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3 years ago

PLEASE HELP!

Mathematics

1 answer:

alexdok [17]3 years ago

5 0

Answer:

1. >

2. <

3. =

Step-by-step explanation:

100x8=800, 4*7=28, multiplied by 25 is 700, therefore making 800 greater than 700. Whenever comparing two multiplication problems, multiplying large numbers produces large results, so whichever starts larger will have an end result that is larger. 100 was large and it is smaller to its counter 25.

36 elevens really means 11x36, which is 396. 40 elevens really means 40x11, which is 440 minus 11x3 which is 407. 407 is greater than 396. The same logic applies here as the previous answer, the only difference is that the removal of three elevens is still larger than 36 elevens in this case.

12x24=288, 6x24=144, doubled makes it 288. In this case, the six is half of the twelve to begin with and then is made up for later by the fact that it is doubled.

When I solve math questions like these, I ignore the fact that it doesn't want a mathematical answer, do the math anyway and pull logic from it. (If your teacher checks, do it on a separate piece of paper, and then toss it.)

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A contractor is paving 1 mile 201.25 yards of a county road. How long is this portion of the road in feet and inches?

Natali5045456 [20]

A contractor is paving 1 mile 201.25 yards of a county road

Given distance is 1 mile and 201.25 yards

First we will convert 1 mile in feet.

1 mile = 5280 feet

Now we will convert 201.25 yards in feet

1 yard = 3 ft

201.25 yards = $201.25\times3=603.75$ feet

So total distance in feet is = 5280+603.75 = 5883.75 feet

1 foot = 12 inches

0.75 feet = $12\times0.75=9$ inches

This is 5883 feet and 9 inches.

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3 years ago

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730

bought at x

x + 50 - 20 = 760

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2 years ago

Calculate the heigh (x) of the tree

marta [7]

Answer:

Solution,

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hope this helps..

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2 years ago

Find g(x), where g(x) is the reflection across the x-axis of f(x)= – 4(x–10)2+3.

Dahasolnce [82]

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2 years ago

Suppose that y varies directly with x and y=10 when x=20. What is y when x=15

Likurg_2 [28]

Answer:

y=kx

subst y=10 and x=20 into the above

10=k20

k=10/20

k=1/2

therefore relationship: y=1/2x

subst x=15 into the relationship

y=1/2(15)

y=7,5

Step by step explanation:

Step 1: when they say y varies directly with x they mean y is proportional to x
step 2: so y=kx where k is the constant
step 3: is to substitute y=10 and x=20 into the above equation y=kx
step 4: you will end up with 10=k20 then divide both sides by 20 so that k becomes the subject of the formula 
step 5: your answer from the above will be k=10/20 so the relationship is y is directly proportional to 1/2 x what you did here is that you substituted k for 1/2 in the equation in step 3
step 6: is to finally substitute x=15 into the equation y=1/2x to finally get your answer y=7,5.

4 0

3 years ago