3 years ago

Which expression is equivalent to 8 times d times d

1 answer:

4 0

Answer:

That is, they are equivalent expressions. Two expressions are said to be equivalent if they have the same value irrespective of the value of the variable(s) in them. Example 1: Are the two expressions 2y+5y−5+8 and 7y+3 equivalent?

Step-by-step explanation:

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What’s the output?

4vir4ik [10]

The output would be 81

8 0

4 years ago

Three-fourths of a cake remains after a birthday party. Each serving is 1/16 of the cake. How many servings of the cake remain?

Novay_Z [31]

Answer:

3/4 = 12/16

Step-by-step explanation:

3 x 4 = 12

4 x 4 = 16

12/16 :)

6 0

3 years ago

3x + y = 19 , and x + 3y = 1. Find the value of 2x + 2y

soldi70 [24.7K]

$3x+y=19 \\
x+3y=1 \\ \\
\hbox{add the sides of the equations:} \\
3x+x+y+3y=19+1 \\
4x+4y=20 \\ \\ \hbox{divide both sides by 2:} \\
2x+2y=10$

The answer is d. 10.

6 0

4 years ago

Sabra joins a cooking club for $8.50 and pays $6.25 each month. She also joins a movie club for $12 and pays $3.75 each month. W

podryga [215]

Simplified expression for total amount spent is 10(2.05 + m)

Step-by-step explanation:

Step 1: Write expression for expense on joining cooking club for m months.

Expense = 8.50 + 6.25 × m

Step 2: Write expression for expense on joining movie club for m months.

Expense = 12 + 3.75 × m

Step 3: Calculate the total amount spent on both clubs

Total Amount = 8.50 + 6.25m + 12 + 3.75m = 20.5 + 10m = 10(2.05 + m)

6 0

3 years ago

A cat heart beats about 130 beats per minute .A kitten heartbeat can be as fast as 240 beats per minute.How many times does a ki

sineoko [7]

21,600 minutes because 1 hour equals 60 mins. while half in an hour is 30 mins. and 60 + 30 = 90 so you multiply 240 by 90 getting 21,600

4 0

3 years ago