All categories

2 years ago

3.Between 10 A.M. and 11 A.M., 48 people came into Brad's store. 40 of

Mathematics

1 answer:

Sindrei [870]2 years ago

3 0

Answer:

It would be A because if 40 came in it would be a 40% chance

You might be interested in

Determine if line AB is tangent to the circle. Type

adoni [48]

Answer:

If AB is a tangent to the circle, the triangle ABO is right angled, as the angle where a tangent meets the circumference is always 90 degrees.

We also know that Pythogoras' theorem only holds for right angled triangles.

The hypotenuse is 12 + 8 as 12 is the radius so is 20.

16^2+12^2 = 256 + 144 = 400 = 20^2 so AB must be tangent.

6 0

2 years ago

In the game Kazoo, teams lose one point each time they skip a turn. They earn one point each time their team guesses correctly.

enot [183]

If they have -8 points and +6 points, that'd leave them with a total of -2 points.
So the answer is -2.

4 0

2 years ago

Three expresions for 20% of48

Serhud [2]

Answer:

9.6

Step-by-step explanation:

7 0

2 years ago

Write the cross products for the proportion s/t= u/v

Brrunno [24]

Hello from MrBillDoesMath!

Answer:

sv = tu

Discussion:

For the case of a proportion the "cross product" refers to the products of the "extremes" equaling the products of the "means". As (s,v) are the extremes and (u.t) the means, this gives sv = tu

Thank you,

MrB

8 0

2 years ago

27^x −1 = 9^3x−7 what is X

tigry1 [53]

x is $\frac{11}{3}$

Step-by-step explanation:

Let us revise some rules of exponents

$(a^{n})(a^{n})=a^{m+n}$
$\frac{a^{m}}{a^{n}}=a^{m-n}$
$(a^{m})^{n}=a^{mn}$
$a^{m}=a^{n}$ , then m = n

∵ $27^{x-1}=9^{3x-7}$

- Factorize 27 and 9

∵ 27 = 3 × 3 × 3

∴ 27 = 3³

∵ 9 = 3 × 3

∴ 9 = 3²

Substitute them in the equation

∴ $(3^{3})^{x-1}=(3^{2})^{3x-7}$

- Use the third rule to simplify each side

∴ $(3)^{3x-3}=(3)^{6x-14}$

- Use the fourth rule

∵ The bases of the two sides are equal

∴ Their exponents are equal

∴ 3x - 3 = 6x - 14

- Subtract 6x from both sides

∴ -3x - 3 = -14

- Add 3 to both sides

∴ -3x = -11

Divide both sides by -3

∴ x = $\frac{11}{3}$

x is $\frac{11}{3}$

Learn more:

You can learn more about equations in brainly.com/question/4934417

#LearnwithBrainly

3 0

3 years ago