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DedPeter [7]
3 years ago
13

Colin rides his bike 10 and a half miles every morning and 12 and 1/4 miles every afternoon on Monday he wrote his usual distanc

e in the morning but in the afternoon he rode one and a half fewer miles how many miles did Colin ride on Monday
Mathematics
1 answer:
jeka943 years ago
3 0
12 1/4- 1 1/2 >>> Convert fractions to decimals:
12.25- 1.5 = 10.75 >>> Convert decimals back to fractions:
10 3/4 >>> Add miles from the morning:  10 + 10 3/4 = 20 3/4 miles
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Gavin agrees to buy a 6 month package deal of monthly gym passes, and in turn receives a 15% discount. Write an algebraic expres
dolphi86 [110]
15% off means 85% on so I would use .85x · 6 = total monthly cost  to represent this problem.  The dot represents times (I did not want to confuse things by using x)

Other ways to express this:

6 x .85x
6(.85x)
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4 0
3 years ago
Read 2 more answers
Find the sum of the arithmetic series<br> 3+8+13+..+438
irina [24]

Answer:

19404

Step-by-step explanation:

sum of arithmetic series is

Sn = n/2 (2a + (n-1)d)

or

Sn = n/2 (a + an)

a = 1st unit

an = last unit

d = difference

8-3 or 13-8 so d = 5

then first step is to find the value of n

an = a + (n-1)d

438 = 3 + (n-1)5

438 - 3 = 5n - 5

435 = 5n - 5

435 + 5 = 5n

440 = 5n

n = 440/5

n = 88

then we can find the sum

Sn = 88/2 (3 + 438)

S88 = 19404

7 0
3 years ago
Write another way to group the factors 2×(3×1)
Sladkaya [172]
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6 0
3 years ago
Please answer correctly !!!!!! Will mark brainliest !!!!!!!!!!!
S_A_V [24]
The answer is B ( 4^15 * 5^10 ).
3 0
3 years ago
Use the Pythagorean theorem to find the number that will replace the ? mark,
julia-pushkina [17]

Answer:

43

Step-by-step explanation:

The sides of the squares make up the sides of the triangle.

To find the measure of a side of the square, take the area given and square root it, since the area of a square is equal to the length of its side squared.

For the 9cm^2 area, the square root of 9 is 3, so each side is 3 cm.

For the 34 cm^2 area, the square root of 34 is about 5.83, so each side is about 5.83 cm.

Plug these into the Pythagorean theorem (a^2+b^2=c^2) for a and b.

You get 9+34=c^2.

Solve for c by square rooting both sides to get about 6.56.

Since it's asking for the area, square 6.56 to get 43.

An easier way to do this would be to recognize that a^2, b^2, and c^2 are all equal to the area of their respective squares, since the area of a square is equal to its side squared, and the Pythagorean theorem is also squaring the sides.

Using this information, a^2 is 9, b^2 is 34.

Once you add them up, you get c^2, and you know that c^2 is the area of the square the question is asking for.

Therefore, c^2 is equal to 9 + 34, or 43.

4 0
4 years ago
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