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irakobra [83]
3 years ago
7

Rafael writes an expression to represent “a number, n, decreased by thirty-one.” Then he evaluates that expression if n=29. Whic

h statements are true about the expression and its evaluation? Check all that apply. a.The correct expression is 31-n. b.This is a subtraction expression. c.This is an addition expression. d.To evaluate, substitute 29 for the variable in the expression. e.To evaluate, substitute 31 for the variable in the equation. f.To evaluate the expression, add 31 to 29. g.The correct expression is . h.To evaluate the expression, subtract 31 from 29.
Mathematics
2 answers:
yulyashka [42]3 years ago
3 0
This is a subtraction expression.o evaluate, substitute 29 for the variable in the expression.to<span>evaluate the expression, subtract 31 from 29.</span>
Scorpion4ik [409]3 years ago
3 0

Answer:I believe it’s a, b, g, and h

Step-by-step explanation:

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alisha [4.7K]

Answer:

y = 3 x - 4

Step-by-step explanation:

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2 years ago
5h+3 - j; use h = 6, and j = 1
olga55 [171]

Answer:

32

Step-by-step explanation:

lets substitute the appropriate values in the equation:

5h+3 - j    h= 6    j=1 , so we have:

5*6 +3 -1

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7 0
2 years ago
Read 2 more answers
For what value of x do the expressions 2/3x + 2 and 4/3x -6 have the same value
Masteriza [31]
<h2>The value of x = - \dfrac{10}{3}</h2>

Step-by-step explanation:

The given expressiona are:

\dfrac{2}{3x+2} and \dfrac{4}{3x-6}

To find, the value of x = ?

∴  \dfrac{2}{3x+2}=\dfrac{4}{3x-6}

By crossmultiplication, we get

4(3x + 2) = 2(3x - 6)

⇒ 12x + 8 = 6x - 12

⇒ 12x - 6x =  - 12 - 8

⇒ 6x = - 20

⇒ 3x = - 10

⇒ x = - \dfrac{10}{3}

∴ The value of x = - \dfrac{10}{3}

Thus, the value of x is equal to - \dfrac{10}{3}.

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Jimmy can run 3.5 miles in 20 minutes. how far can ne run in one hour and ten minutes?
prisoha [69]

Hello There!

Before we start, I am going to divide 3.5 by 2 because then we can multiply by 7 to see how far Jimmy can run in 70 minutes.

Jimmy can run 1.75 miles in 10 minutes.

To find out how many miles he can run in 70 minutes, we just multiply 1.75 by 7 and we get a product of 12.25

Jimmy Can Run 12.25 Miles In 70 Minutes

5 0
3 years ago
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