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3 years ago

Write and solve a real world problem that can be represented by the expression (-3)(5)+10

Mathematics

2 answers:

ryzh [129]3 years ago

8 0

Answer:

-5

Step-by-step explanation:

(-3)(5) =-15 +10 =-5

Andreas93 [3]3 years ago

3 0

Answer: OK so the answer is -5

Step-by-step explanation:

The situation :

Molly traveled 5 feet to the library but then remembered she had left her bag at the edge of the corner, so she went back to grab her back and then went to the library that was only 8 more feet.

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B is the midpoint of AC. What is the length of AB? AB is 9x+7 and BC is -3x+20

ahrayia [7]

<h3>Answer:</h3>

$AB = \frac{67}{4}\\$

<h3>Step-by-step explanation:</h3>

If $B$ is the midpoint of $\overline{AC}$ then $AB$ is just half of $AC$ and also, $BC$ is just half of $AC$ . This means that $AB$ must be equal to $BC$ . Essentially, $9x +7 = -3x +20$ and we can solve for the of $x$ from that equation.

$9x +7 = -3x +20 \\ 9x +7 +3x = -3x +20 +3x \\ 12x +7 = 20 \\ 12x +7 -7 = 20 -7 \\ 12x = 13 \\ \frac{12x}{12} = \frac{13}{12} \\ x = \frac{13}{12}$

Now we can solve for $AB$

$AB = 9(\frac{13}{12}) +7 \\ AB = 3(\frac{13}{4}) +7 \\ AB = \frac{39}{4} +7 \\ AB = \frac{39}{4} +\frac{28}{4} \\ AB = \frac{67}{4}$

8 0

3 years ago

Galileos experiments contradicted some of the scientific laws written by whom ?

hjlf

Answer:

Aristotle

Step-by-step explanation:

Galileo claimed that acceleration due to gravity is constant for all objects regardless of their masses. This was in contradiction of what Aristotle had said earlier that heavy objects fell faster.

3 0

3 years ago

A marina is in the shape of a coordinate grid. Boat A is docked at (3.1, −1) and Boat B is docked at (−4.1, −1). The boats are _

Bingel [31]

B...................

7 0

4 years ago

Read 2 more answers

Simplify seven square root of three end root minus four square root of six end root plus square root of forty eight end root min

Cloud [144]

$7\sqrt{3}- 4\sqrt{6} + \sqrt{48} - \sqrt{54}$ simplified as $11\sqrt{3}- 7\sqrt{6}$ or $1.909$ .

<u>Step-by-step explanation:</u>

We need to Simplify seven square root of three end root minus four square root of six end root plus square root of forty eight end root minus square root of fifty four. Which is equivalent to $7\sqrt{3}- 4\sqrt{6} + \sqrt{48} - \sqrt{54}$ :

$7\sqrt{3}- 4\sqrt{6} + \sqrt{48} - \sqrt{54}$

⇒ $7\sqrt{3}- 4\sqrt{6} + \sqrt{48} - \sqrt{44}$