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Natalija [7]
2 years ago
5

Work out 47% of £9000

Mathematics
2 answers:
Grace [21]2 years ago
4 0
0.47x9000=4230 pounds
3241004551 [841]2 years ago
3 0
I think it’s 4,230






explanation:
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Misty wishes to obtain 85 ounces of a 40% acid solution by combining a 72% acid solution with a 25% acid solution. How much of e
Y_Kistochka [10]

13.15 ounces of 72% acid and 71.85 ounces of 25% acid are needed

<u>Step-by-step explanation:</u>

Total mass of acid required= 85 ounces

Let the mass of 72% acid be 'a'

Let the mass of 25% acid be 'b'

a + b = 85

b = 85-a

85(40/100) = a(72/100) + b(25/100)

85(2/5) = a(72/100) +(85- a) (25/100)

34 = (72a/100) + (2125/100) - (25a/100)

34 - (2125/100) = (72a + 25a) /100

(3400-2125)/100 = 97a /100

97a = 1275

a =  13.15 ounces

b = 85 - 13.14

b = 71.85 ounces

13.15 ounces of 72% acid and 71.85 ounces of 25% acid are needed

4 0
3 years ago
Lee has a jar of 100 pennies. She adds groups of 10 pennies to the jar. She adds 5 groups. What numbers does she say?
Tanzania [10]
5 groups x 10 = 50+ 100= 150
7 0
3 years ago
)Why is 3 + (−5) equal to −2?
netineya [11]
Because + and - make - which makes you left with 3-5 which equals to -2 because it gets negative.
7 0
3 years ago
PLEASE ANSWER ASAP WILL MARK BRAINLIEST!!
Ber [7]

Answer:

12

Step-by-step explanation:

(5/25)(15/24)

3 0
2 years ago
Type the correct answer in the box. Use numerals instead of words.
stiks02 [169]

Answer:

78

Step-by-step explanation:

(-5)•(-5) + 3•21= 25+ 63= 78

7 0
3 years ago
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