MATHEMATICS MIDDLE SCHOOL

Write
0.28
as a fraction in simplest form.

Answers

Answer 1

Answer:

7/25

First thing you want to do is put it over 100

28/100

Now divide by 4

28÷4=7

100÷4=25

Answer 2

Answer: 28/100=14/50=7/25 the last fraction is the correct answer

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Find the value.A.1B.2C.3D.0.5
During the day, the manager of the meat department sold 15.4 pounds of hamburger to one customer and 13.22 pounds to another customer. When the store opened that morning, he had 35.75 pounds of hamburger to sell. How much hamburger does the manager have left to sell? lb

What decimal in the hundreds place is equivalent to 7/10

Answers

0.7 is equivalent to 7/10

I don't know if this is what you needed but i hope it helps :)

.7 hope it helped and hope its right

Explain how you know whether to add or subtract when you use the distributive property to multiply

Answers

Distributive property of multiplication has two expressions:

1. $a\cdot (b+c)=a\cdot b+a\cdot c$

2. $a\cdot (b-c)=a\cdot b-a\cdot c$

If you use these formulas from the left side to the right side, you should see for the sign in the brackets: "+" - use addition, "-" - use subtraction. If you use these formulas from the right side to the left side, you should also take into account sign between $a\cdot b$ and $a\cdot c$ : for "+" - use addition in brackets and for "-" - use subtraction in brackets.

The correct answer is:

We treat the addition or subtraction signs inside the parentheses as positive and negative signs and follow our integer rules.

Explanation:

Take for example -3(x+y). The distributive property tells us to take -3*x + -3*y; we have a positive multiplied by a negative, which is a negative, and another positive multiplied by a negative, which is again a negative. This gives us -3x+-3y, or -3x-3y.

If we consider the sign of the value outside the parentheses as well as the signs of those inside, we can be sure to use the write operation sign.

Find the perimeter of the triangle 40 9

Answers

To solve for the perimeter of the triangle, first use Pythagorean theorem to solve for the hypotenuse and then add all of the sides together.

40 ^2 + 9^2
1600 + 81
1681 = C^2
41 = C

P = a + b + c
P = 40 + 9 + 41
P = 81 + 9
P = 90 units.

Simultaneous equations: 3x-2y=9 5x-2y=7

Answers

$\left \{ {{3x-2y=9\ /\cdot(-1)} \atop {5x-2y=7\ \ \ \ \ \ \ \ }} \right.\n\n \left \{ {{-3x+2y=-9} \atop {5x-2y=7}} \right. \n--------\n-3x+5x=-9+7\n2x=-2\ /:2\nx=-1\n \n5x-2y=7\n 2y=5x-7\ \ \Rightarrow\ \ \ y= (1)/(2)\cdot[ 5\cdot(-1)-7]= (1)/(2)\cdot(-12)=-6\n \n \left \{ {{x=-1} \atop {y=-6}} \right.$

For a certain game, the probability of choosing a card with the number 13 is 0.008. What is the probability of not choosing card 13?

Answers

0.992 is the probability

use subtraction :D

lance measured 0.485 liter of water. Angel measured 0.5 liter of water. lance said, "My beaker has more water than yours because my number has three decimal places and yours only has one." is lance correct?

Answers

No, Lance is not correct.

Further explanation:

If we compare the two decimal numbers then either they are less than, greater than or equal to each other.

For example:

There are two decimal numbers as,

$0.56{\text{ and 0}}{\text{.88}}$

Now, 0.88 is greater than 0.56 as the number after the decimal point is greater in 0.88 than 0.56.

It is given that Lance measured 0.485 litre of water.

Also, given that Angel measured 0.5 litre of water.

Lance claims that her beaker has more water than Angel’s breaker because her number has three decimal places and Angel’s only has one.

Step by step explanation:

Now, Lance has $0.485l$ of water and Angel has $0.5l$ of water.

The decimal number which has greater number after the decimal point, then that decimal number is greater than the other.

Therefore, Lance only has $0.485l$ of water whereas Angel has $0.5l$ of water in which Angel has more water than Lance.

Thus, Lance is wrong in analysing the water quantity.

Learn more:

1. Problem on the whole numbers are positive integers brainly.com/question/1852063.

2. Problem on the adding and simplifying the numbers brainly.com/question/894273.

3. Problem on the general form of the equation of the circle brainly.com/question/1506955.

Answer details:

Grade: Junior school

Subject: Mathematics

Chapter: Real line and Real numbers

Keywords:

Decimal number, decimal point, liter, water, real line, greater than, less than, equal,real numbers, fractions.

Lance is absolutely not correct.

The fact that his beaker measures at 0.485 liter, and Angel’s at 0.5 does not significantly mean Lance beaker has more water than Angel.

Further Explanation

Mathematically, Angel’s beaker has more water than Lance because 0.5 liter is greater than 0.485 liter. Angel’s given measured liter can also be expressed as 0.500.

For instance:

Lance’s liter of water = 0.485

Angel’s liter of water = 0.500

Automatically, 0.500 is greater than 0.485

Furthermore, it can denoted that the above given question is a decimal number problem. A decimal is an improper fraction whose denominator can be in 10, 100, 1000 and so on. Examples of decimals are:

2/10 = 0.2

2/100 = 0.02

2/1000 = 0.002

To understand decimals, one has to take note of placing number values.

To further highlight Lance’s wrong statement, it is important number values are evaluated. For instance

5 > 4

0.5 > 0.4

0.05 > 0.04

0.50 > 0.49 (This can also be expressed as 0.5 > 0.49; the zero after 5 is relatively insignificant, according to math theories)

Lance has a beaker that is measured at 0.485

Angel has a beaker that is measured at 0.5

From the above given illustration (0.50 > 0.49), it can be noted than 0.5 > 0.485 because 0.485 is lesser than 0.5 which can also be expressed as 0.500

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