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lara [203]
3 years ago
8

What is this help please

Mathematics
1 answer:
Sholpan [36]3 years ago
3 0
Answer: 3 x 7


Explanation:
So the question is asking you to multiply two prime numbers in order to get 21.
Since 3 and 7 are both prime numbers, you can express 21 as 3 x 7

Hope this helps! :)

Here is a list of prime numbers if it helps you. (prime numbers are in blue):

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For a new neighborhood, 1.4 acres of land will be split into 8 lots. How many acres of land
Iteru [2.4K]

Answer:

0.175

Step-by-step explanation:

8/1.4 = 0.175 which is how many each will have

5 0
2 years ago
Can someone please help I can't solve this problem!!!!!!!!!!!
notsponge [240]

Answer:

8 dolls

Step-by-step explanation:

METHOD 1:

Step 1: Convert 25% into decimal (0.25)

Step 2: Multiply by 32 (32 × 0.25 = 8)

METHOD 2:

25% of a number will be one-fourth of that number. Divide 32 by 4 to get 8 (or multiply 32 by 1/4).

6 0
2 years ago
Multiply 2/3 by 42, and then multiply that product by 10
Mrac [35]

Answer:

140 is the answer

Step-by-step explanation:

2/3 of 42 is 14 multiplied by ten is 140

Hope this helps ;)

7 0
3 years ago
ASAP WHATS THE ANSWER???
katrin [286]

Answer:

algebraic expression as they used variables

7 0
3 years ago
Which Is A Correct First Step For Solving This Equation? -5(4x-7)+8=3x
nordsb [41]

I'm not sure if this is a multiple choice question, so I will just solve the equation.

-5 (4x - 7) + 8 = 3x

-5 (4x + (-7)) + 8 = 3x

1. Distributive Property of Multiplication

(-5)(4x) + (-5)(-7) + 8 = 3x

2. Simplify

-20x + (-35) + 8 = 3x

3. Simplify again

-20x - 27 = 3x

4. Add 27 to both sides and then subtract 3x from both sides to get all the x's by themselves on the same side

-20x - 27 + 27 = 3x + 27

-20x - 3x = 3x + 27 - 3x

5. Simplify

-23x = 27

6. Divide

-23x / -23 = 27 / -23

7. Simplify

Answer:

<h2>x = - 27/23 ≈ -1.17</h2>

Hope this helps!

5 0
3 years ago
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