3 years ago

I need this right now, which 3 are expressions.

Mathematics

2 answers:

Juliette [100K]3 years ago

6 0

The answer is b hopefully I helped

blondinia [14]3 years ago

6 0

Answer:

B, D, E

Step-by-step explanation:

B, D, and E are sentences with a minimum of two numbers and at least one math operation, an expression.

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Twice the sum of a number and 5 is equal to three times the difference of the number and 7. Find the number.

Alexandra [31]

Step-by-step explanation:

Let the required number be x.

According to the given information:

$2(x + 5) = 3(x - 7) \\ \\ \therefore \: 2x + 10 = 3x - 21 \\ \\ \therefore \: 10 + 21 = 3x -2x \\ \\ \therefore \: 31 = x \\ \\ \huge \red { \boxed{\therefore \: x = 31}}$

Hence the required number is 31.

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3 years ago

Can someone answer 5,6,7? can you also tell me how to solve them so i can do better in the future?

Alborosie

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3 years ago

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djverab [1.8K]

Answer:

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Step-by-step explanation:

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3 years ago

Which exponential equation is equivalent to the logarithmic equation below? log 478= a

marta [7]

$\hbox{if } \log_x y=z \hbox{ then } x^z=y \\ \\
\log 478=a \\ \downarrow \\
\log_{10} 478=a \\ \Downarrow \\ \boxed{10^a=478}$

The answer is A.

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3 years ago

Camille is packing moving boxes. She has one 4 cubic-foot box and one 7 cubic-foot box. How many cubic feet of clothing can she

adell [148]

Answer:

He can fit 11 ft^3

Step-by-step explanation:

Here, we want to get the volume it clothes that could fit into the two boxes

What we have to do here is to add the amount of space each of the box has to offer

Mathematically, we have this as;

7 ft^3 + 4 ft^3 = 11 ft^3

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3 years ago