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Vedmedyk [2.9K]
3 years ago
13

Kelly subtracted 2.3 from 20 and got 17.7. explain why this answer is reasonable

Mathematics
2 answers:
nignag [31]3 years ago
7 0
The correct answer to this is that 2.3 -20=-17.7 the answer is resonable because if you go on a number line then you would see that if you start a 2.3 and subtract 20 spaces you get to ----17.7
netineya [11]3 years ago
3 0
If 20-2.3=17.7, then if you add 17.7 to 2.3. it equals 20 which is called the communicative property because whatever you add or subtract, the answer is the same
17.7+2.3=2.3+17.7
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Help please! I know I'm supposed to calculate how many hours she worked then multiply it by 6.75$ but I cannot get any answers t
MrMuchimi

Marcia started work at 7.32 and finished work at 3.43. In total she worked 8 hours and 11 minutes.


Convert the 11 minutes into decimal form: 

11 minutes / 60 minutes in an hour = 0.18 (rounded)


Multiply her hourly rate by her hours worked:

8.18*6.75 = $55.125 (you can round this up or down).

3 0
3 years ago
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Simplified form of 4(20 12) divided (4-3)
Bas_tet [7]
237 is the answer i think
3 0
2 years ago
Given 6(x) = (x+41, what is b(-10)?
prisoha [69]

The value of b(-10) is 31

Explanation:

The given expression is b(x)=x+41

We need to determine the value of b(-10)

The value of b(-10) can be determined by substituting x=-10 in the expression b(x)=x+41

Thus, we have,

b(-10)=-10+41

Adding the terms, we have,

b(-10)=31

Thus, the value is 31.

Therefore, the simplified value of the expression by substituting x=-10 in the expression b(x)=x+41 is 31.

7 0
3 years ago
What is the scale factor & what are the x & y values?
Anettt [7]

Answer:

Scale Factor = 3

x=45

y=75

Step-by-step explanation:

Scale Factor = 60/20 = 3

x=15*3=45

Y=25*3=75

8 0
2 years ago
ABC is equal to DEF. what angle corresponds to angle B?
gregori [183]

Angle B corresponds to ANGLE E.

You can simply tell by looking at the letters that are arranged.

ΔA<u>B</u>C = ΔD<u>E</u>F

Hope this helps

8 0
3 years ago
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