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tekilochka [14]
2 years ago
15

Need help with 9 (a and b) plzzzz

Mathematics
2 answers:
Yanka [14]2 years ago
8 0
A) is 0.83 and idk how to do b)
Mashcka [7]2 years ago
3 0
0.83 cents for A and for b  and 46.245 because2.50times 18 equals 45 and 2.49 divided by 2 equals 1.245
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What is a / b (2x - 12) = c / d ; x ?
Alex17521 [72]

we are given

\frac{a}{b} (2x-12)=\frac{c}{d}

we can solve for x

We can isolate x

step-1: Multiply both sides by b/a

\frac{b}{a}*\frac{a}{b} (2x-12)=\frac{b}{a}*\frac{c}{d}

(2x-12)=\frac{bc}{ad}

step-2:Add 12 both sides

(2x-12)+12=\frac{bc}{ad}+12

2x=\frac{bc}{ad}+12

step-3: combine right side

2x=\frac{bc+12ad}{ad}

step-4:Divide both sides by 2

x=\frac{bc+12ad}{2ad}..............Answer

3 0
3 years ago
Can some one plz help I don't know how to do this
prohojiy [21]
This is a hard one so what you do is make a number line and put -5x, -9, and -24 hope this helps
4 0
3 years ago
What is the area of a square computer screen with 21 inch sides?
notka56 [123]
Side of the square computer screen = 21 inches
It is important to minutely read the details that are already given in the question. the most important information that is given in the question is that the computer screen ia square. Based on this information the answer to the question can be easily deduced.
Then
Area of the computer screen = (Side)^2
                                               = (21)^2 inches square
                                               = 441 inches^2
So the area of the square computer screen is 441 square inches. i hope the procedure is clear enough for you to understand.

6 0
3 years ago
3250-1250=1500+2(1250-500) is this true
exis [7]

Answer:

Its false because

Step-by-step explanation:

3250-1250=1500+2.(1250-500)

2000 = 1500 + 2 . 750

2000 = 1500 + 1500

2000 != 3000

Obviously 2000 isnt the same of 3000

5 0
3 years ago
Read 2 more answers
Which expression is equivalent to b^-3/ab^-3?
Mrrafil [7]
1/a

The b^-3 in the denominator and numerator cancel out
7 0
2 years ago
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