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Alina [70]
3 years ago
13

1) which problem can be solved using 3 * 7 = 21?

Mathematics
2 answers:
Luden [163]3 years ago
5 0
I agree with that answer
Alexeev081 [22]3 years ago
4 0

Answer:

21=3/7

Step-by-step explanation:

if you divide 21 by 7, you get 3. if you multiply 7x3 or 3x7, you get 21

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The area of a rectangle is 1,036 cm and its length is 74 cm.
Nikitich [7]

Answer:

(i) Breadth = 14 cm

(ii) Perimeter = 176 cm

Step-by-step explanation:

Given,

  • Area of a rectangle = 1036 cm²
  • Length = 74 cm

(i) Breadth = ?

We know that, Area of a rectangle = length × breadth.

Then,

1036 = 74 \times Breadth\\1036  \div 74 = Breadth\\\boxed{\bf\:14 \:cm = Breadth }

(ii) Perimeter of a rectangle = 2 (length + breadth)

Then,

Perimeter = 2(74 + 14)\\Perimeter = 2(88)\\\boxed{\bf\: Perimeter = 176 \: cm}

\rule{150pt}{2pt}

8 0
2 years ago
A student spends no more than 2 hours on his math and English homework. If math takes about twice as long as long as english. Ho
GarryVolchara [31]
E - English homework,  M - Math homework;
M + E ≤ 2 hours
M = 2 E
2 E + E ≤ 2 hours
3 E ≤ 2 hours = 120 minutes
E ≤ 120 : 3 
E ≤ 40 minutes
Answer:
The student will be able to finish his English homework in less or equal to 40 minutes. 
7 0
4 years ago
In how many ways can eight people line up from left to right for a group photo
horrorfan [7]

The answer is 8! or 40,320.

8*7*6*5*4*3*2*1=40,320

5 0
3 years ago
Read 2 more answers
Find the inverse of y= 2x^2-8​
ahrayia [7]

Answer:

f

−

1

(

x

)

=

√

2

(

x

+

8

)

2

,

−

√

2

(

x

+

8

)

2

Step-by-step explanation:

4 0
3 years ago
Is this right? I just need to make sure. :)
Sav [38]

Answer:

Yes, you are 100% correct! Good job!!!

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
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