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Effectus [21]
3 years ago
9

Simplify(a + 2b +30) - (40+36-5a)​

Mathematics
1 answer:
Crazy boy [7]3 years ago
3 0

Step-by-step explanation:

  • (a+2b+30)-(40+36-5a)
  • a+2b+30-40-36+5a
  • 6a+2b-46

hope it helps.

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Substitute w = 1 and w = 3 to determine if the two expressions are equivalent.
Margaret [11]

Answer:

The true statements are A and D

Step-by-step explanation:

4 (3(3) + 4) is 52, while 16(3) + 12 is 60

that would not be equivalent in w = 3 but it would in w = 1

6 0
2 years ago
Read 2 more answers
What is the quotient of 5 1/2 and 1/8
Stels [109]

Answer:

44

Step-by-step explanation:

5 1/2 / 1/8

turn into improper fraction

11/2 then change to multiplication

11/2*8/1(have to flip)

88/2(multiply across)

simplify=44

4 0
3 years ago
Paul and Charlene are 420 miles apart. They start toward each other with Paul driving 16 mph faster than Charlene. They meet in
Thepotemich [5.8K]

Answer:

34 mph.    

Step-by-step explanation:

Let x be speed of Charlene, then speed of Paul will be x+16 as we are given that Paul is driving 16 mph faster than Charlene.

Let y be distance covered by Charlene, then distance covered by Paul will be 420-y.  

Now we will use formula \text{Speed}=\frac{\text{Distance}}{\text{Time}}. Upon using our given information we will get two equation and two unknowns as:  

x+16=\frac{420-y}{5}...(1)

x=\frac{y}{5}...(2)

Upon substituting x=\frac{y}{5} in 1st equation we will get,

\frac{y}{5}+16=\frac{420-y}{5}

Upon multiplying both sides of our equation by 5 we will get,

5(\frac{y}{5}+16)=420-y

5\times\frac{y}{5}+5\times 16=420-y    

y+80=420-y

y+80+y=420-y+y

2y+80=420

2y=420-80

2y=340

y=\frac{340}{2}  

y=170      

Upon substituting y=170 in 2nd equation we will get,

x=\frac{170}{5}

x=34

Therefore, Charlene's speed is 34 miles per hour.


6 0
3 years ago
Evaluate the expression when a=-2 and x=7.<br> -2a+x
ziro4ka [17]

Step-by-step explanation:

-2a + x

Putting values of a = - 2 and x = 7

-2(-2) + 7

4 + 7

= 11

8 0
2 years ago
Read 2 more answers
I have to add then put the answer in simplest form and the fraction is 5/8 plus 3/10
tamaranim1 [39]

Answer:

37/40

Step-by-step explanation:

5 0
3 years ago
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