What is the value of a in the equation 3 a+b = 54, when b = 9?
15
18
21
27

can someone help me with this?

Answer:

x + y = 12

20x + 35y = 270

Step-by-step explanation:

Let us represent:

The number of vans = x

The number of trucks = y

From the above question, we are told that:

A van can hold up to 20 standard crates, and a truck can hold up to 35 standard crates. If Brown Delivery Company needs to deliver exactly 270 standard crates at one time using 12 vehicles.

Hence, our system of equations is given as:

x + y = 12..... Equation 1

20 × x + 35 × y = 270

= 20x + 35y = 270...... Equation 2

Answer:

about 1809.56 ft^3

Step-by-step explanation:

πr2h

=  π×6^2×16

=  576π

=  1809.5573684677 feet3

Answer (assuming it is allowed to be written in slope-intercept form):

[tex]y = -\frac{2}{3} x + 1[/tex]

Step-by-step explanation:

When knowing a line's y-intercept and its slope, you can write its equation using slope-intercept form, or [tex]y = mx + b[/tex].

1) First, find the slope of the line. Read the graph and look at the two points marked on the line - they are (0,1) and (3,-1). Use the slope formula [tex]\frac{y_2-y_1}{x_2-x_1}[/tex] , substitute the x and y values of those points, and solve:

[tex]\frac{(-1)-(1)}{(3)-(0)} \\= \frac{-1-1}{3-0} \\= \frac{-2}{3}[/tex]

Thus, the line's slope is [tex]-\frac{2}{3}[/tex].

2) Now, use the slope-intercept formula, [tex]y = mx + b[/tex], to write an equation. Substitute the [tex]m[/tex] and [tex]b[/tex] for real values.

The [tex]m[/tex] represents the slope, so substitute [tex]-\frac{2}{3}[/tex]  in its place. The [tex]b[/tex] represents the y-value of the y-intercept, or the point at which the line crosses the y-axis. Looking at the graph, we can see that the line intersects the y-axis at (0,1). Thus, substitute 1 for [tex]b[/tex]. This gives the following equation and answer:

[tex]y = -\frac{2}{3} x + 1[/tex]

Answer:

Option A

Step-by-step explanation:

Any number that can be written in the form of a fraction [tex](\frac{p}{q})[/tex] will be a rational number.

From the given options,

Option (A)

Given expression [tex]\sqrt{\frac{x^2+2x-5}{2x^2-3x+4}}[/tex] can't be written in the form of a fraction [tex](\frac{p}{q})[/tex] (Without square root).

Therefore, given function is not a rational function.

Rest all options represent a rational function.

Option A will be the answer.  

1. 1/12 batches (0.0833333)

2. 2.83333 batches

3. 1.1667 batches

Explanation

1. 1 ÷ 12 = 1/12

2. 34 ÷ 12 = 2.83333

3. 14 ÷ 12 = 1.1667

Answer:

slope is 2/3

Step-by-step explanation:

To solve for slope: y2-y1 / x2- x1.

Two points can be (0,50) and (30,70) since they intercept.

70-50 / 30- 0 = 20/30 = 2/3.

The slope is also going 20 units up and 30 units across which gives you 2/3.

Answer:

238m^3

Step-by-step explanation:

Volume = lwh (length times width times height)

so do 4 x 7 x 8 1/2

this gets you 238m^3 (because you have to cube your answer with units)

Answer:

10inches

Step-by-step explanation:

Let the length of one side of the square be  a

If the diagonal of a square is 10√2 inches

According to pythagoras theorem

a²+a² = (10√2)²

2a² = 100(2)

2a² = 200

a² = 200/2

a² = 100

a = √100

a = 10

Hence the length of one side of the square is 10inches

Answer:

NaNx10^-23

Step-by-step explanation:

Answer:

75°

Step-by-step explanation:

AD and EH are parallel

So Angle GFE equals to angle FBA

And angle CBA equals 180°-angle FBA= 180°-105°= 75°

Please put the Brainlest

The value of x would be 75 degrees beacuse of corresponding angles on the same line of tranversal.

