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TEA [102]
2 years ago
6

For 20 points, 5 stars, and a thanks, can some one answer these 5 questions about percent increase and decrease?

Mathematics
2 answers:
Galina-37 [17]2 years ago
8 0

Answer:

380; 5% increase is 399

39; 33% decrease 26.13

48; 15% increase 55.2

3,000; 325% increase 12,750

160; 20% decrease 128

Step-by-step explanation:

Marianna [84]2 years ago
8 0
Exactly what the top answer said!
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1. James and Alexis simplified the expression 5 + 42 - 6/3. James' said the answer is
Trava [24]

Answer:

19

Step-by-step explanation:

5 + 4^2 - 6/3

= 5 + 16 - 2

= 21 - 2

= 19

4 0
3 years ago
Bars of soap come in packages of 6 and packages of 20. the 6-bar pack costs $7.86, and the 20-bar pack costs $25. which is the b
sattari [20]
6 Pack Price:
divide total price by number of bars in the pack

=$7.86 ÷ 6 bars
=$1.31 per bar


20 Pack Price:

=$25 ÷ 20 bars
=$1.25 per bar


ANSWER: The 20 pack is a better deal with a lower price per bar. The 20 pack is $1.25 per bar. The 6 pack is $1.31 per bar.

Hope this helps! :)
5 0
3 years ago
What is the perimeter of quadrilateral ABCD with verticals at A(-11,-6) b(-3,0) c(1,0) and d (1,-6)
dedylja [7]

<u>Answer:</u>

32 units

<u>Step-by-step explanation:</u>

We have a quadrilateral ABCD and we are given the following coordinates for these vertices:

A (-11,-6)

B (-3,0)

C (1,0)

D (1,-6)

AB = \sqrt{(0-(-6))^2+(-3-(-11)^2} = \sqrt{36+64} =\sqrt{100} = 10 units

BC = \sqrt{(0-0)^2+(1-(-3)^2} = \sqrt{0+16} =\sqrt{16} = 4 units

CD = \sqrt{(0-(-6))^2+(1-1^2} = \sqrt{36+0} =\sqrt{36} = 6 units

AD = \sqrt{(-6-(-6))^2+(1-(-11)^2} = \sqrt{0+144} =\sqrt{144} = 12 units

Perimeter of ABCD = 10+4+6+12 = 32 units

6 0
3 years ago
Peter work three more days than jill. Peter earn $20 day jill earn $40 day. But they earned the same amount of money
nydimaria [60]

Answer: Wowwww that ain't good at all and sooo not fair if Peter worked three more days than Jill but still only got twenty bucks. That's pretty sad.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A health fitness research group wishes to estimate the mean amount of time (in hours) that members of a fitness center spend eac
Arlecino [84]

Answer:

the smallest sample size is 163

Step-by-step explanation:

The computation of the smallest sample size that meets these criteria is shown below:

n = (Z a/2 ×  Standard deviation  ÷ Margin of error ) ^2

Zα/2 at 0.05% LOS is = 1.96 ( From Standard Normal Table )

Standard Deviation ( S.D) = 2.6

Margin of error i.e. ME =0.4

n = ( 1.96 × 2.6 ÷ 0.4) ^2

= 163

Hence, the smallest sample size is 163

6 0
2 years ago
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