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prisoha [69]
3 years ago
6

Help!?!?!?!??!!!!!!!!!!!!!!

Mathematics
2 answers:
Fynjy0 [20]3 years ago
8 0

Answer:

Step-by-step explanation:

Answer d) looks good

Firlakuza [10]3 years ago
6 0

D. \frac{21 \: b}{10}  - 48 ✅

Step-by-step explanation:

- 6( \frac{1}{4}  b+ 10) + 4( \frac{9}{10}b  + 3) \\  =  \frac{ - 6 \: b}{4}  - 60 +  \frac{36 \: b}{10}  + 12 \\  =  \frac{ - 3 \: b}{2}  +  \frac{18 \: b}{5}  - 60 + 12 \\  =   \frac{ - 3 \: b \times 5}{2 \times 5}  +  \frac{18 \: b \times 2}{5 \times 2}  - 48 \\  =  \frac{ - 15 \: b + 36 \: b}{10}  - 48 \\  =  \frac{21 \: b}{10}  - 48

\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘

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Mean of four numbers a ,b, c, and d is 8 and mean of seven
Nana76 [90]

Answer:

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Step-by-step explanation:

<u>Mean of four numbers a, b, c, and d is 8:</u>

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<u>Mean of seven numbers x, y, z, a, b, c and d is 12:</u>

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<u>Substitute the sum of 4 numbers:</u>

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3 years ago
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QveST [7]

Answer:

There are 6 dimes and 9 quarters.

Step-by-step explanation:

Represent the number of dimes and the number of quarters by d and q.

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6 0
3 years ago
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