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In-s [12.5K]
3 years ago
13

Which expresión is equvalient yo 810-210+20+20

Mathematics
2 answers:
Maurinko [17]3 years ago
4 0

Answer:

The ANSWER is 640

Step-by-step explanation:

810 - 210 = 600 + 20 = 620 + 20 = 640

andrezito [222]3 years ago
3 0

Answer:

640

Step-by-step explanation:

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Solve for substitution<br> x-2y+z=-11<br> 3x+2y-z=7<br> -x+2y+4z=-9
Alla [95]

Answer:

Unit rate miles per day is, 3

Step-by-step explanation:

Unit rate are defined as the rate are expressed as quantity of 1 such that 2 miles per hour or 5 km per hour.

As per the given statement: A construction crew built 1/2 miles of road in 1/6 days

by unit rate definition;

After substituting the given values we have

⇒  

or

Therefore, unit rate miles per day is, 3

Step-by-step explanation:

hhhthhg

6 0
3 years ago
When they readon me to the nearest hundred, I become 500. What numbers can I be?
AVprozaik [17]

Answer:

Hiya there!

Step-by-step explanation:

450-549

you can round up or down

<em><u>Hope this helped!</u></em> :D

7 0
3 years ago
What is the answer to this problem
miv72 [106K]
10x10x10x10=10^4
10x10x10x10=10,000

6x10^5=6x100000
6x10^5=600000
7 0
3 years ago
Read 2 more answers
The radius of Circle A is 6 mm. The radius of Circle B is 4 mm greater than the radius of Circle A. The radius of Circle C is 2
labwork [276]

Answer:

Area of circle A =113.14 mm²

Area of circle b = 314.29 mm²

Area of circle C = 452.57 mm²

Area of circle A = 254.57 mm²

2.25 times

Step-by-step explanation:

Area of a circle = nr²

where n = 22/7

r = radius

Circle A's radius = 6mm

Circle B's radius = 6mm + 4mm = 10mm

Circle C's radius = 10mm + 2mm = 12mm

Circle D's radius = 12mm - 3mm = 9mm

Area of circle A = (22/7) x 6² = 113.14 mm²

Area of circle b = (22/7) x 10² = 314.29 mm²

Area of circle C = (22/7) x 12² = 452.57 mm²

Area of circle A = (22/7) x 9² = 254.57 mm²

Number of times the area of circle D is greater than that circle A = Area of circle D / Area of circle A

254.57 mm² / 113.14 mm² = 2.25 times

4 0
3 years ago
13/19x=130 how do I solve?
Taya2010 [7]
Divide both numbers by 13/90

13/90x = 130
÷13/90   ÷13/90

x= 900
8 0
3 years ago
Read 2 more answers
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