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inn [45]
3 years ago
6

Keri has $30.67. She goes to Target and buys a pack of pencils for $2.38 and an eraser for 56 cents. How much money did Keri spe

nd? How much money does Keri have now?
Mathematics
1 answer:
AlekseyPX3 years ago
6 0

Answer:

Keri spent $2.94 and Keri now has $27.73.

Step-by-step explanation:

$2.38+$0.56= $2.94

$30.67-$2.94=$27.73

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The force, F, needed to break a board in a martial arts class varies inversely with the length, L, of the board. If it takes 24
9966 [12]

Answer:

it would take 40 pounds of pressure to break the board.

Step-by-step explanation:

F = \frac{x}{L}

Now we plug in the numbers of force and length

24 =\frac{k}{2.5}

Now we multiply both sides by 2.5 to get rid of the fraction.

60=x

Now we plug in our variation constant

F=\frac{60}{L}

So we convert the length of 2.5 feet into inches. This is 18 inches. Since there are 12 inches in one foot, we have that 18 inches is equal to 18 divided by 12.

18÷12=1.5

We get that 18 inches is equal to 1.5 feet

we plug L = 1.5 into our inverse variation equation and solve for F.

F=\frac{60}{1.5}

This simplifies to F = 40

If you have any questions feel free to ask in the comments - Mark

ALSO Happy Valentines Day ❤

4 0
3 years ago
If prism A and Prism B have a ratio of similarity of 2:3, what is the volume of prism A if Prism B's volume is 56 cubic inches
Sunny_sXe [5.5K]

Answer:

16.6 in³

Step-by-step explanation:

Given the ratio of similarity = 2 : 3, then

the ratio of volumes = 2³ : 3³ = 8 : 27

let the volume of prism A be x then by proportion

\frac{x}{8} = \frac{56}{27} ( cross- multiply )

27x = 448 ( divide both sides by 27 )

x = 448 ÷ 27 ≈ 16.6 ( to 1 dec. place )

Prism A has a volume of approx 16.6 in³

3 0
3 years ago
I'm a little confused on a question a have to do. It says, Alan has a map of Narniland on his kitchen table. A. How is the table
omeli [17]
<span>geometric plane says it extends infinitely outward in all directions and has no thickness. so that wouldn't fit a table so its pretty much what i just said</span>
6 0
3 years ago
Consider the equation 3a+0.1n=123. If we solve this equation for n, which equation would result? A. 0.1n=123-3a B. N=123-3a-0.1
neonofarm [45]

Answer:

n = (123 - 3a) / 0.1

Step-by-step explanation:

Given:

3a + 0.1n = 123

Solve for n

3a + 0.1n = 123

Subtract 3a from both sides

3a + 0.1n - 3a = 123 - 3a

0.1n = 123 - 3a

Divide both sides by 0.1

n = (123 - 3a) / 0.1

The resulting equation if 3a + 0.1n = 123 is solved for n is n = (123 - 3a) / 0.1

4 0
3 years ago
Which of the following is equal to tan(A)?
Scrat [10]

Answer: cot B

Step-by-step explanation: if i am right mark me as brainliest

8 0
3 years ago
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