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4 years ago

Simplify: 4.16-1.1*2.6+0.7 squared

Mathematics

1 answer:

ser-zykov [4K]4 years ago

4 0

Answer:

1.79

Step-by-step explanation:

the way you wrote the question is questionable

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John bought 18 pizzas. Mitchel bought 12 pizzas. What percent of the total number of pizzas Mitchel buy?

mina [271]

Answer: 40%

Step-by-step explanation: The total number of pizzas is 12 + 18 = 30. Mitchel bought 12 of those 30 pizzas. To find the percentage you do the portion/total. Thus 12/30 = 0.4, as a proportion. To turn a proportion into a percentage simply multiply by 100. 0.4 * 100 = 40%

7 0

3 years ago

I need help! Help will be appreciated!! Thank you :,)

Marat540 [252]

Answer:

x=25.6°, left angle is 80.7°, right is 99.3°.

Step-by-step explanation:

The two expressions add to 180°.

Left angle is 3x+4°. Right side angle is 4x-3°.

Equation is 7x+1°=180°, 7x=179°, x=(179/7)° = 25.6°

3 0

3 years ago

PLEASE HELP ME, THANKS:)

prisoha [69]

First, create M (the set of all perfect square roots less than 100)

1² = 1, 2² = 4, 3² = 9, 4² = 16, 5² = 25, 6² = 36, 7² = 49, 8² = 64, 9² = 81, 10² = 100 (disregard 10² since it is not LESS THAN 100)

M = {1, 2, 3, 4, 5, 6, 7, 8, 9} not sure if you want to include the negatives)

Next, create N (the set of all even number less than 30)

N = {2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28}

M ∩ N = {2, 4, 6, 8}

4 0

3 years ago

Two numbers are such that if 11 is added to the first number, a number twice

Bezzdna [24]

Answer:

The 2 numbers are 14 and 17.

Step-by-step explanation:

Let the 2 numbers be x and y.

x + 11 = 2y

x - 2y = -11...............A

y +20 = 2x

2x - y = 20 ...............B

Multiply equation A by -2:

-2x + 4y = 22............C

Adding B and C :-

3y = 42

y = 14.

Substitute y = 14 in equation A:

x - 2(14) = -11

x = -11 + 28

x = 17.

5 0

3 years ago

Charlene records the number of pieces of red colored candies in ten bags of candy of assorted colors. find and interpret the mea

BaLLatris [955]

To calculate the mean absolute deviation, you first must find the mean of the data and then find the difference between each piece of data and the mean.

Please see the attached picture for the work.

The mean absolute deviation is approximately 1.48.

This means that the numbers of candies in the 10 bags are all very close to one another. There is not much variation.

7 0

4 years ago