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3 years ago

8.3+3.4y-0.5(12y-3)=

Mathematics

1 answer:

natulia [17]3 years ago

8 0

Answer:

Let's simplify step-by-step.

8.3+3.4y−0.5(12y−3)

Distribute:

=8.3+3.4y+(−0.5)(12y)+(−0.5)(−3)

=8.3+3.4y+−6y+1.5

Combine Like Terms:

=8.3+3.4y+−6y+1.5

=(3.4y+−6y)+(8.3+1.5)

=−2.6y+9.8

Answer:

=−2.6y+9.8

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3 years ago

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Alisiya [41]

Answer:

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Step-by-step explanation:

see the attached figure to better understand the problem

<em>Find the value of b</em>

we know that

in the right triangle ABC

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<em>Find the value of a</em>

we know that

in the right triangle ABC

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$cos(40\°)=BC/AB$

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3 years ago

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A number was written on the board. one student increased the number by 23, but another student decreased the number by 1. the fi

Softa [21]

Let the number be x.

First student increased the number by 23, therefore
⇒ x + 23

Second student decreased the number by 1, therefore
⇒ x - 1

The first student's result was 7 times greater than the result of the second student's, therefore
⇒ x + 23 = 7(x - 1)

----------------------------------------------
Solve for x:
----------------------------------------------
x + 23 = 7( x- 1)
x + 23 = 7x - 7
6x = 30
x = 5

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Answer: The number on the board is 5.
--------------------------------------------------------------------------------------------

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4 years ago

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