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s2008m [1.1K]
3 years ago
12

Donald sells 760 marbles everyday. He sells each marble for 1.5 dollars. For how many days does Donald need to sell marbles to e

arn 3420 dollars?
A) 2 days
B) 12 days
C) 6 days
D) 3 days
Mathematics
1 answer:
Harman [31]3 years ago
8 0

Answer:

Donald needs 3 days to earn 3420 dollars

Step-by-step explanation:

Donald sells 760 marbles everyday. He sells each marble for 1.5 dollars

amount collected in one day= 760 \cdot 1.5=1140 dollars

In one day the amount earned is 1140 dollars

we need to find the number of days needs to earn 3420 dollars

Number of days needed is \frac{3420}{1140}=2.842

So its around 3 days

Donald needs 3 days to earn 3420 dollars

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Which of the following lines has a negative slope?
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The second option, or the one attached.

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       This line has a negative slope because the line is going "down the stairs" from the top-left to the bottom-right.

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A upermarket owners cost for a 26 ounce can of coffee is 6.75. A case of coffee contains 12 cans. What profit is earned for each
VladimirAG [237]

Answer:

The correct answer is 32.88.

Step-by-step explanation:

Cost price for a 26 ounce can of coffee = 6.75.

A case of coffee contains 12 cans.

Total cost price of a case is 12 × 6.75 = 81.

Selling price of each can of coffee = 9.49.

Total selling price of a case is 12 × 9.49 = 113.88.

Total profit for selling a case of cnas of coffee is given by 113.88 - 81 = 32.88

Thus the profit for selling each can is 32.88.

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2 years ago
Are the following lines parallel, perpendicular, or neither?
natta225 [31]

Answer:

Perpendicular

Step-by-step explanation:

Parallel lines mean lines that have same slope but since both equations have different slopes which you can check by looking at m-value in y = mx + b. In this case m1 or first slope is -4/3 and m2 or second slope is 3/4.

Perpendicular means that both lines are reciprocal to each other. This means the perpendicular condition is or satisfies \displaystyle \large{m_1m_2 = -1 \longrightarrow m_1 = -\frac{1}{m_2} \longrightarrow m_2 = -\frac{1}{m_1}}

We have m1 = -4/3 and m2 = 3/4.

Therefore, -4/3 * 3/4 = -1 thus both lines are perpendicular to each other as it satisfies m1m2 = -1 condition.

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2 years ago
What is the area of this face?​
Paladinen [302]

Answer:

242 ft^2

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3 years ago
Genie is making cookies and brownies. Each cookie uses 8 grams of flour and each brownie uses 12 grams of flour. She wants to ma
Nikolay [14]

The system of inequalities models correctly the number of cookies is c + b ≥ 125 and 8c + 12b ≤ 2000

Let c represent the number of cookies and let b represent the number of brownies.

Since Genie want to make more than 125 cookies and brownies altogether, hence this is given by:

c + b ≥ 125   (1)

Also, Genie has a total of 2,000 grams of flour, hence:

8c + 12b ≤ 2000  (2)

Therefore the system of inequalities models correctly the number of cookies is c + b ≥ 125 and 8c + 12b ≤ 2000

Find out more at: brainly.com/question/15137133?referrer=searchResults

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