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9966 [12]
3 years ago
6

Please answer! I’m desperate lol

Mathematics
1 answer:
8_murik_8 [283]3 years ago
5 0

Step-by-step explanation:

A) The bus rental would be the total cost or "C". So 700=250+3m.

B) Solve with properties of equality:

  700 - 250 = 250 + 3m - 250

  450 = 3m

  450/3 = 3m/3

  150 = m

  150 miles

C) Check your answer by plugging the answer into the original equation:

  C = 250 + 3(150)

  C = 250 + 450

  C = 700

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Evaluate summation of negative quantity n minus 5 end quantity from n equals 2 to 8
nydimaria [60]
One way of doing it is by using the properties of summing things, like factoring out the minus sign: <span><span>∑<span>n=2</span>8</span><span>−(n−5)</span>=−<span>∑<span>n=2</span>8</span><span>(n−5)


</span></span> and splitting it up into two parts and again factor <span>=−<span>(<span><span>∑<span>n=2</span>8</span><span>n−5<span>∑<span>n=2</span>8</span>1</span></span>)


</span></span> The last sum is just counting how many numbers there are from 2 to 8, which is 7 (you can do it on your fingers). The first one can be calculated fast if we are clever and use this identity:

<span><span>∑<span>n=1</span>m</span>n=<span><span>m(m+1)</span>2


</span></span> So what we get is <span><span>=−<span>(<span>−1+<span><span>8(8+1)</span>2</span>−7</span>)</span>=8−72/2=8−36=−28.</span></span>
3 0
3 years ago
The unit of ratio is expressed in <br> a) Metre <br> b) Gram
GaryK [48]
The unit of ratio is expressed as none. Ratio comprises of similar type of quantities so the units cancel out each other and thus there is no unit for a ratio. There is no unit for ratio. The numbers in the ratio will be of same unit - the unit can be meter or gram or litre or any such unit.
8 0
3 years ago
Esteban made the following drawing and then stated this conjecture the altitude of atriangle always lies inside of or along the
Radda [10]

Answer:

The error Esteban made that the altitude can be lie outside the triangle

Step-by-step explanation:

* Lets explain the position of the altitude in any triangles

- The altitude of a triangle is a line drawn from a vertex to the

  opposite side and perpendicular to it

- So altitude is the shortest distance from a vertex to its opposite side

- If the triangle is acute triangle, then its altitudes lie inside it

- If the triangle is obtuse triangle, the the altitudes of the sides of

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- If the triangle is right triangle, then the two sides of the right angle

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- Look to the attached figures for more understand

∵ Esteban said  the altitude of a triangle always lies inside of or

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∴ The error Esteban made that the altitude can be lie outside

   the triangle

5 0
4 years ago
All the comic books in a store are the same price. If Vera buys 3 comic books for $7.50, how much do 7 comic books cost?
brilliants [131]

Answer:

the answer is 17.5

Step-by-step explanation:

If you do 7.50 divided by 3 it gets you 2.5 then do 2.5 times 7 and its gets you 17.5

<u><em>Your Welcome!</em></u>

8 0
3 years ago
Which expression does the graphic represent? 8 positive tiles. 1 tile is crossed out. 7 minus 1 7 minus (negative 1) 8 minus 1 8
Tanzania [10]

Answer:

7-(-1)

Step-by-step explanation:

4 0
3 years ago
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