Erin is going to sew a jacket and a skirt. She needs 2 3/4 yards of material for the jacket and 1 1/2 yards of material for the skirt. Altogether, how many yards of material does Erin need?

Answers

Answer 1

Answer: you add the fractions.

turn it into an improper fraction. you multiply the whole number by the denominator then add the numerator, leaving it over the original denominator.
eg/ 2×4= 8 +3 = 11/4
1×2= 2 +1 = 3/4

find a common denominator.
eg/ 2 and 4 have the common denominator of 4.

then you make the denominators the same.
eg/ 3/2 × 2 = 6/4

add them.
eg/ 11/4 + 6/4 = 17/4

lowest terms.
eg/ 4 1/4

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The difference between the water levels for high and low tide was 3.6 feet. The low is .2 foot. Write an equation to find the water level at high tide.

Answers

Answer:

$H_(x) = 3.8ft$

Step-by-step explanation:

Thinking process:

Let the problem be expressed like this:

The water level in the high tide be given by: $H_(x)$

The water level in the high tide be given by: $L_(x)$

The difference between the two is given by the equation: $H_(x) -L_(x) = 3.6$

The height in in low tide is 0.2 ft, so the equation becomes:

$H_(x) - 0.2 = 3.6 \nH_(x) = 3.8ft$

.2+3.6=3.8 because all you do is add the .2 feet with 3.6 feet

What's 2b+8-5b+3=-13+8b-5

Answers

Answer:

Alright well solve for b by simplifying both sides of the equation, then isolating the variable

Exact form: b = 29/11

Decimal form: b = 2.63 Well Hope this helps :)

Step-by-step explanation:

b=29.11 or 2.63 there

Mamma McGurkin is planning Thanksgiving dinner. The number of pounds of turkey she will buy depends on the number of people she invites to dinner. # of people invited: 12;20 pounds of turkey: 9;15

Answers

I don't know what 12;20 or 9;15 is but if it's 1220 and 915 it would be
y = x / 0.75
Happy to Help!

Need help on number 22 I really need help!!!!!!!!! If u can help on 23 that would be awesome!!!!!

Answers

22. If you add a number to a series of data, and it doesn't change the mean, that number MUST equal the mean. Try adding the mean number into it, hopefully it doesn't change the mode or median either.

23. Basically I think (can't quite read all the question!) just work out the circumference of a circle with radius 20 feet (urgh imperial), ie 2*pi*r so 40pi.

22.
mode=the number that occurs most in the set of numbers
median=if the number are in increasing order, the number in then middle
mean=average or if all the number are added together and divided by the number of numbers, you get the average, exg mean of 2,3,4=(2+3+4)/3=9/3=3

the numbers are
91,93,93,95,98,100
mode, the number that occurs most is 93
mediann, there are 6 numbers so there is no middle number
we must fix that
first find teh mean
91+93+93+95+98+100 divide by6=95
therefor the mean is 95
the easiest way to make the mean meadian and mode the same is add 2 more 95's into the order

91,93,93,95,95,95,98,100
mode=number occurs most=95
median=middle number=95
mean=91,93,93,95,95,95,98,100 added tother and divided by 9=95

the order is 91,93,93,95,95,95,98,100

23. so the circle that he can walk around, is representing the circumference of the circle
20 is the radius
circumference=2 times pi times raidus

c=2(pi)20
c=40pi
c= aprox125.664

the dog can walk 125.7 feet before returning to start

Give one example of when you would draw a diagram to solve an angle measurement problem

Answers

An example of an angle measurement problem is when trying to calculate for the height of a particular object given the distance of the observer from the object and the angle of elevation or depression. For example, you want to find out the height of a building. All you need to know is the distance of your point of origin to the building and the angle of elevation.

Seema used compatible numbers to estimate the product of (–25.31)(9.61). What was her estimate?–250
–240
240
250

Answers

If she used rounding properly, she would have gotten -25 x 10 = -250

Answer:

-250

Step-by-step explanation:

just did the test

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