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klio [65]
3 years ago
5

Mary lost 30 lbs. Before her diet she weighed 180 pounds. What is the percent of change?​

Mathematics
2 answers:
Anestetic [448]3 years ago
7 0

Answer:

The percent change is 16.67

Step-by-step explanation:

liq [111]3 years ago
7 0

Answer:

16.7%

Step-by-step explanation:

Her weight decreased by 30 lb.

Expressed as a fraction:  (-30 lb)/(180 lb) = (-1/6)

As a percentage, her weight loss came to (-1/6)(100%) = 16.7%

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If a new soccer ball is labeled $45, what would the new price be if the sign above it says "63% off"?
Paul [167]

Answer:

New price of the ball after discount = $16.65

Step-by-step explanation:

Selling price of the soccer ball = $45

Discount labeled on the ball = 63% off

Therefore, selling price after the discount = Original selling price - %discount

= $45 - (63% of $45)

= $45 - $28.35

= $16.65

New price of the ball after discount = $16.65

3 0
2 years ago
A box contains 15 yellow,15 orange, and 15 green tennis balls. If Izzy draws a tennis ball at random out of the box,what is the
EleoNora [17]
The answer would be 1/45
6 0
3 years ago
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Someone help!!! PLEASE BE QUICK.... <br> **BONUS POINTS**
Tatiana [17]

Answer:

884cm^2

Step-by-step explanation:

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6 0
2 years ago
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What else would need to be congruent to show that abc = xyz by asa
pochemuha
Since you're working with the ASA postulate, you're looking to show congruence of the angles at either end of a side. You're given side AC and angle A as congruent with their counterparts. Obviously, you also need to show congruence of angle C with its counterpart, angle Z.

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6 0
3 years ago
If f(x) = x2 + 3x - 4, find f(4).
Nat2105 [25]

Answer:

f(4) = 24

Step-by-step explanation:

Plug in 4 for x in the equation:

f(x) = x² + 3x - 4

f(4) = (4)² + 3(4) - 4

Remember to follow PEMDAS. PEMDAS =

Parenthesis

Exponents (&  Roots)

Multiplication

Division

Addition

Subtraction

and is the order of operation.

First, solve the power:

(4)² = 4 * 4 = 16

Next, multiply 3 with 4:

3 * 4 = 12

Next, combine the terms:

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f(4) = 24

f(4) = 24 is your answer.

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2 years ago
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