Please Help! image below

Answers

Answer 1

Answer: 75 degrees because If you subtract 15 from 90 you get 75

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Ms. White has 15 students in her first grade class. Troy is the line leader for the week, and Mackenzie is last because she was the line leader last week. In how many different ways can Ms. Whites class line up for lunch?
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a square section of a kitchen floor is made of 49 square tiles. how many tiles are on each side of the square section of the kitchen floor?

Answers

I found the answer to this question by finding the square root of 49 because the section is a square. The square root of 49 is 7, so there are 7 tiles on each side of the floor.

Kevin spends $11.25 on lunch every week during the school year. If there are 35.5 weeks during the school year, how much does Kevin spend the entire school year?Remember to round to the nearest penny.

Answers

First, you multiply. You get $399.375. when you round it to the nearest penny, look behind the decimal, see if it's going down to 0, or going higher than 5, then round. the overall answer is going to be..............$399 and 40 cents.

Lunch per week times weeks total
11.25×35.5=399.375
rounded to the nearest penny is the same as the hundredths place which is $399.38 since the next decimal place is 5 or more

A rectangle an an area of 30 square meters anda has dimensionsperimeter of 34 meters. What are the of the rectangle

Answers

The sides of the rectangle are:
xy = 39
2x + 2y

Solve by simultaneous equation:
ysquared -17y + 30 = 0

Solution:
The sides are equal to 15 and 2

Ali's dog weighs 8 times as much as her cat. Together, the two pets weigh 54 pounds. How much does Ali's dog weigh?

Answers

I did 54/8 because you are multiplying D×8 and the product of 54/8= 6.75 so yeah the answer is 6.75

Can the sum of two mixed numbers be equal to 2

Answers

I don't think so, unless you'll allow one of them to be a negative mixed number.

A mixed number is the sum of a whole number and a fraction.

(Whole number-A + Fraction-A) + (Whole number-B + Fraction-B) =

(Whole number-A + Whole number-B) = (Fraction-A + Fraction-B)

Right away you see that this can't be equal to 2, because we have the sum of
two whole numbers ... which must be at least 2 ... and then some more.

But if you'll accept one negative mixed number then it's easy:

( 6 1/2 ) + ( - 4 1/2 ) = 2

Round each number to the nearest ten to estimate 87.4 - 28.5

Answers

87.4 would be rounded to 90
28.5 would be rounded to 30
90-30=60 This is the estimated value

87.4 would round to 90 and 28.5 would round up to 30
90-30=60
60 would be your answer

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