MATHEMATICS HIGH SCHOOL

The product of two rationalnumber is (-20/40 ).If one ofthe number is (4/5), then the other number is _______

Answers

Answer 1
Answer:

Answer:

The product of two rationalnumber is (-20/40 ).If one ofthe number is (4/5), then the other number is -5/8

4/5*-5/8 = -20/40

x= the number

4*x/5 =-20/40

4x*40 = -20*5

160x=-100

x=-100/160 = -5/8

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Please help me please

Answers

Answer:

11

Step-by-step explanation:

its number 2

Rays of light incident on a lens and parallel to the principal axis of the lens converge

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So we want to know in which point do light rays that are incident on a lens and parallel to the principal axis converge. Rays parallel to the principal axis and are incident on a lens converge in the focal point of the lens. So the correct answer is focal point.

The correct answer is:

Focal point.

Explanation:

The focal point of a lens is the point in space where parallel light rays meet after they pass through the lens. A perfect" lens sends all light rays through one focal point, which result in the clearest image.

A 12-punce box of cereal cost $2.29, What is the unit price to the nearest tenth of a cent/

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I'd say it could be $2.40. I hope this helps

The surface area of a cone is given by the formula S = πl + πr2. Solve the formula for l.

Answers

Hello,

S-πr²=πl

l=(S-πr²)/π

Answer:  l = s/n – r2

Step-by-step explanation:

Find value 40% of 25 is what number?

Answers

40% from 25 is:

25 * 40% =
= 25 * 40/100 =
= 25 * 4/10 =
= 25 * 0,4 =
= 10

Another way is to find 1% of 25 and then multiply it by 40:

25 * 40% =
= (25 / 100) * 40 =
= 0,25 * 40 =
= 10

Find 2 consecutive integers that the sum is 149?

Answers

The two consecutive integers that the sum is 149 are 74 and 75.


What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that the number is 149. The two consecutive integers can be calculated as below,

Suppose the two consecutive integers are x and ( x + 1 ).

x + ( x + 1 ) = 149

2x + 1 = 149

2x = 148

x = 148 / 2

x = 74

The second integer would be,

x + 1 = 74 + 1 = 75

To know more about an expression follow

brainly.com/question/11766750

#SPJ2
Write an equation. To do this, make one integer equal to x, and the other equal to x+1. Set these equal to 149. Your equation should read x+(x+1)=149. Solve. To do this, add the two x's together. Your equation is now 2x+1=149. Get your x's alone. First, subtract 1 from both sides. Now the equation is 148=2x. Divide both sides by 2 to get x alone. You now have x=74. Plug this value back into the original equation to find your value for the other integer, and you have the two integers as 74 and 75. Hope this helps!
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