In literal sense, corresponding means pair wise angles. Like the right corner angles of two triangles etc. But usually we take them as: For two similar figures, the pair by pair similar angles of those two similar figures are called corresponding angles. They are of same measurement.

Given that AD and EH are parallel lines

So Angle GFE is equals to angle FBA.

And angle CBA equals to 180°

Angle FBA = 180°-105°

Angle FBA = 75°

Hence, The value of x would be 75 degrees beacuse of corresponding angles on the same line of tranversal.

Learn more about angles here:

https://brainly.com/question/2882938

#SPJ2

Step-by-step explanation: if its asking  how much money he spends in total you multiply

$3.25 x 5 = 16.25

Answer:

They will spend $16.25 on each bike for 5 hours, $16.25 x 2 = $32.50. They will spend $32.50 and will be left with $7.50.

Step-by-step explanation:

Answer:

19 five dollar bills

30 ten dollar bills

Step-by-step explanation:

x=number of $5 bills

y=number of $10 bills

x+y=49

x=49-y

5x+10y=395

substitute for x

5(49-y)+10y=395

245-5y+10y=395

245+5y-245=395-245

5y=150

5y/5=150/5

y=30

x=49-30=19

Answer:

3675

Step-by-step explanation:

105 x 35 = 3675

is there are 35 deers for every square mile, there must be 105 times as many in 105 miles

Answer:

3675 deer

Step-by-step explanation:

105 * 35 = 3675

Answer:

The ratio is 5:4 and the only one that fits is 25,20 so that's the answer.

Step-by-step explanation:

Answer:

i have done it (*_*)

add them together then you should get 180 add 16 into it which should giver you 196 then divide by 4 which should give you 14.

These are all the shapes

Answer:

i need points

Step-by-step explanation:

ndm

Answer: 3.50

Step-by-step explanation:

4 ounces x 3 tenders = 12ounces so 3 dollars. then 4 ounses so 50 cents. so 3.00 + 0.50= 3.50

Answer:

y=2x+10

Step-by-step explanation:

In line equations its helpful to write your line in the form y = ax + b. This helps because a is always the gadient of the line and b is always the y intercept.

In this case it is y=2x+3

All parallel lines have the same gradient. The gradient of this line = 2.

If the line crosses the x axis at x=-5, then when x =-5 y = 0.

If you put all this in the form y =ax + b you get 0 = 2(-5) +b

So all you need to do to find b is rearrange. b = 10.

Therefore your line has gradient 2 and y intercept 10.

y = 2x + 10

Answer:

0.25

Step-by-step explanation:

lets say you have half a cake

multiplying a decimal is the same as multiplying its counterpart

basically, you divide half a cake in half

0.25 of a cake, or 1/4

uwu

Answer:

0.25

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

(2*5) - 2 = 8

May Nilbin Be With You

Answer:

Angle BDC

Step-by-step explanation:

Complementary is angles that add up to 90 degrees

Answer:

Item 23 The table shows the results of randomly selecting colored marbles from ... Are you an educator? ... The marble was returned to the bag after each selection . ... results, what is the expected probability of randomly selecting a green marble ... A . 0.125 B . 0.20 C . 0.80 D . 1.0 Item 24 The six sides of a number cube are ...

Step-by-step explanation:

Answer:

b:0.20 i guess this is the answer.

Answer:

It would just be .8

Step-by-step explanation:

All your doing is changing the sign before the number

Answer:

100 times

Step-by-step explanation:

[tex]\frac{5.10^6}{5.10^4} \\=10^6.10^{-4}\\=10^{6-4}\\=10^2\\=100[/tex]

Answer:

Step-by-step explanation:

Answer:

240

Step-by-step explanation:

the answer is 240 bc if you divide 4 from 4:3 320/4 is 80 and use the 3 from 4:3 80x3 is 240

Answer:

42

Step-by-step explanation:

Answer:

[tex]42[/tex]°

Step-by-step explanation:

[tex]A+B+C=180[/tex]

all measures of a triangle add up to 180

the angle opposite of angle b on the triangle is [tex]48[/tex]°

[tex]48+90+C=180[/tex]

[tex]138+C=180[/tex]

[tex]C=42[/tex]°

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