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jonny [76]
2 years ago
11

When I see an equation with parentheses, I need to use the Distributive Property.

Mathematics
1 answer:
Doss [256]2 years ago
7 0
The answer is True, trust me on this one
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Please solve this for me
olga_2 [115]
15/5 is 3

So then you change the equation to be 12=15z-3 ( don’t forgot the negative sign)

Move the constant to the right side and change the sign

-15z= -3 -12

-3-12 is -15

Divide -15z= -15

Your final answer will be z= 1
5 0
3 years ago
A bag contains 4 red marbles, 3 white marbles, and 7 blue marbles. You pick a marble without looking. Find the probability of dr
astra-53 [7]
The probability of drawing a white marble = \frac{Number  of  white  marbles}{Total  number  of  Marbles}

∴ the probability of drawing a white marble = ³/₁₄
6 0
3 years ago
If there are 205 students in the school, which is the best estimate of the number of students that are in the 5th grade?
Mila [183]

Answer:

34 people

Step-by-step explanation:

8 0
3 years ago
Write four different expressions for the perimeter of a pentagon whose sides are all s-2 units long?
Masteriza [31]

Hey there!

1. 5(s-2) This is because s-2 is the length of each side, and there are 5 sides in a pentagon all of that length, so multiplying it by 5 like this shows its perimeter.

2. 5s-10 This can be found by distributing the first equation, multiplying both s and -2 by 5.

3. (s-2) + (s-2) + (s-2) + (s-2) + (s-2) Each grouping in the parenthesis represents each of the 5 sides, so adding them all together will get you the perimeter.

4. 5(s) + 5(-2) This one is most like the first one, except it's a little more spread out. Multiply the term s by the 5 sides in one grouping, and the integer -2 by 5 in the other.

Hope this helps!

4 0
3 years ago
keisha drove 380 miles using 14 gallond of gas. At this rate, how many gallons of gas would she need to drive 418 miles?
pychu [463]
14gallons=380miles

14/380=<span>0.03684210526gallons/mile
</span>
418*<span>0.03684210526=15.4gallons
</span>
or you could cross multiply

14gallons=380miles
x gallons=418miles

\frac{14}{380} = \frac{x}{418}

380x=5852
divide both sides by 380
x=15.4 gallons

8 0
3 years ago
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