Danny charges $35 for 3 hours of swimming lessons.Martin charges $24 for 2 hours of swimming lessons.Who offeres a better deal?

Answer at least two 4 brainliest please <3

bogdanovich [222]

What are like terms?

In algebra, like terms are terms that have the same variables and powers. The coefficients do not need to match. Unlike terms are two or more terms that are not like terms, i.e. they do not have the same variables or powers.

A common technique for simplifying algebraic expressions. When combining like terms, such as 2x and 3x, we add their coefficients. For example, 2x + 3x = (2+3)x = 5x.

What is an inequality?

Inequalities in mathematics, a statement of an order relationship greater than, greater than or equal to, less than, or less than or equal to between two numbers or algebraic expressions. Inequalities are arguably used more often in “real life” than equalities. Businesses use inequalities to control inventory, plan production lines, produce pricing models, and for shipping/warehousing goods and materials.

What is distributive property?

The distributive property tells us how to solve expressions in the form of a(b + c). The distributive property is sometimes called the distributive law of multiplication and division. Then we need to remember to multiply first, before doing the addition!

Solving Two-Step Equations

1) First, add or subtract both sides of the linear equation by the same number.

2) Secondly, multiply or divide both sides of the linear equation by the same number.

3) Instead of step #2, always multiply both sides of the equation by the reciprocal of the coefficient of the variable.

6 0

3 years ago

Help with algebra pls help

EastWind [94]

9514 1404 393

Answer:

a. 1.48 seconds

Step-by-step explanation:

You want to find the larger value of t such that h(t) = 10.

-16t^2 +25t +8 = 10

16t^2 -25t +2 = 0 . . . . subtract the left side to get standard form

Using the quadratic formula, we find the values of t to be ...

t = (-(-25) ± √((-25)^2 -4(16)(2)))/(2(16)) = (25±√497)/32

t ≈ 0.08 or 1.48

The ball goes in the hoop about 1.48 seconds after it is thrown.

__

Additional comment

The quadratic formula tells us the solution to ...

ax² +bx +c = 0

is given by ...

$x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

Here, we have a=16, b=-25, c=2. Of course, our variable is t, not x, but the relation is the same.

8 0

3 years ago

Given BAI BD mZCBD = 40 +52 m ABC = 82 - 10° Find mZCBD: B D

sergij07 [2.7K]

Answer:

m∠CBD=68°

Step-by-step explanation:

BA is perpendicular to BD, meaning they form a right angle (90°)

This means m∠CBD + m∠ABC=90, or they are supplementary.

We have expressions given for these angles, so

4x+52+8x-10=90

12x+42=90

12x=48

x=4

Knowing x=4, we can substitute back into our expression for m∠CBD because that's what we're looking for.

4(4)+52=68

m∠CBD is 68°.

5 0

3 years ago

What is the least common denominator for the fractions 1/3 and 2/9 ?

choli [55]

The LCD of 1/3 and 2/9....ur basically looking for the lowest number that both 3 and 9 go into evenly...and that number is 9

5 0

3 years ago

2)[4] Let B, C, D be sets. Carefully prove: B (CUD) (BC) UD.

Lelu [443]

Answer:

mathematics is inclusive, so A or B is a set of things where each of them must be ... Kevin Houston in his book[2] gives an idea to think of a proof

Step-by-step explanation:

6 0

3 years ago