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gladu [14]
3 years ago
9

(-8)(-1) - 2[2-5(-1)] Slove the problem

Mathematics
1 answer:
Vladimir79 [104]3 years ago
4 0

Answer:

3.5

Step-by-step explanation:

(-8)(-1) -2[2-5(-1)]

8 -2 [ 2-5(-1)]

8 -4+10+2

-32+80+16

+32 +32

80=48

--- ----

2 2

40= 24

--- ---

2 2

20= 13

----- -----

2 2

10= 6.5

10- 6.5

3.5

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2.05×5 with shown work​
poizon [28]

Answer:

10.25

Step-by-step explanation:

205 × 5 = 1025

2.05 has 2 decimal places

5 has 0 decimal places

Therefore, the answer has 2 decimal places

1025

10.25

6 0
3 years ago
Kara is 4 more than twice as old as Julia. The sum of their ages is 13. How old is Julia?
Thepotemich [5.8K]
Let julia's age be x
Let Kara's age be 4x
x+4x=13
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3 0
4 years ago
A) 18c^2 – 2(3c – 1)^2 <br>В) (2a +3)(a −3) – 2a(4 – 6a)<br>С) (2x + 3)(3 —2x) - (2x – 5)^2 –10x​
Galina-37 [17]

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

====================================

Sorry,

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6 0
3 years ago
it takes 32 minutes for 3 people to paint 4 walls. how many minutes does it take for 4 people to paint 7 walls?
dusya [7]

so we have 3 folks painting 4 walls, now each one of them works for 32 minutes

person 1............. 32 mins

person 2............. 32 mins

person 3............. 32 mins

for a total of 32+32+32 = <u>96 minutes worth of work</u>.  That's for 4 walls, how many minutes worth is just 1 wall?

96 ÷ 4 = 24 mins.

so to paint a wall, it takes 24 mins of work worth.

so then, to paint 7 walls, that'd be 7 * 24 = 168 minutes worth of work.

what about for 4 folks doing it?  How many times does 4 go into 168?  168 ÷ 4  = 42 mins.

8 0
3 years ago
Read 2 more answers
Find the length of the arc<br> A.8 pie ft<br> B.32 pie ft<br> C.64 pie ft<br> D. 361 pie/ 12 ft
ExtremeBDS [4]
<h3>Answer: Choice A. 8pi  feet</h3>

======================================================

Explanation:

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C = 2*pi*r

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C = 2*pi*r

C = 2*pi*16

C = 2*16*pi

C = 32pi

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(1/4)*32pi = (1/4*32)pi = 8pi

The arc length is exactly 8pi feet long

Approximately this is about 25.13274 feet

6 0
3 years ago
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