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Ivan
3 years ago
10

Abigail says that all the numbers ending 1 are prime. Is Abigail correct or incorrect

Mathematics
2 answers:
Arada [10]3 years ago
7 0
Incorrect.......................
patriot [66]3 years ago
6 0
Incorrect.
Go through the numbers and you'll find un-prime numbers ending in 1:
21, 81, 121,...
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One of u guys helped me but they keep returning it saying show your work>:(​
Rom4ik [11]

Answer:  She will need 36 yards of material.

Step-by-step explanation:

16 × 2¹/₄ can be done different ways,

First multiply ¹/₄ times 16. that is the same as dividing 16/4 = 4

Then multiply 2 times 16  2×16 = 32

Add 32 + 4 = 36

Another way is to change 2¹/₄ to an improper fraction and multiply

⁹/₄ × 16

   16

  <u> ×9</u>

   54  

<u> +9   </u>

 144

 

144/4 = 36

<u />

6 0
3 years ago
Read 2 more answers
Mary is serving pizza at her party. Including her parents, there are 25 people. Each person will get two slices of pizza and a g
lianna [129]

Answer:

7 pizzas and 9 cans of juice

Step-by-step explanation:

The answer is 7 pizzas because if you add the 25 people plus her parents (That would be two more people) is 27. Then you have to multiply 27×2 that would equal 54. So, now you know you need 54 slices but what you is the amount of pizzas needed. The next step would be to divide 54÷8 that would equal 6.75 but you can't buy 6.75 pizzas, and you can't buy 6 pizzas because than you would leave people outside. You will need to buy 7 pizzas. It is better to have left overs than leaving people outside.

For the amount of cans would be 9 because if you add again 25 people plus her parents it would be 27. Then you multiply 27×1 that is obviously 27. The next step would be to divide 27÷3 and it would equal 9. And that is how you get your answer.

4 0
3 years ago
The whole sales price for a chair is $165. A certain furniture store marks up the wholesalers price by 15%. Find the price of th
vichka [17]

Answer:

$189.75

Step-by-step explanation:

Whenever you want to find the percent of something, you need to turn the percent into a decimal. In this case, we need to find 115% of the wholesale price because there is a markup, so the cost will be higher.

115% as a decimal is 1.15. Here is how the equation will be set up:

$165 • 1.15 = $189.75

No rounding is necessary for this problem because it is already to the nearest cent.

4 0
3 years ago
If f(x) = 6x - 4, what is f(x) when x = 8?<br> оооо
Drupady [299]

Answer:

f(x)=44

Step-by-step explanation:

Replace the value of x with 8:

f(x)=6(8)-4\\ \\ 6\times8= 48\\ \\ 48 -4 =44\\ \\ f(x)=44

3 0
3 years ago
-5x + 11 __) Please show your work!
timofeeve [1]
-1 (5x 11) i hope that helps
5 0
3 years ago
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