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SVETLANKA909090 [29]
3 years ago
7

If Catherine has 3 more quarters than nickels and they have a combined value of 195 cents, how many of each coin does she have?

Mathematics
1 answer:
rjkz [21]3 years ago
3 0

Answer:

24 nickels 3 quarters

Step-by-step explanation:

195-25(3) = 120/5 = 24 nickels 3 quarters

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8×9=(5+3)×9 just need help with the answer
Svetllana [295]

Answer:

It is true.

Step-by-step explanation:

8 multiplied by 9 is 72.   5+3 is 8, which is multiplied by 9, giving the same answer on both ends.

3 0
3 years ago
A school knows that 10% of its students are left-handed. What is the
Agata [3.3K]

Answer: c did on a p e x

Step-by-step explanation:

4 0
2 years ago
One population proportion test: Which of the following situations involves testing a claim about a single population proportion?
kicyunya [14]

Answer:

A recent report estimated that 25% of all college students in the United States have a sexually transmitted disease (STD). The director of the campus health center believes that the proportion of students with STDs is higher at their campus.

According to the American Heart Association guidelines, the daily maximum amount of sugar a teenager should have is 4 teaspoons. The parents of a local high school have expressed concerns that the average daily sugar intake of their students is higher than these guidelines and have been pressuring school officials to limit unhealthy snack and beverage choices offered in the cafeteria and student store.

Step-by-step explanation:

The first two researches involve the single sample compared to mean of population.

The 3rd and 4th research involves comparing samples of men and women that is two individual groups.

4 0
3 years ago
Sandra is driving from Houston, Texas to Birmingham, Alabama. The distance between the two cities is 675 miles.
Pavel [41]

Answer:

125 miles

Step-by-step explanation:

1) 675-425 = 250

2) 250/2 = 125

3) 125 miles before she needs to stop

5 0
3 years ago
Solve and show your work please!x+7=2(3x-4)
Brrunno [24]

x + 7 = 2(3x - 4)         Remove the brackets

x + 7 = 2*3x - 4*2

x + 7 = 6x -  8            Subtract 7 from both sides.

x + 7 - 7 = 6x - 8 - 7  

x = 6x - 15                 Subtract 6x from both sides

x - 6x = - 15

-5x = - 15                   Divide by -5

-5x/-5 = -15/-5

x = 3

6 0
3 years ago
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