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choli [55]
3 years ago
9

Evaluate the expression when b=5 and x = -7. -b+7x

Mathematics
2 answers:
olganol [36]3 years ago
7 0

\huge\textsf{Hey there!}

\mathsf{-b+7x}\\\\\mathsf{-5+7(-7)}\\\\\mathsf{7(-7)=\boxed{\large\textsf{\bf -49}}}\\\\\mathsf{-5+49}\\\\\mathsf{= \boxed{\large\textsf{\bf -54}}}\\\\\\\boxed{\boxed{\large\textsf{Answer: \huge\bf  -54 }}}\huge\checkmark

\large\textsf{Good luck on your assignment and enjoy your day!}

~\frak{Amphitrite1040:)}

svlad2 [7]3 years ago
6 0

Answer:

-54

Step-by-step explanation:

Substitute the numbers for the variables.

-(5)+7(-7)

=-5-49

=-54

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jekas [21]

Answer:

  1. y= -12
  2. x = 7
  3. q = -1
  4. x = 24

Step-by-step explanation:

1. ..............................................

  • 6(y + 7) = 2(y - 3)
  • 6y + 42 = 2y - 6
  • 6y - 2y = -6 - 42
  • 4y = -48
  • y = -12

2...............................................

  • 3x + 2(x - 5) = 25
  • 3x + 2x - 10 = 25
  • 5x = 25 + 10
  • 5x = 35
  • x = 7

3 . ..............................................

  • 10q + 3q + 5 = 2(q - 3)
  • 13q + 5 = 2q - 6
  • 13q - 2q = -6 - 5
  • 11q = -11
  • q = -1

4. ..............................................

  • 1/3(x + 6) = 2/3(x - 9)
  • 3*1/3(x+6) = 3*2/3(x - 9)
  • x + 6 = 2(x - 9)
  • x + 6 = 2x - 18
  • 2x - x = 6 + 18
  • x = 24
3 0
3 years ago
Read 2 more answers
Explain how you can use a quick picture to find 3 x 2.7
umka2103 [35]
You can make 3 tens blocks and then 3 tens blocks but only two should be filled than for the third one fill 7 only
4 0
3 years ago
What is (-94)÷5+22÷22's square?
Paha777 [63]

Answer:

Error

Step-by-step explanation:

(-94)/5+22/22    Given

-18.8+1                PEMDAS (do -94/5 and 22/2)

-17.8                    Add the numbers

After you add the numbers, you take the square root. you will get the answer "Error" because you cannot take the square root of a negative number

5 0
3 years ago
20 POINTS!!!!!
inn [45]

Answer:

D'accord. Ainsi, la flèche ou le pointeur doit pointer dessus. Si ne pointe pas, que. Découvrez-le

7 0
3 years ago
A building casts a 21 foot shadow along the ground. A person 5 feet 3 inches casts a shadow 7 feet long.
Sonja [21]

Answer:

~28

Step-by-step explanation:

5 feet 3 inches is 5.25 feet.

We divide 7/5.25 which equals 1.3333333333333 (repeating)

That means we multiply 21 by 1.333333333333 which would round up to 28 feet. (the exact answer is 27.99999999999999999)

6 0
3 years ago
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