3 years ago

Given a+b=7 and a–b=3, find: 2a·2b

Mathematics

1 answer:

nekit [7.7K]3 years ago

5 0

I believe the answer is 40

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Elena is buying cups and plates for her party. Cups are sold in packs of 8 and plates are sold in packs of 6. She wants to have

Svet_ta [14]

Answer:

For 80 people, Elena would need

14 packs of plates and 10 packs of cups

She would have at least 80 of each.

I am not completely sure of this, sorry if wrong.

Step-by-step explanation:

80 people

8 cups per pack

6 plates per pack

8, 16, 24, 32, 40, 48, 56, 64, 72, 80

6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84

LCM (least common multiple) = 24

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2 years ago

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Simplify. 14+{−2+3[1+3(−6−2)]} show how to solve as well with answer

frez [133]

It’s -57 thank me later

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3 years ago

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Zoe is solving the equation 3x – 4 = –10 for x. She used the addition property of equality to isolate the variable term as shown

kherson [118]

3x-4 = -10

3x-4 +4 = -10 +4

3x = -6

then you can divide it :

x = -6 : 3

x= -2

3 0

3 years ago

What is the symbol for 1.020____1.200<br> A:<<br> B:><br> C:=

slega [8]

Answer:

Step-by-step explanation:

1.020 is less than 1.200

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3 years ago

You and three friends are planning a trip. You want to keep the cost below $90 per person. Write and solve an inequality that re

velikii [3]

Answer: x < 360

Step-by-step explanation:

Let x be the total cost for the trip.

And, Here the total number of person = 4

Therefore, the cost for each person = x/4

And, According to the question, The cost must below $90 per person.

Therefore, x/4 < 90

⇒ x < 360

Which is the required inequality for the situation.

8 0

3 years ago