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Kruka [31]
3 years ago
5

A cafeteria table has an area of 21 square feet. If three talbes are pushed together, what is the combined area of the talbes

Mathematics
2 answers:
Shtirlitz [24]3 years ago
6 0
The combined area of the tables would be 63.
Solnce55 [7]3 years ago
6 0

Answer:

Step-by-step explanation:

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Please help
bezimeni [28]

Answer:

26-4s=9s

26-(4s-9s)=0

26+5s=0

5s=-26

ans: s= -26/5

-3r+10=15r-8

-3r-15r=-8-10

-18r=-18

18r=18

ans: r=1

-9(t-2)=4(t-15)

-9t+18=4t-60

-9t-4t=-60-18

-13t=-78

13t=78

ans: t=26

THERE U GO! :D

5 0
2 years ago
Read 2 more answers
Kate decides to replace all the lights in her college apartment with energy saving light bulbs beginning this month. The packagi
tatyana61 [14]

Answer:

Kate's electric bill will be $9 for this month for bulb use only.

Step-by-step explanation:

Given:

Electricity bill lass month from bulb use = $12

Using new bulbs percent decrease in electricity = 25%

We need to find this month electric bill for bulb use.

Solution:

First we will find the reduction in bill after using new bulbs.

reduction in bill after using new bulbs can be calculated by percent decrease in electricity using new bulb multiplied by last month Electricity bill from bulb use only.

framing in equation form we get;

reduction in bill after using new bulbs = \frac{25}{100}\times 12 =\$3

Now we will find this month electric bill for bulb use only.

this month electric bill for bulb use only can be calculated by subtracting reduction in bill after using new bulbs from last month electric bill for bulb use only.

framing in equation form we get;

this month electric bill for bulb use only = \$12-\$3=\$9

Hence Kate's electric bill will be $9 for this month for bulb use only.

3 0
3 years ago
Favorite subject quick
kobusy [5.1K]

Answer:

Math

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Is 0.78 a rattional number
ipn [44]

Answer:

Yes

Step-by-step explanation:

A rational number can be expressed as a quotient of two integers. Therefore 78/10 = 39/5 = 0.78 represents a rational number between 7.7 and 7.9. Answer: 39/5

8 0
2 years ago
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Write the expression (4x-2)•6(2x+7) in the form of a quadratic expression ax^2+bx+c. What are the values of the coefficients of
Dafna1 [17]

Answer:

9

Step-by-step explanation:

7 0
3 years ago
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