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Hunter-Best [27]
3 years ago
5

Please help. I will give Brainliest Simplify: 3 + 7 * 4

Mathematics
2 answers:
Blababa [14]3 years ago
7 0
If u know how to do pemdas u will get 21 as a a see
WARRIOR [948]3 years ago
5 0

Answer:

31

Step-by-step explanation:

7 times 4 = 28

add 3 equals 31

           Follow PEMDAS

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If for every 12 blue streamers there is 9 gold streamers, how many blue streamers will I have if I have 36 gold streamers?
neonofarm [45]

Answer:

You will have 48 blue streamers.

Step-by-step explanation:

This question can be solved by proportions, using rule of three.

We have that:

For 12 blue streamers, there are have 9 gold streamers. How many blue streamers are there when there are 36 gold streamers?

12 blue - 9 gold

x blue - 36 gold

Applying cross multiplication

9x = 36*12

Simplifying by 9

x = 4*12 = 48

You will have 48 blue streamers.

4 0
3 years ago
2. need help with this question
lara [203]

Answer:

First =  Poppy seed  = 3x10^-4 grams  = 0.0003 grams

Second  =  sesame seeds  =  3.64x10^-6 grams  = 0.00364 grams

third  = 250 pumpkin seeds 21 grams  = one seed 0.084 grams

Step-by-step explanation:

3.64x10^-6 kilograms *1000gr/Kilograms =  0.00364 grams

21/250 = 0.0084 grams one seeds

3 0
3 years ago
Please help! I will give brainliest and 5 stars!
Ierofanga [76]

Answer:

(A.) x = y - 4

Step-by-step explanation:

All you need to do is subtract the 4 from both sides, giving you the final equation as x = y - 4.

7 0
3 years ago
The world's fastest fish, a sailfish, swims at a of 69 miles per hour. Is the distance a sailfish swims propotial to the number
Eddi Din [679]
Yes, the distance a sailfish swims propotional to the number of hours it swims
4 0
4 years ago
108 identical books have a mass of 30 kg.Find
d1i1m1o1n [39]

Answer:

41.67 kg

72 books

Step-by-step explanation:

mass of 150 books = 150/108 × 30 kg

= 41.67 kg

number of books = 20/30 × 108 books

= 72 books

4 0
3 years ago
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