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antoniya [11.8K]
3 years ago
9

Which expression is equivalent to 21d + 18

Mathematics
2 answers:
sladkih [1.3K]3 years ago
5 0

Answer:

it’s c

Step-by-step explanation:

i’m smart

ra1l [238]3 years ago
4 0
C! Is the correct answer
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For each system of equations, drag the true statement about its solution set to the box
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INFINITELY MANY SOLUTION

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3 years ago
PLEASE HELP FAST! UNIT TEST and I NEED A GOOD GRADE.
Crank

Slope = -5

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4 years ago
Point D is at (3,-4) and is translated 5 units up
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Answer:

(-1,1)

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5 0
3 years ago
Help me please I’m begging you:(
alex41 [277]

Answer:

Chips = 14

Pretzel = 14

Cookie = 8

Popcorn = 13

Question Mark = 222

Step-by-step explanation:

First Equation:

Chips + Pretzel + Chips = 42

Third Equation: Chips = Pretzel.

This means that

Pretzel + Pretzel + Pretzel = 42

Pretzel = \frac{42}{3} =14

Chips = Pretzel

Chips = 14

Second Equation:

Cookie + Chips + Cookie = 30

We know that Chips = 14.

Cookie + 14 + Cookie = 30

Subtract 14 on both sides:

Cookie + Cookie = 16

Cookie = 16\div 2 =8.

Fourth Equation:

Cookie + Cookie + Popcorn = 29

We know that Cookie = 8.

8 + 8 + Popcorn = 29

16 + Popcorn = 29

Subtract 16 on both sides:

Popcorn = 13.

Question Mark:

(Popcorn + Popcorn) \times Cookie + Chips = (13 + 13) \times 8 + 14 = 26 \times 8 + 14 = 208+14=222

6 0
3 years ago
Read 2 more answers
A football field is 300 feet long. A sloth moving very quickly travels 60 feet every 5 minutes. Based on this ratio, how many mi
nalin [4]
25 minutes.

Explanation: if the field is 300 feet and the sloth travels 60 feet every 5 minutes, you would divide 300 feet by 60 feet to determine the distance the sloth can travel. That gives you 5, then you would multiple 5 by 5 minutes.

side note: there’s probably a simpler way to explain this
3 0
3 years ago
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