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3 years ago

Harry has three quarters of a dollar in coins if he only has 5 coins write the value of each coin to show the 5 coins harry has.

Mathematics

1 answer:

Paha777 [63]3 years ago

4 0

Answer

$1.25

Step-by-step explanation:

well a quarter is 25 and 4 of them is $1.00 plus 25 = $1.25 cents

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Jamie is buying 5 concert tickets, and he wants his total cost to be no more than $4 Above or below $80. Which inequality models

kumpel [21]

Answer:

Option C $\left|80-5x\right|\le 4$

Step-by-step explanation:

Let

x ----> the cost of the concert ticket

we know that

The total cost to be no more than $4 Above $80

$5x\leq 80+4$

Solve for x

$x\leq \$16.80$

The total cost to be no more than $4 below $80

$5x\geq 80-4$

Solve for x

$5x\geq 76$

$x\geq \$15.2$

therefore

The inequality that represent this problem is

$\left|5x-80\right|\le 4$

Verify

First solution (positive case)

$+(5x-80)\le 4$

$5x\le 80+4$

Solve for x

$x\leq \$16.80$ ----> is ok

Second solution (negative case)

$-(5x-80)\le 4$

Multiply by -1 both sides

$(5x-80)\ge -4$

$5x\geq 80-4$

Solve for x

$5x\geq 76$

$x\geq \$15.2$ ---> is ok

Remember that

$\left|5x-80\right|\le 4$ is equivalent to $\left|80-5x\right|\le 4$

Because is a absolute value

8 0

3 years ago

The balance in Victor's savings account went from $80 to $120. By what percentage

Nookie1986 [14]

Answer:

50%

Step-by-step explanation:

To find the percent increase, divide the increase by the original value.

The increase is $40.

The original value is $80.

40÷80 = 0.5

0.5 ⇒ 50%

It is a 50% increase.

4 0

4 years ago

Which graph represents the solution set for the quadratic inequality x^2+2x+1 0

Natasha2012 [34]

The answer is [-2,7] on e2020, good luck fam

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What is the next term in the sequence? 2, -4, 8, -16, ...

worty [1.4K]

Answer:

Step-by-step explanation:

it multiplies by -2 every time

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3 years ago

A 25ft ladder is leaning against a wall. the ladder reaches the wall 19ft above the ground. What is the angle of elevation of th

liberstina [14]

Sin(x)=19/25;
x=arcsin(19/25)
Answer: arcsin(19/25).

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3 years ago