finally we have h=\frac{18}{sin (68)}. We input to calculator.

h=\frac{18}{0.92718} \\h=19.4 feet

See the attached picture below showing the shore with the boat out at sea and the position of the person.


8 0
3 years ago
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