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kupik [55]
3 years ago
9

Maria had $22 to spend on five pencils. After buying them she had $12.

Mathematics
1 answer:
Ganezh [65]3 years ago
5 0

Answer:

$2

Step-by-step explanation:

did it in my head........

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A shoe store buys a pair of boots from a supplier for $45. The store's manager decides on a markup of 35%. What is the new price
Gnom [1K]

Answer:

The new price of the books = $60.75

Step-by-step explanation:

  • As the original price is: $45

As the markup is: 35% = 35/100 = 0.35

The Markup on the original price is:

0.35 × 45 = $15.75

Hence, the new price of the boots:

$45 + $15.75 = $60.75

Therefore, the new price of the books = $60.75

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3 years ago
Secant RM intersects secant RN at point R. Find the length of RQ. If necessary, round to the hundredths place.
QveST [7]

Answer:

3 Units

Step-by-step explanation:

Secant RM intersects secant RN at point R.

The secants intersects the circle at points P and Q respectively as seen in the diagram.

To determine the length of RQ, we use the Theorem of Intersecting Secants.

Applying this on the diagram, we have:

RP x RN=RQ X RM

4(4+5)=RQ(RQ+9)

Let the length of RQ=x

4*9=x^2+9x\\36=x^2+9x\\x^2+9x-36=0\\x^2+12x-3x-36=0\\x(x+12)-3(x+12)=0\\(x+12)(x-3)=0\\x+12=0$ x-3=0\\x=-12 or x=3\\Since x cannot be negative$\\x=|RQ|=3

Therefore, length of RQ=3 Units

7 0
2 years ago
6z^6-21z^4-12z^2<br>give in step by step explanation​
Bas_tet [7]

This expression cannot be simplified, as you cannot add or subtract variables raised to different exponents.

3 0
3 years ago
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Anna [14]

Answer:

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Step-by-step explanation:

3 0
3 years ago
a coin collector has 36 dimes and nickels with a total face value of $2.80. they are actually worth a lot more. how many of each
Juliette [100K]

Answer:

16 nickels and 20 dimes

Step-by-step explanation:

16x5=80

20x10=200

80+200=280

280 cents = $2.80

8 0
3 years ago
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