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Drupady [299]
3 years ago
8

Solve Q=3a+5ac for a

Mathematics
1 answer:
lilavasa [31]3 years ago
8 0
Here is how you solve... 

Q= 3a+5ac 

take out the common variable.
Q= a(3+5c)

get A by its self so divide each side by (3+5c).
Q/a(3+5c)= a(3+5c)/(3+5c)

Q/a(3+5c)=A

So your answer is A= Q/a(3+5c)

hope that helped.
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Which equation could represent the relationship shown in the scatter plot?
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This is a negative relationship as the line falls as you read it from left to right. That eliminates choice C. Next, it appears the line of best fit would have a y intercept around 10 on the y axis and then fall down and to the right cutting the data. Note that choices A and B have y intercepts that don't make sense for the data. Choice D does have a y intercept of 10 and a negative slope.
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4 years ago
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a local hamburger shop sold a combined total of 456 hamburgers and cheeseburgers. The number of cheeseburgers sold was three tim
Ganezh [65]
H + c = 456
c = 3h

h + 3h = 456
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4 0
4 years ago
From the top of a vertical tower, 331 feet above the surface of the earth, the angle of depression to a doghouse is 28 degrees 8
Elena L [17]

Answer:

619.13 feet

Step-by-step explanation:

Please find the attachment.

Let x represent the distance between doghouse to the foot of the tower.

We have been given that from the top of a vertical tower, 331 feet above the surface of the earth, the angle of depression to a doghouse is 28 degrees 8'. We are asked to find the distance between doghouse to the foot of the tower.

First of all, we will convert our given angle into degrees as it is given in degrees and minutes.

We will divide 8 by 60 to convert 8 minutes into degrees as:

\frac{8}{60}=0.13333

The doghouse, tower and angle of depression forms a right triangle with respect to ground, where, 331 feet is opposite side and x is adjacent side to angle 28.13 degrees.

\text{tan}=\frac{\text{Opposite}}{\text{Adjacent}}

\text{tan}(28.13^{\circ})=\frac{331}{x}

x=\frac{331}{\text{tan}(28.13^{\circ})}

x=\frac{331}{0.534623339864}

x=619.12747783

Upon rounding to nearest hundredth, we will get:

x\approx 619.13

Therefore, the doghouse is 619.13 feet far from the foot of the tower.

6 0
3 years ago
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creativ13 [48]
The factors are all the possible things you would multiply to get the number. So finding the 2 middle numbers, in this case is 21 and 28 and multiplying them, you get 588. If you're not sure if that's right, take the number on the left or right of the 2 middle numbers, 14 and 42. The product of these 2 numbers are also 588. So your number is 588.
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The music teacher receives 9 boxes of records. There are 6 records in each box. She gives them out to the third graders and has
WITCHER [35]

Answer:

there are 49 third graders that received records.

Step-by-step explanation:

assuming that their is 1 record per third grader

1)              6(9)

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2)             54-X=5

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3)              -X(-1)=-49(-1)

4)                 X=49

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