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3 years ago

in the lunch room there were 100 chocolate milk cartons at lunch when lunch was over 88 had been purchased

Mathematics

1 answer:

ratelena [41]3 years ago

7 0

Answer:

12 left over 100-88=12

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Are 4(5+x) and (5+4)+x equal

SSSSS [86.1K]

Answer:

No, they are not equal

Step-by-step explanation:

If x = 1

4(5+x) = 4(5+1) = 4 x 6 = 24

(5+4) + x = 9 +1 = 10

24 $\neq$ 10

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3 years ago

-4x - 2y = -2

puteri [66]

Answer: -5x= -11

Step-by-step explanation:

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3 years ago

M divided by 4 plus 3 equals -1

Pepsi [2]

Answer:

m= -16

Step-by-step explanation:

m/4+3= -1

-3 -3

m/4= -4

*4 *4

m= -16

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3 years ago

An astronaut on the moon throws a baseball upward. The astronaut is 6 ft 6 in tall, and the initial velocity of the ball is 40 f

weqwewe [10]

Answer:

t = 0.293 s and 14.52 s

Step-by-step explanation:

The heights of the ball in feet is given by the equation as follows :

$S = -2.7t^2+40t+6.5$

Where t is the number of seconds after the ball was thrown.

We need to find is the ball 18 ft above the moon's surface.

Put S = 18 ft

$-2.7t^2+40t+6.5=18\\\\-2.7t^2+40t=18-6.5\\\\-2.7t^2+40t-11.5=0$

It is a quadratic equation. Its solution is given by :

$t=\dfrac{-40+\sqrt{40^{2\ }-4\left(-2.7\right)\left(-11.5\right)}}{2\left(-2.7\right)},\dfrac{-40-\sqrt{40^{2\ }-4\left(-2.7\right)\left(-11.5\right)}}{2\left(-2.7\right)}\\\\t=0.293\ s,14.52\ s$

So, the ball is at first 0.293 s and then 14.52 s above the Moon's surface.

8 0

3 years ago

Molly ordered x number of cakes for the reception. Each cake served 12 people. Select all of the following expressions that repr

maw [93]

Answer:

12x

Step-by-step explanation:

if each cake served 12 people, that would mean that each cake would have 12 servings, so you multiply 12 (X) so however many cakes there were, you know how many

3 0

4 years ago