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MA_775_DIABLO [31]
3 years ago
10

How do you regroup 42-15

Mathematics
1 answer:
iragen [17]3 years ago
5 0
22+22-15 that's the answer
You might be interested in
Thissss please‍♀️ AND THANK YOUUU
3241004551 [841]

Answer:

5*5*5*5 = 625

3*3*3*3*3*3 = 729

5 0
2 years ago
Ted practices two types of swimming styles for a total of 50 minutes every day. he spends 20 minutes more practicing the breast
cluponka [151]

Answer:

see below

Step-by-step explanation:

butterfly = x minutes

breast = y minutes

total is 50 minutes

breast stroke = butterfly +20

Part A

x+y = 50

y = x+20

Part B

Substitute the second equation into the first

x+ (x+20) = 50

2x+20 = 50

2x+20-20 = 50-20

2x = 30

2x/2 = 30/2

x = 15

y = x+20

y = 20+15

y = 35 minutes

35 minutes on the breast stroke

Part C

45 minutes on the butterfly is not reasonable

We only have a total of 50 minutes

50-45 = 5

But he spend more time on the breast stroke ( 20 minutes more), but if he spend 45 minutes on the butterfly, he would have to spend less on the breast stroke.

4 0
3 years ago
Samson carries a big weighing 5.5 kg.How many grams is it ?​
Korvikt [17]

Answer:

5,500 grams

Step-by-step explanation:

it is a measurement in kilograms meaning onethousand grams. so its 5,500 grams

4 0
3 years ago
Read 2 more answers
two ships leave a port at the same time. the first ship sails on a bearing of 55° at 12 knots (natural miles per hour) and the s
Korvikt [17]

Answer:

37.59 nautical miles

Explanation:

Distance = Speed x Time

The speed of the first ship = 12 knots

Thus, the distance covered after 1.5 hours

\begin{gathered} =12\times1.5 \\ =18\text{ miles} \end{gathered}

The speed of the second ship = 22 knots

Thus, the distance covered after 1.5 hours

\begin{gathered} =22\times1.5 \\ =33\text{ miles} \end{gathered}

The diagram representing the ship's path is drawn and attached below:

The angle at port = 90 degrees.

The triangle is a right triangle.

Using Pythagorean Theorem:

\begin{gathered} c^2=a^2+b^2 \\ c^2=18^2+33^2 \\ c^2=324+1089 \\ c^2=1413 \\ c=\sqrt[]{1413} \\ c=37.59\text{ miles} \end{gathered}

The two ships are 37.59 nautical miles apart after 1.5 hours.

8 0
1 year ago
2a^(2) – (4b + c); a = –3, b = –2, and c = 1
vfiekz [6]

Answer:

= 25

Step-by-step explanation:

2 (-3)^2 - (4(-2) + 1)

2 (9) - (-8 + 1)

18 - (-7)

25

3 0
3 years ago
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