3 years ago

Evaluate: -7 - (-8) + (-3) + 6 - 2 A) -2 B) 0 C) 1 D) 2

Mathematics

2 answers:

miskamm [114]3 years ago

5 0

The answer is D ........

Gala2k [10]3 years ago

4 0

Answer:

D) 2

Step-by-step explanation:

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ms shah grades 3402 math problems during 5th period this is 54% of the total number of problems she need to grade what is the to

olga_2 [115]

The total number of problems she needs to grade is 6.

6 0

2 years ago

3-7= 4-6= 3+-6= 4--1= -5+-5= -3+5= -4-6=

kipiarov [429]

Answer:

Answers are below

Step-by-step explanation:

3 - 7 = -4

4 - 6 = -2

3 + -6 = -3

4 - - 1 = 5

-5 + -5 = -10

-3 + 5 = 2

-4 -6 = -10

Hope this helps!!

4 0

3 years ago

The mean age of Mr Jasmi,Miss Haslinda and their three children is 38 years. The mean age of their three children is 18 years. C

DedPeter [7]

Answer: 68

Explanation:

Let x be the age of Mr Jasmi
y be the age of Miss Haslinda
a + b + c be the age of the 3 children

We can write:
(x + y + a + b + c)/5 = 38

But:
(a + b + c)/3 = 18
a + b + c = 18(3)
a + b + c = 54

Substitute this value to our first equation

(x + y + 54)/5 = 38
x + y + 54 = 38(5)
x + y + 54 = 190
x + y = 190 - 54
x + y = 136

Thus:
Mean age of (mr jasmi and miss Linda) = (x+y)/2

But x + y = 136

=> mean age = 136/2 = 68

4 0

2 years ago

Some more free-points education is important

makkiz [27]

Answer:

Thank you for the free-points!!! <3

Step-by-step explanation:

5 0

2 years ago

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Cos 35º sin 55° + cos 55° sin 35°

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