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weqwewe [10]
3 years ago
11

What is the first step in evaluating the expression shown below? (12.9 – 3.1) × 6.2 – 2 + 43

Mathematics
2 answers:
Oxana [17]3 years ago
7 0

Answer:

Step-by-step explanation:

(12.9-3.1)*6.2-2+43  PEDMA

9.8*6.2-2+43  Parenthesis

60.76-2+43  Multiply

101.76  add and subtract

Georgia [21]3 years ago
6 0

Each batch of cookie mix need 0.4 cups of sugar, and each batch can make 16 cookies. If Ashley is making 4 batches of cookies, how much sugar does she need?

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Terrence finished a word search in 3/4 the time it took Frank. Charlotte finshed the word search in 2/3 the time it took Terrenc
stealth61 [152]

Answer: Charlotte finished the word search in 16 minutes.

Step-by-step explanation:

Frank finished the word search in 32 minutes.

Terrence finished a word search in 3/4 the time it took Frank. This means that the time it took Terrence to finish the word search would be

3/4 × 32 = 24 minutes.

Charlotte finished the word search in 2/3 the time it took Terrence. This means that the time it took Charlotte to finish the word search would be

2/3 × 24 = 16 minutes

6 0
3 years ago
I need to do this it due tommorow
Ierofanga [76]

Answer:

14

Step-by-step explanation:

when you add all the numbers together you get 14, also where you put the line you can see that the line is a 3 and 5 minus 2 is 3. The next corner next to the 3 is 1 cm because if you look at the horizontal 2 it matches up with the horizontal 1 and 2 minus 1 is 1.

8 0
2 years ago
Mariana solved the equation below. Identify her ERROR and EXPLAIN what she did wrong. -3(2x-4)=-12 -6x-12=-12 -6x=0 x=0
nydimaria [60]

Answer:

Her error was multiplying -3 and -4 which gives +12 but she wrote -12 instead

Step-by-step explanation:

Mariana workings:

-3(2x - 4) = -12

-6x - 12 = -12

Her error was multiplying -3 and -4 which gives +12 but she wrote -12 instead

-6x = 0

x=0

Correct workings:

-3(2x - 4) = -12

-6x + 12 = - 12

-6x = -12 - 12

-6x = -24

x = -24/-6

x = 4

8 0
3 years ago
Find the missing number so that the equation has no solutions.<br> 3x - 16 =<br> _x + 15
krok68 [10]

Answer:

3x=16

×=3.5

3.5+15=18.5

6 0
4 years ago
PLZ I NEED THIS ASAP!!! ILL GIVE YOU BRAINLIST!!!!
dusya [7]

Answer:

x and y do not have a proportional relationship. The constant would be 1.7

Step-by-step explanation:

The reason for this is because as the miles increase they are not following a straight pattern. While 14+14=28 and 28+14=42, 42+14 doesn't equal 70. Even if you think about it in a sense of multiplication, while 14x2=28, 28x2 does not equal 42. What should be done is that the opposite factor of each number should be added together and divided by 3. So 28/14=2, 42/28=1.5, and 70/42=1.6. Then you should take the numbers 2, 1.5, and 1.6, add them together and divide by 3. The answer that you should recieve is 1.7.

Hope that helped.

5 0
3 years ago
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