Can someone please help me?

A box of manufactured items contains 12 items. of which four are defective

VikaD [51]

ArrayAn arrangement of objects in equal rowscolumna vertical group of items often found in an arraycommutative propertytwo factors can be multiplied in either order to find the product
ex.) 3 x 4 = 12
ex.) 4 x 3 = 12distributive propertyTo multiply a sum by a number, multiply each addend by the number outside the parentheses.
ex. ) 12 x 3 = (10 x 3) + (2 x 3)divisionAn operation in which we make parts out of a number, which are equalequationA mathematical sentence that contains an equals sign.factorone of two or more numbers, that when multiplied together produce a given productmethoda way of doing somethingmultiplicationAn operation used for the shortening of repeated additionnumber bonda model showing part, part, whole relationshipsnumber of groupsfactor in a multiplication problem that refers to the total equal groupsnumber sentenceA complete sentence that uses numbers and symbols instead of wordspictureillustrate, show, represent, portray, or depictquotientthe answer when one number is divided by another ex.) 14 / 2 = 7repeated additionadding equal groups together ex.) 2 + 2 + 2 + 2rowa horizontal group of items often found in an arraysize of groupsfactor in a multiplication problem that refers to the how many in each grouptape diagramA drawing that looks like a segment of tape, used to illustrate number relationships.unitone segment of a partitioned tape diagramProductThe answer to a multiplication problemRepresentsWhat the number you found stands for in your problem.

4 0

3 years ago

A chemist has three different acid solutions. The first acid solution contains 25%

PilotLPTM [1.2K]

Solution:
Let the volume (in litres) of acids used be:
x1=amount of 25% acid
x2=amount of 40% acid
x3=3*x2=amount of 60% acid

8 0

3 years ago

Select the conic section that represents the equation. y2 = 10x circle ellipse parabola hyperbola

Makovka662 [10]

The conic that represents the equation y² = 10x is a parabola

Step-by-step explanation:

The general equation for any conic section is

Ax² + Bxy + Cy² + Dx + Ey + F = 0, where A, B, C, D, E and F are

constants

1. If B² - 4AC < 0, if a conic exists, it will be either a circle or an ellipse,

if A and C are equal then it is a circle, if not then it is an ellipse

2. If B² - 4AC = 0, if a conic exists, it will be a parabola

3. If B² - 4AC > 0, if a conic exists, it will be a hyperbola

∵ The equation is y² = 10x

- Subtract 10x from both sides

∴ y² - 10x = 0

∴ A = 0 , B = 0 , C = 1 , D = -10 , E = 0 and F = 0

∵ B² - 4AC = (0)² - 4(0)(1) = 0

∴ B² - 4AC = 0

∴ The conic is parabola

The conic that represents the equation y² = 10x is a parabola

Learn more:

You can learn more about discriminant in brainly.com/question/8196933

#LearnwithBrainly

6 0

3 years ago

Make 1.20 with 12 coins 3 ways plz help I need the answer very fast plz explain

denpristay [2]

You can do 3 quarter's and 9 nickels. or 12 dimes or half dollar and quarter and 9 nickels

6 0

3 years ago

What is a better deal 56/25 or 32.05/15

saul85 [17]

We are given fractions: $\frac{56}{25} \ or \ \frac{32.05}{15}$ .

Let us convert those both fractions in decimals only to get the better deal.

For first fraction 56/25, if we divide 56 by 25, we get

56 ÷ 25 = 2.24 decimal value.

And for second fraction 32.05/15 if we divide 32.05 by 15, we get

32.05 ÷ 15 = 2.14 (approximately).

2.14 is lesser value, therefore 2.14 is better deal than 2.24.

And finally we could say 32.05/15 is better deal than 56/25.

8 0

4 years ago