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3 years ago

4(x-4)-3x=10 what is the answer

Mathematics

1 answer:

max2010maxim [7]3 years ago

6 0

Answer:

Step-by-step explanation:

4(x-4)-3x=10

Rule = a(b + c) = ab + ac
Rule = a(b - c) = ab - ac

4(x-4) = 4x - 16

4(x-4)-3x=10

4x - 16 - 3x = 10

x - 16 = 10

x -16 +16 = 10 +16

x = 26

Hope this helps ^-^

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59 cans ... she counting up by 5s so multiply 5 x 10

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2 years ago

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yKpoI14uk [10]

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Step-by-step explanation:

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2 years ago

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ABCD is a rectangle. The length of BD is 8 units, and m angle ABD is 67°. The length of AC is units, and m angle CDB is °.

Marina86 [1]

See the attached picture to better understand the problem
we know that
in rectangle ABCD
AB=CD
and
AD=BC
therefore
the triangle ACD and triangle ABC are congruent
so
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the answer part a) is
BD= 8 units

Part b) Find angle CBD

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3 years ago

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Please help on question 17 with step by step instructions <br> Thanks in advance xx

shutvik [7]

Let x = Initial Price

If we increase x by 5%, we are adding 0.05x

Therefore, the new price = x + 0.05x = 1.05x

If the ticket has increased by £2.30, £2.30 is 5% of the initial price, or 0.05x

0.05x = 2.30

x = 2.30/0.05

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Therefore, the price of the ticket before the increase was £46

You can also check this backwards by doing 46*0.05 = 2.30

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2 years ago

A student’s score on an exam is an integer between 0 and 100. A score of 90 to 100 is an A, 80 to 89 is a B, 70 to 79 is a C, 60

elixir [45]

Answer:

A. 0.22

B. 0.18

C. 0.25

D. 0.244

Step-by-step explanation:

S = {51 to 100} = 50

The sample space S contains values from 51 to 100 which is a total of 50 different values.

Probability of A (lies between the values of 90 to 100 = 11).

11/50 = 0.22

For a student to fail the course, his course has to be less than 60 = from 51 to 59. A total of 9 values.

9/50 = 0.18

For student to get c, (70 to 79) a total of 10 values: 10/50 = 0.20

P(student did not get C) = 1-0.20 = 0.80

To get B, ( 80 to 89)

10/50 = 0.20

Probability that a student who is known not to have a c grade has a b grade = 0.20/0.80 = 0.25

Probability of passing lies between 60 to 100 = 41 scores

41/50 = 0.82

Probability of student who passed having a B = 0.20/0.82 = 0.244

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