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Elden [556K]
3 years ago
12

Dalia bought a few swirl marbles and divided it equally among four of her friends and her brother,Jake. While playing,Jake lost

two marbles and has only 7 marbles at present. Find how many marbles did Dalia buy in all.
Mathematics
1 answer:
Veronika [31]3 years ago
5 0

Answer:

45 marbles

Step-by-step explanation:

Using the information provided, we can form the equation x/5 - 2 = 7

Step 1: Add two on both sides of the equation x/5 - 2 = 7

Step 2: Multiply both sides of the equation by 5, to cancel out x. x/5=9

Step 3: Lastly, you get that x=45 marbles

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3 years ago
Of the coffee makers sold in an appliance​ store, 4.0% have either a faulty switch or a defective​ cord, 2.5% have a faulty​ swi
lukranit [14]

Answer: Hence, Probability that a coffee maker will have a defective cord is 0.376=37.6%.

Step-by-step explanation:

Since we have given that

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Here, P(A∪B) = 4% = 0.04

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We need to find P(B):

As we know that

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3 years ago
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Step-by-step explanation:

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