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Scilla [17]
2 years ago
7

Add the two expressions. 3z−4 and 2z + 5 Enter your answer in the box.

Mathematics
2 answers:
Genrish500 [490]2 years ago
5 0
The correct answer to this solution 5z+1! add 3 and 5 then add 5 to -4
frosja888 [35]2 years ago
3 0
Your answer is 5z+1 (wink) ;D
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Debbie did a survey of how many states the members of her class had visited. The
harkovskaia [24]

Answer:

17

Step-by-step explanation:

4 0
3 years ago
System OT<br> W + b =13<br> 6.5w + 2b = 57.5
mixer [17]

Answer:   w = 7,  x = 6

Step-by-step explanation:  Solve by substitution

W + b = 13

rewrite as   b = 13 - w  and substitute that value for b in the second equation

6.5w + 2b = 57.5  Then solve for w

6.5w + 2(13-w) = 57.5 . Distribute

6.5w + 26 - 2w = 57.5 .  Subtract 26 from both sides. Combine like terms and simplify

6.5w - 2w = 57.5 - 26

4.5w = 31.5  Divide both sides by 4.65

w = 7 . Substitute 7 for w in the first equation and solve for b

7 + b = 13 . Subtract 7 from both sides

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6 0
2 years ago
If the ratio of purple marbles to orange marbles is 3 to 8, how many orange marbles will I have if I have 48 purple marbles?
sveticcg [70]

Answer:

You will have 128 orange marbles

Step-by-step explanation:

Set this up as an equation

Variable x = number of orange marbles

3/8 = 48/x

Cross multiply

3 × x = 8 × 48

3x = 384

Divide both sides by 3 to isolate the variable

3x ÷ 3 = 384 ÷ 3

1x = 128

x = 128

128 orange marbles

Check work:

Substitute the variable x for the answer

3/8 = 48/128

Cross multiply

3 × 128 = 8 × 48

384 = 384

If the numbers equal, the answer is correct

6 0
3 years ago
Read 2 more answers
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Answer:


Since k is constant (the same for every point), we can find k when given any point by dividing the y-coordinate by the x-coordinate.

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8 0
3 years ago
Helpp ill mark u as brain list​
SCORPION-xisa [38]

Answer:

the second one

-1 -2

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5 1

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3 years ago
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