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olga nikolaevna [1]
3 years ago
7

A. 2 • (3(5 + 2) - 1)

Mathematics
1 answer:
tankabanditka [31]3 years ago
5 0

Step-by-step explanation:

2(3(7)-1)

= 2(21-1)

=2(20)

=40

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skelet666 [1.2K]

Answer:

This is true.

Step-by-step explanation:

Step 1: see that √27 is the same as √3*3*3 and thus 3√3

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Comment if there is any step that requires more details...

3 0
3 years ago
Read 2 more answers
Sophia pays $19.99 membership fee for an online music store. If sophia purchases n songs for $0.99 each write the expression for
Alona [7]

Answer:

The expression for the total cost is x = 19.99 + 0.99n .

Step-by-step explanation:

Let us assume that the total cost be x.

As given

Sophia pays $19.99 membership fee for an online music store.

If sophia purchases n songs for $0.99 each .

Than the expression becomes

Total cost = Membership fee + Cost of n songs

x = 19.99 + 0.99n

Here n represented the number of songs.

4 0
3 years ago
Латна монтаж на работа
Bezzdna [24]

Answer:

$183.75

Step-by-step explanation:

divide by 12 (hours)

147/12=12.25

multiply by 15 (hours)

12.25*15=183.75

Hope this helps! :)

4 0
3 years ago
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