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3 years ago

Math Help? 18 Points

Mathematics

2 answers:

Semenov [28]3 years ago

7 0

The answer is $45 for 9

bogdanovich [222]3 years ago

5 0

All of them is multiply by 7 but it say it is discount which means 7 minus 2 is 5 and 5 times 9 is 45

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Cual es el suplemento del angulo de 134 grados

AleksAgata [21]

Answer:

El suplemento es 46°

Step-by-step explanation:

180° -134° = 46°

7 0

2 years ago

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Solving Inequalities Unit Test. To see questions please go to PDF attachment below. You may not be able to access if you are on

Lostsunrise [7]

Alright, I'll explain them as well.
1. The answer is 7, The open end of the sign is always to the larger number.
2. The answer is 4, and again, the open end of the sign is always to the bigger number.
3. The answers is two, and as before, 2 is the only number that will not make it negative or 0 and make the larger number be to the open end of the sign.
4. I'm not entirely sure on this one, so I won't answer it because I don't want to be the reason you get it incorrect.
5. For this one, divide 180 by 2.25, this will give you 80. The inequality should be 2.25k ≥ 180, k <span>≥ 80.
I hope this helps, have a nice day :)</span>

5 0

4 years ago

There are two peice pf gold and silver alloy. The ratio between the gold and silver in the first piece is 2:3, in the second pei

STALIN [3.7K]

Answer:

1 grams of one of the alloy; and
7 grams of the other corresponding alloy.

Step-by-step explanation:

The ratio between the gold and silver in the first piece = 2:3

The ratio between the gold and silver in the second piece =3:7

The ratio in the mixture = 5:11

We want to have 8 gram of the new mixture.

Let the gram of alloy taken from the first piece=x

Therefore: gram of alloy would be taken from the second piece=(8-x)

This gives:

$\dfrac{2}{5}x+ \dfrac{3}{10}(8-x)=\dfrac{5}{16}*8$

We simplify the equation above for the value of x.

$\dfrac{2x}{5}+ \dfrac{3(8-x)}{10}=\dfrac{5}{2} \\\dfrac{4x+24-3x}{10}=\dfrac{5}{2}\\\dfrac{x+24}{10}=\dfrac{5}{2}\\2x+48=50\\2x=50-48\\2x=2\\x=1$

Therefore to create 8 gram of gold and silver alloy with gold-silver ratio 5:11, we take 1 grams of one of the alloy and 7 grams of the other alloy.

3 0

3 years ago

Period Posers question: Mo's number has 2 periods, in one period he has a 7 in the hundreds place in the other he has an 8 in th

Sidana [21]

780,120?

Attention:check before using this answer it may not be right.
Thank you.

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3 years ago

According to the distributive property, a(5 + b) =

WINSTONCH [101]

The answer would be B

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3 years ago

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