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zhannawk [14.2K]
2 years ago
4

Since it's Wednesday, Buy for Less gives a 10% discount for purchases. The items in Rhonda's cart total $85.00. She needs to kno

w the cost of the items with the discount. So, she multiplies 10% times $85.00 and subtracts the amount from $85.00 Which expression would give Rhonda the same result in one step?
Mathematics
2 answers:
Furkat [3]2 years ago
4 0

Answer:

thank you

Step-by-step explanation:

Goryan [66]2 years ago
3 0
10% Discount
$85.00
10% x $85.00 = $8.50
$85.00 - $8.50 = $76.50 (this is what Rhonda did)

90% x $85.00 = $76.50
Because 100%-10% is 90%, she only has to find 90% of the original price.
The best expression would be 90% x $85.00.

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Explain the steps for dividing decimals. Write three or four sentences.
SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

Move the decimal point in the divisor and dividend.

Turn the divisor (the number you’re dividing by) into a whole number by moving the decimal point all the way to the right. At the same time, move the decimal point in the dividend (the number you’re dividing) the same number of places to the right.

Place a decimal point in the quotient (the answer) directly above where the decimal point now appears in the dividend.

Divide as usual, being careful to line up the quotient properly so that the decimal point falls into place.

Line up each digit in the quotient just over the last digit in the dividend used in that cycle.

4 0
2 years ago
Read 2 more answers
In a second grade class containing 13 girls and 9 boys, 2 students are selected at random to give out the math papers. What is t
Finger [1]
13/22 x 9/21 = 0.25                                               
8 0
2 years ago
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my class collected 389 milk jugs. We used 40 jugs. We gave 30 milk to the first graders. how many milk jugs did we have?
BartSMP [9]
We will just do the following steps:-

389 - 40 = 349
349 - 30 = 319

So, in the end your class had 319 milk jugs left.

Hope I helped ya!! 
8 0
2 years ago
Omar recorded the number of hours he worked each week for a year. Below is a random sample that he took from his data.
lidiya [134]

Answer: B) 4

Step-by-step explanation:

Using the formula

Standard deviation = √( (Σ ( x - π)²)/n)

To get the standard deviation, first we workout the Mean which is the simple average of the data set

n = 4

(13 + 17 + 9 + 21) / 4 = 60/4 = 15

Mean(x) = 15

Then (x-π)²

13 - 15 = (-2)² = 4

17 - 15 = (2)² = 4

9 - 15 = (-6)² = 36

21 - 15 = (6)² = 36

Σ ( x - π)² = (4 + 4 + 36 + 36) = 80

Standard deviation = √( (Σ ( x - π)²)/n

= √ (80/4)

=√20

= 4.47

= 4

7 0
2 years ago
If CX = 5 units, then DZ = ___ units
gulaghasi [49]

Answer:

DZ=4\ units

Step-by-step explanation:

we know that

If CD is parallel to XZ

then

Triangle XYZ is similar to Triangle YCD

therefore

The ratio of their corresponding sides are equal

\frac{XY}{CY}=\frac{ZY}{YD}

we have

CX=5\ units, CY=25\ units, YD=20\ units,

XY=CX+CY

XY=5+25=30\ units

ZY=YD+DZ

ZY=20+DZ

substitute the values

\frac{30}{25}=\frac{20+DZ}{20}

20\frac{30}{25}={20+DZ}

24={20+DZ}

DZ=4\ units

5 0
2 years ago
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