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QveST [7]
3 years ago
10

-2(3x + 4) + 7x = 10

Mathematics
1 answer:
musickatia [10]3 years ago
6 0

Answer:

18

Step-by-step explanation:

-2(3x+4)+7x=10

-6x-8+7x=10

x=10+8

x=18

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Lucy rolls 2 fair dice and adds the results from each. Work out the probability of getting a total that is a multiple of 5
Sergio039 [100]

Answer:

(1,4) ( 4,1)  (2,3) (3,2)

Step-by-step explanation:

Multiples of 5  =  5  and 10

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7 0
3 years ago
Your younger sibling runs up to you and excitedly exclaims, "I'm thinking of a number. If I add it to the number 2 ten times, th
erik [133]

Answer:

x = 0

Step-by-step explanation:

Given

Represent the number with x.

So:

2 + x + x + x + x + x + x  + x + x + x + x = 2

or

2 + 10x = 2

We want to solve for x

Subtract both sides by 2

2 - 2 + 10x = 2 - 2

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Solve for x

x = \frac{0}{10}

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No other number aside 0, satisfy the property.

4 0
3 years ago
If b is the measure of an acute angle and cos b = 0.75, then:
Marina CMI [18]

Answer:

option (2)

Step-by-step explanation:

Using the cofunction identity

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3 0
3 years ago
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