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Dafna11 [192]
3 years ago
7

4a/5 (10a-25b) pls help me !ill give brainlist

Mathematics
1 answer:
WITCHER [35]3 years ago
5 0

Answer:

8a² - 20ab

Step-by-step explanation:

4a/5 (10a - 25b)

8a² - 20ab

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If there are 40 boys and 60 girls in a room, fill out all of the possible ratios of boys to girls that could be made.
galina1969 [7]

40+60=100. So one person equals 1%, meaning 40% are boys and 60% are girls. By simplifying, we will find that possible ratios below the value of 100 are 40:60, 4:6, 2:3, and 20:30.

8 0
3 years ago
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2/3(x+6)=-18 what is the value of x
sladkih [1.3K]

Answer:

x = -33

Step-by-step explanation:

2/3(x+6)=-18

Multiply each side by 3/2

3/2*2/3(x+6)=-18*3/2

x+6 = -27

Subtract 6 from each side

x +6-6 = -27-6

x = -33

4 0
3 years ago
Please help me with these problems​
natita [175]

Check the picture below.

8 0
3 years ago
Help me plz and explain your answer to me
Vlad1618 [11]

Answer:

4.171\times10^6

Step-by-step explanation:

Given:

First Number = 97

Second Number = 4.3\times10^4

We need to find the product of two numbers in Scientific notation.

Product of two numbers means we need to multiply two number.

Also The proper format for scientific notation is a x 10^b where a is a number or decimal number such that the absolute value of a is less than ten and is greater than or equal to one or, 1 ≤ |a| < 10. b is the power of 10 such that the scientific notation is mathematically equivalent to the original number.

Decimal points are moved until there is only one non-zero digit to the left of the decimal point. The decimal number results as  a.

Number of decimal point moved needs to be counted. This number is b.

If decimal are moved  to the left b is positive.

If decimal are moved to the right b is negative.

If decimal are not moved b = 0.

scientific notation of a number can be written as a x 10^b and read it as "a times 10 to the power of b."

Hence the product is;

97\times4.3\times 10^4 = 417.1 \times 10^4

Expressing in Scientific Notation form we get

4.171 \times 10^6

Hence the Answer is 4.171 \times 10^6.

3 0
3 years ago
140 divided by 25 equals what? I need an answer fast
Harlamova29_29 [7]
It equals 5.6. ........
8 0
3 years ago
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