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Dafna11 [192]
3 years ago
8

What is the first step when evaluating the expression (4+8÷2)×5-1​

Mathematics
2 answers:
Anton [14]3 years ago
6 0

(4+8/2)*5-1

first step divide in the parentheses

(4+4)*5-1

second step add in the parentheses

8*5-1

third step multiply

40-1

last step subtract

39

xenn [34]3 years ago
5 0

Answer:

It is B. 8 divided by 2.

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-5/4x+2/5=-13/30. What is the solution to ths equation
uysha [10]
2/3 is the answer to this problem.
8 0
4 years ago
Length of a rectangle is 4 inches less than twice it’s width of the perimeter is 70 inches what’s the dimensions?
Vedmedyk [2.9K]
W= width
L= length= 2W-4
Perimeter= 70

FIND WIDTH:
P= 2(L + W)
P= 2L + 2W
substitute 2W-4 for L
70= 2(2W-4) + 2W
multiply 2 by all in parentheses
70= (2*2W) + (2*-4) + 2W
70= 4W - 8 + 2W
combine like terms
70= 6W - 8
add 8 to both sides
78= 6W
divide both sides by 6
13= W

FIND LENGTH:
substitute w=13 to find width
L= 2W-4
L= 2(13)-4
L= 26-4
L= 22

CHECK:
P= 2(L + W)
70= 2(22 + 13)
70= (2*22) + 2(13)
70= 44 + 26
70= 70

ANSWER:
length= 22 inches
width= 13 inches

Hope this helps! :)
3 0
3 years ago
3 mi = _______ft plaese show work
Alex_Xolod [135]

Answer:

15840 ft

Step-by-step explanation:

3 times 5280

5 0
3 years ago
Read 2 more answers
Which Expression is a factor of 16a2 − 25
kipiarov [429]

Answer:

should be (4a-5)x(4a+5)

Step-by-step explanation:

5 0
3 years ago
At West School, there are 20 c lassrooms Bach classroom has 20 students How many students are at West School?​
trasher [3.6K]

Answer:

20

Step-by-step explanation:

The answer is 20, because they are asking about the west school.

7 0
3 years ago
Read 2 more answers
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