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valkas [14]
3 years ago
10

Estimate, then find the sum of 312+397

Mathematics
2 answers:
Irina18 [472]3 years ago
6 0
312 397 ___ 709 that the answer if summary number by number you going to find it.
Klio2033 [76]3 years ago
4 0
The estimate is 700 and the answer is 709.I did this all on paper so don't worry I am very good at estimating and adding. 
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What is the Properties of Equality
Vesna [10]

Hi there,

Properties of Equality is two equations that have the same solution which are called equivalent equations. For example: 5+3=2+6 which all equal to 8.

In geometry, properties of Equality are the reflexive (2x=2x, a=a, b+1=b+1), symmetric (2a=3b then 3b=2a) and transitive property (if a+1=3 and 3=1-b, then a+1=1-b)

Hope this helped :)

Have a great day

7 0
3 years ago
What is the integer that makes the following subtraction sentence true:<br><br> 8 −? = –1
VashaNatasha [74]
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7 0
3 years ago
(WILL GIVE BRAINLYIST IF ANSWER IS RIGHT!)
d1i1m1o1n [39]

Answer:

The answer is 1 and 4

Step-by-step explanation:

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36 divided by 4 = 9

6 0
3 years ago
Tamara purchased 31 cases of tile to use on her bathroom floors .she used 17 cases in her upstairs bathroom and the rest in her
Vikki [24]
The correct equation would be 17 + x = 31
6 0
2 years ago
Read 2 more answers
The outside temperature decreases by 7F in 3 1 2hours. Part A How would you represent the temperature change as a unit rate? Exp
Evgesh-ka [11]

Answer:

A)  2f / hour

B) 10 f

Step-by-step explanation:

outside temperature decreases by ; 7 F in 3 1/2 hours

a ) represent temperature change as a unit rate

To do this you will need to represent the temperature change per hour

7 f / 3.5 hours

= 7 f / 3.5 = 2 therefore the temperature change as a unit rate = 2f / hour

b) Temperature change after 5 hours

Δ temperature  in 5 hours = temperature change per hour * 5

                             = 2 F * 5 =  10 F

6 0
3 years ago
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