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Artyom0805 [142]
3 years ago
15

What’s name of this?

Mathematics
1 answer:
Law Incorporation [45]3 years ago
7 0

Answer

D.pentagonal pyramid

Step-by-step explanation:

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Is 9/27 squared rational?
aliina [53]
No it is an irrational number i think

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When solving proportions, we set the cross products equal and then we ________.
Olin [163]
Multiply each number across from another
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A chef is going to use a mixture of two brands of Italian dressing. The first brand contains 9% vinegar, and the second brand co
tester [92]
First brand = A, second brand = B.

A + B = 249ml
9% A + 14% B = 13% 249ml

B = 249ml - A
9% A + 14% (249ml - A) = 13% 249ml

9A + 14 (249ml - A) = 13 * 249ml
9A + 3486ml - 14A = 3237ml
5A = 249ml
A = 49,8ml
<span>B = 249ml - A = 199,2ml
</span>
Answer: He should use 49,8ml of first brand and 199,2ml of second brand.

Also note: <span>That's an </span>approximation,<span> because </span>the volumes are not strictly additive<span>. For example: mixing 50ml pure ethanol with 50ml water will give you about 95ml of mixture. To get an accurate answer, you'd have to </span>measure<span> the volume of the final mixture and then divide your total alcohol content by </span>that<span>.</span>
8 0
3 years ago
3(7x) – 2(4 – x)<br> i need help please
ryzh [129]

Answer:

23x-8

Step-by-step explanation:

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2 years ago
Abby has $500 in her savings account. She earns simple interest at 5% per annum. Calculate the interest she earns after two year
kherson [118]

Answer:

50$

Step-by-step explanation:

5% of 500=25

If you earn 25 per year then in two years you will earn

25+25=50$

4 0
3 years ago
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