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3 years ago

I need to know what the answer is!?

Mathematics

2 answers:

ivanzaharov [21]3 years ago

5 0

Answer:

$\boxed{A. 2}$

Step-by-step explanation:

Hey there!

Well we first need to solve the top part.

15 + 5 * 3

5*3 = 15

15 + 15 = 30

3^2 + 6

3*3 = 9

9+6 = 15

Now we have 30 ÷ 15 = 2.

Hope this helps :)

ArbitrLikvidat [17]3 years ago

3 0

Answer:

Step-by-step explanation:

Use PEMDAS

First simplify the exponent (9)

Next multiply 5 and 3 (15)

Now add 15 and 15 (30)

Add 9 and 6 (15)

Lastly simply 30 by 15 (2)

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An alloy is a mixture of metals. Suppose that a certain alloy is made by mixing 50 g of an alloy containing 12% copper with 78 g

givi [52]

Given :

An alloy is a mixture of metals. Suppose that a certain alloy is made by mixing 50 g of an alloy containing 12% copper with 78 g of an alloy containing 92% copper.

To Find :

How many grams of copper are in the resulting mixture what percentage of the resulting mixture is copper.

Solution :

Mass of copper in 50 gm alloy = $50\times 0.12 = 6\ gram$ .

Mass of copper in 78 gm alloy = $78\times 0.98 = 76.44\ gram$ .

Total mass of copper, ( 6 + 76.44 ) gm = 82.44 gram.

Percentage of copper in resulting mixture :

$\%=\dfrac{82.44}{50+78}\\\\\%=64.4\ \%$

Hence, this is the required solution.

8 0

3 years ago

Someone Please help me with this question Ill give brainliest and 50 Points.

Ilia_Sergeevich [38]

Answer:

3X+30 30/3=10 10X3=30 ALSO FOR X-5 x=10 so 10-5=5

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

There are 24 students in a class, and three of them are named Madison. There are no other students in the class with the same na

Katena32 [7]

Answer:

Mizuki is here to help! The answer is D!

Step-by-step explanation:

Ok... So there are 24 students in the class and no other students in the class has the same name right? So the fraction should be $\frac{3}{24}$ since there are three madisons, which will be 0.125!