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ArbitrLikvidat [17]
4 years ago
14

Rearrange the equation so q is the independent variable. -7q+12r=3q-4r

Mathematics
1 answer:
Liula [17]4 years ago
3 0

Answer:

  r = (5/8)q

Step-by-step explanation:

This means you want to express r in terms of q. Another way to say it is "solve for r."

Separate the variables by adding 4r+7q

  16r = 10q

Divide by the coefficient of r

  r = 10/16q

  r = (5/8)q . . . . simplify

You might be interested in
Write a two step equation involving division and addition that has a solution of x = 25
White raven [17]
5x+10=25
5 divides into all the number to simplify to 3 plug in 3 into the x value then to multiply 5 and 3 which is 15 than add to to equal 25
4 0
4 years ago
I need help, pls can somebody help on this, it due this Friday
rusak2 [61]

Answer:

To express percentages in decimal form, you start with the decimal on the right side of the percentage, then you bring the decimal two places to the left. So for example, for 5% it it 5.. when you bring the decimal two places to the left it becomes .05

We start with $371.93 then we multiply each percentage successively to this number

we work backwards

so we start with 5%

$371.93= .95 x X

X=$391.51

Then we take X and do the same process for 10%

$391.51= .90 x Y

Y = $435.01

again we take Y and do the same process for 25%

$435.01= .75 x Z

Z = $580.01

so the original price is $580.01

to find the total percent discount you take the total discounted price ($371.93) divided by the original price ($580.01) then you have 1 subtracted by the number. Finally, you multiply the number by 100 to change it to a percentage

so it's $371.93/$580.01 which = .64125

1 - 64125 = .35875 x 100= 35.88%

so your total percent discount is 35.88%

Hope this helps


5 0
3 years ago
Please help if u answer with a answer that is trolling I will report you
algol13

Answer:

230.5

Step-by-step explanation:

Formulas: a = 1/2(bh), a = bh

Rectangle 1: a = 6 x 8

a = 48

Base of the triangle: 9 + 6

15

Triangle 1: a = 1/2(15 x 24)

a = 180

Triangle 2: a = 1/2(4(13 - 8))

a = 2.5

48 + 180 + 2.5

230.5

<u>The area of the figure is 230.5.</u>

<u />

If this truly helps you out, help me out too and thank me or maybe even mark brainliest.

-Xax

6 0
3 years ago
BRAINLIEST TO RIGHT ANSWER.
frutty [35]

Answer:

A

Step-by-step explanation:

The area in step one is

a²+b² but that does not equal (a+b)²

6 0
3 years ago
Read 2 more answers
3. Mary bought a pair of speakers for $400. The following year, her friend bought the same speakers for $310.
anyanavicka [17]

Answer:

c

Step-by-step explanation:

take 400 multiply by 77.5% = 310

7 0
3 years ago
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