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valina [46]
3 years ago
14

If U is the midpoint of CB, CU=18, and CB= 2x-10, then find x

Mathematics
2 answers:
Inessa [10]3 years ago
5 0

Answer:

x = 23

Step-by-step explanation:

CU + UB = CB

Since U is the midpoint that means CU = UB = 18

18+ 18 = 2x-10

36 = 2x-10

Add 10 to each side

36+10 = 2x

46 =2x

Divide by 2

23 = x

ArbitrLikvidat [17]3 years ago
5 0

Answer:

<h3>x = 23</h3>

Step-by-step explanation:

CB/2 = CU

CB = (2)CU

2x - 10 = (2)18

2x - 10 = 36

Add 10 on both sides.

2x = 46

Divide both sides by 2.

x = 23

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7 0
2 years ago
Need help with these plzz wen i get all the correct answers i will friend u and give u 42 more points.
sveta [45]

Answer:

By using pythagoras formula

5 0
3 years ago
Read 2 more answers
1. Suzette ran and biked for a total of 44.75 mi in 4 h. Her average running speed was 6.5 mph and
Andru [333]

Suzette ran for 1.6 hours and biked for 2.4 hours.

Let x = total hours Suzette ran.

Let y = total hours Suzette biked.

The equation to solve the question will be:

x + y = 4 ...... i

6.5x + 14y = 44.75 ....... ii

From i, y = 4 - x

Put the value of y into equation ii

6.5x + 14y = 44.75

6.5x + 14(4 - x) = 44.75

6.5x + 56 - 14x = 44.75

Collect like terms

6.5x - 14x = 44.75 - 56

-7.5x = -11.25

x = 11.25/7.5

x = 1.6 hours

Since x + y = 4

1.6 + y = 4

y = 4 - 1.6

y = 2.4 hours.

Suzette ran for 1.6 hours and biked for 2.4 hours.

Read related link on:

brainly.com/question/24429956

6 0
2 years ago
In A survey of 3005 adults ages 57 through 85 years it was found that 81.7% of them used at least one prescription medication. H
malfutka [58]
Multiply 3005 by 0.817 to get your answer. Doing this gives you 81.7% of the total people surveyed which happens to be the amount of people who 'use at least one prescription medication' as outlined by the problem.
7 0
3 years ago
Read 2 more answers
0/5 + 1/5 2/5 3/5 4/5 5/5​
postnew [5]

Answer:

2/5???

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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