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DanielleElmas [232]
3 years ago
10

A bicyclist travels at a constant speed of 18 mi/h. How long does it take the bicyclist to travel 90 mi

Mathematics
2 answers:
Stells [14]3 years ago
6 0
If the bicyclists is traveling 18 miles every hour and needs to travel a sum of 90 miles, you need to divide 90/18 equaling the total time (in hours) needed to travel 90 miles. Hope this helps
mina [271]3 years ago
6 0

Answer: 5 hours

Step-by-step explanation:

If the bicyclists takes 1 hour to travel a distance of 18mi, 90 mi will take

I.e 18 mi .............. 1hr

90mi............... xhr

x = 90(mi) * 1(hr) / 18(mi) = 5 hours

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Solve the equation 2x^{2}+9x-1=x to the nearest 10th
Scilla [17]

Answer:

2x2+9x−1=x

Step 1: Subtract x from both sides.

2x2+9x−1−x=x−x

2x2+8x−1=0

Step 2: Use quadratic formula with a=2, b=8, c=-1.

x=

−b±√b2−4ac

2a

x=

−(8)±√(8)2−4(2)(−1)

2(2)

x=

−8±√72

4

x=−2+

3

2

√2 or x=−2+

−3

2

√2

Step-by-step explanation:

This is what I got but I'm not 100% positive. I checked it on a calculator and it seemed to check out.

4 0
3 years ago
At the start of the year a summer holiday to Spain cost £650. It increased by 11% in
olga nikolaevna [1]

Answer:

Final cost = £779

Step-by-step explanation:

It is given that:

Cost of summer holiday =  £650

Amount increased by 11%

Increased cost = 11% of 650

Increased cost = \frac{11}{100}*650

Increased cost = 0.11 * 650 =  £71.50

Amount after increment = 650 + 71.50 = £721.50

Further increase = 8%

Amount = 0.08 * 721.50 = £57.72

Final cost = 721.50 + 57.72 =  £779.22

Thus,

Final cost = £779

5 0
3 years ago
A parallelogram has symmetry with respect to the point of intersection of its diagonals. t/f?
Anna007 [38]
It is true that a parallelogram has symmetry with respect to the point of intersection of its diagonals. 
5 0
3 years ago
How to write the linear function passing through the points (3,-5) and (-8,-5)
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Check the pictrue below.

8 0
3 years ago
Help pleaseee i am awful at math
kupik [55]

Step-by-step explanation:

answer is B

use unitary method to solve it

6 0
2 years ago
Read 2 more answers
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