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harina [27]
3 years ago
13

Helppppppp!!!! me ill put you brainliest!

Mathematics
1 answer:
Damm [24]3 years ago
4 0

Answer:

21 3/4 - 13 1/8 = 8 5/8 ft longer

Step-by-step explanation:

We subtract the blue rope from the green rope

21 3/4 - 13 1/8

We need to get a common denominator of 8

21 3/4*2/2 - 13 1/8

21 6/8 - 13 1/8

8 5/8

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what is mathematical format in Algebra is it just simplifying ,my teacher said he mainly cares about mathematical format
jeyben [28]
You must use the Order of Operations
Parentheses
Exponents
Multiply
Divide
Add
Subtract

4 0
3 years ago
Tom earned $72 walking dogs for 6 hours. How many total hours will it take tom to earn $96 in all? Solve using unit rates
slava [35]

Answer:

8 hours

Step-by-step explanation:

Step one:

Given data

Tom earned $72 walking dogs for 6 hours

amount earned = $72

time taken = 6 hours

Required

The time taken to earn $96

Step two:

let us find the unit rate of his earning

unit rate = 72/6

= 12 per hour

 

In 1 hour Tom earns $12

in x hours he will earn $96

cross multiply we have

96*1= 12x

divide both sides by 12

x= 96/12

x=8 hours

3 0
3 years ago
Plzz help me to solve this qns please
tatiyna

9514 1404 393

Answer:

  ₹14000

Step-by-step explanation:

Let c represent the cost price, and m represent the marked price.

  c × (1 +40%) = m

  m × (1 -15%) - c = ₹1900

Using the first expression for m, the second equation becomes ...

  1.40c×0.85 -c = ₹1900

  0.19c = ₹1900

  c = ₹1900/0.19 = ₹10000

Then the marked price was ...

  m = 1.40c = 1.40×₹10000 = ₹14000

The marked price was ₹14000.

_____

The selling price was ₹11900.

7 0
3 years ago
The length of a rectangle is 3 times the width. If the perimeter is to be greater than 56 meter. What are the lossible values fo
lidiya [134]

Answer:

w > 7

Step-by-step explanation:

L = 3w

2L + 2w > 56

sub for L

2(3w) + 2w > 56

6w + 2w > 56

8w > 56

w > 7


Check: L = 3(8)

L = 24

2(24) + 2(8) > 56

48 + 16 > 56

64 > 56

7 0
3 years ago
Read 2 more answers
Your medical research team is investigating the standard deviation of the cost of a 30-day-supply of a certain heart medication.
Valentin [98]

Considering the situation described, the hypothesis tested are given as follows:

  • The null hypothesis is H_0: \sigma \geq 23
  • The alternative hypothesis is H_1: \sigma < 23

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the standard deviation is not less than $23, that is:

H_0: \sigma \geq 23

At the alternative hypothesis, it is tested if there is significant evidence t conclude that the standard deviation is less than $23, that is:

H_1: \sigma < 23

More can be learned about an hypothesis test at brainly.com/question/26454209

4 0
2 years ago
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