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2 years ago

At the bake sale, a stray dog ate 26 of Samantha's muffins. That was 2/3 of all of them! How many muffins did she start with?

1 answer:

6 0

Let, the number of Original muffins = x

Then, x * 2/3 = 26

x = 26 * 3 / 2

x = 13 * 3

x = 39

In short,Your Answer would be: 39 muffins

Hope this helps!

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Which expressions are equivalent to 12r-5

ANEK [815]

The expression 12r - 5 are equivalent to 6(2r+(-1))+1 and -4(2+(-3r))+3 option (A) and (B) are correct.

<h3>What is an expression?</h3>

It is defined as the combination of constants and variables with mathematical operators.

We have an expression:

= 12r - 5

A) 6(2r+(-1))+1

= 12r + 6(-1) + 1

= 12r -5

B) -4(2+(-3r))+3

= -8 -4(-3r) + 3

= -5 + 12r

= 12r - 5

Thus, the expression 12r - 5 are equivalent to 6(2r+(-1))+1 and -4(2+(-3r))+3 option (A) and (B) are correct.

Learn more about the expression here:

brainly.com/question/14083225

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1 year ago

An airplane is flying at a speed of 500 mi/h at an altitude of one mile. The plane passes directly above a radar station at time

d1i1m1o1n [39]

Answer:

a) $s=\sqrt{1+d^2}$

b)d(t)=500t

c) $s(t) =\sqrt{1+250000t^2}$

Step-by-step explanation:

d = Horizontal distance

s = the distance between the plane and the radar station

The horizontal distance (d), the one mile altitude, and s form a right triangle.

So, use Pythagoras theorem

$Hypotenuse^2=Perpendicular^2+Base^2$

$s^2=1^2+d^2$

a) $s=\sqrt{1+d^2}$

(b) Express d as a function of the time t (in hours) that the plane has flown.

$distance = speed \times time$

d(t)=500t

$s(t) =\sqrt{1+d^2}$

using b

$s(t) =\sqrt{1+(500t)^2}\\s(t) =\sqrt{1+250000t^2}$

6 0

2 years ago

On the graph of the equation 3x + 2y = 18, what is the value of the y-intercept? (1 point) −9 −6 6 9

azamat

Answer: The answer is y=9 i did the math twice to make sure.

Step-by-step explanation:

8 0

2 years ago

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Solve: Six and three sevenths minus one and three sixths equals blank

Natali5045456 [20]

Answer:

4 13/16

Step-by-step explanation:

6 3/7 - 1 3/6 =

270/42 - 63/42 = 207/42 = 4 39/48 = 4 13/16

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1 year ago

Help me factor this completely

Tanya [424]

-12z^4 (x y^2 z^3 + 1)

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2 years ago