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Hatshy [7]
4 years ago
6

Solve for the indicated variable. a/b = c for b. I need help

Mathematics
1 answer:
makvit [3.9K]4 years ago
3 0
Multiply both sides by b
a=cb
divide both sides by c
a/c=b
b=a/c
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X−10y=12<br><br> 10x+10y=10 Addition Elimination
wariber [46]

Answer:

x = 2 and y = -1

Step-by-step explanation:

that is the solution above

3 0
2 years ago
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In the scale used on a blueprint, 14
Sati [7]

Answer:

On the scale 24 feet represents 62.06 feet.

Step-by-step explanation:

In the given  scale:

14 inch represents 3 feet

Now, covert both the parameter into same length parameter.

1 inch  =  0.08333  feet

⇒14  inch =  14  x 0.08333 = 1.16 feet

or, by conversion  14 inch = 1.16 ft

Hence, on the given scale, (14 inch = 1.16 ft ) represents 3 feet.

Let us assume that  24 feet represents k ft on the scale.

Then by RATIO OF PROPORTIONALITY:

\frac{1.16}{3}   = \frac{24}{k}  \implies k = \frac{24 \times 3}{1.16}  \\= 62.06

Hence, on the scale 24 feet represents 62.06 feet.

3 0
4 years ago
The value of x is ?
Lelechka [254]

Answer:

None of the choices are correct.

Step-by-step explanation:

Considering this a right triangle, we may use the law of sines or "sohcahtoa" to find the length of x.

cos(45) = x/100\sqrt{2}

which equates to about x = 74.29174812021

7 0
3 years ago
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Please help with this!
dimaraw [331]

Answer:

Expression is 2(l+w)

Step-by-step explanation:

l is length and w is width

5 0
3 years ago
At a chocolate store, 70% of the items are dark chocolate and 30% are milk chocolate. Also 20% of the items have nuts and 80% ar
Delvig [45]

Answer:

A. 13%

Step-by-step explanation:

let's suppose there's 1000 bars of chocolate in general

70 % dark = 700 dark choco bars

30 % milk = 300 milk choco bars

20 % have nuts = 200 bars have nuts

80 % don't have nuts = 800 bars don't have nuts

if 90 % of dark chocolate bars don't have nuts, that means 630 dark chocolate bars don't have nuts, but 70 have nuts

200 bars in general have nuts, if only 70 dark chocolate bars have nuts,

200 - 70 = 130

130 = 13%

7 0
3 years ago
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