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hjlf
2 years ago
9

Evaluate the following expression: (3 · 3)2 - 23

Mathematics
2 answers:
ycow [4]2 years ago
5 0
3 times 3 equals 9 and 2-23 equals 21

or you’re probably distributing so 3 times 2 equals 6 now 3 times 3 times -23 equals -69
basically the same thing all over again so sorry I tried to help
Kruka [31]2 years ago
4 0
This is really hard I’m going to help you just let me do the work
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If you have four quarters and three nickles how much money do you have
vovangra [49]

Answer:

$1.15

Step-by-step explanation:

3 0
2 years ago
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Can someone help me with this math homework please!
salantis [7]

Answer: h = 14

Step-by-step explanation:

7h-5(3h-8)-56 = -128

7h -15h+40-56 = -128

or, -8h-16= -128

or, -8h = -128 + 16

or, -8h = -112

or, 8h = 112

or, h = 112/8

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3 0
3 years ago
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16. Mum went shopping at the vegetable stand.
kondaur [170]

Good evening

Answer:

<em>a) the cost of one apple is €</em><em>0.9</em>

<em>b) the cost of one pineapple is €</em><em>5.4</em>

<em>c) the cost of two pineapples and six apples is €</em><em>16.2</em>

Step-by-step explanation:

Consider P the price of a pineapple

               A the price of an apple

A pineapple costs six times as much as an apple means P = 6A

Mum paid €7.20 for one pineapple and two apples means P + 2A = 7.20

then

6A + 2A = 7.20

then

8A = 7.20

then

A = €0.9  

Since P = 6A then P = 6×(0.9) = €5.4

the cost of two pineapples and six apples

= 2P + 6A

= 2P + P

= 3P

= 3×(5.4)

= €16.2

     

7 0
3 years ago
A construction company wants to hire carpenters for $220 a day and plumbers for $260 a day. The company wants to hire at least 1
joja [24]

Answer:


Step-by-step explanation:

Yes the company can hire 6 carpenters and 12 pumbers

So first lets find out how much it costs to have 6 carpenter for $220 a day.

$220 × 6 = $1320  this is how much it cost to pay 6 carpenters for one day.

Now lets find how much it cost to 12 plumbers at $260 a day.

$260 × 12 = $3120 this is how much it costs to pay 12 plumbers a day.

The total amount you have to pay to the workers is:

$3120 + $1320 = $4440

Your budget was $4500 so the total costs for the workers is $4440 which means you can hire those workers and you would still have $60.


3 0
3 years ago
(find unit rate) Julio runs 18.6 miles in 3 hours
Romashka-Z-Leto [24]

You do 18.6 ÷ 3 and that equals 6.2

6 0
3 years ago
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