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True [87]
3 years ago
7

Whats the answer plesee and thank you!!!!

7D%20" id="TexFormula1" title=" \frac{4}{9} = {36}{n} " alt=" \frac{4}{9} = {36}{n} " align="absmiddle" class="latex-formula">
​

Mathematics
1 answer:
aivan3 [116]3 years ago
4 0
N=1/81 Look at the pic for more details and i got the pic from photomath

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Giuliana has 22 quarters and dollar coins worth a total of $10.75.Which equation can be used to find d, the number of dollar coi
Ganezh [65]
0.25(22 - d)+d=10.75
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3 years ago
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Suppose PR = 54, solve for QR<br> 4x-1<br> 3x-1<br> P<br> R
Svet_ta [14]

Answer:

QR = 23

Step-by-step explanation:

P, A, and R are collinear.

PR = 54

PQ = 4x - 1

QR = 3x - 1

To solve for the numerical length of PR, let's generate an equation to find the value of x.

According to the segment addition postulate:

PQ + QR = PR

(4x - 1) + (3x - 1) = 54 (substitution)

Solve for x

4x - 1 + 3x - 1 = 54

Combine like terms

4x + 3x - 1 - 1 = 54

7x - 2 = 54

Add 2 to both sides

7x - 2 + 2 = 54 + 2

7x = 56

Divide both sides by 7

\frac{7x}{7} = \frac{56}{7}

x = 8

QR = 3x - 1

Plug in the value of x into the equation

QR = 3(8) - 1 = 24 - 1

QR = 23

5 0
3 years ago
HELP ASAP!!!! PLSS!!!
Ne4ueva [31]

Answer:

9/32

Step-by-step explanation:

3/4 of 3/8 is 0.28125 or 9/32

3 0
3 years ago
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The garden has 20 rows of crops and one half of the rows are planted with corn. How many rows are planted with corn?
max2010maxim [7]
20 x 1/2 = 10

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3 years ago
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Which of the sets of equations represent the two lines graphed?
Oksi-84 [34.3K]

Answer:

B) y = x + 2 and y = -x - 4

Step-by-step explanation:

Let the equation of a straight line with x-intercept 'a' and y-intercept 'b' be

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The line with positive slope has x-intercept a=-2 and y-intercept b=2.

Its equation is:

\frac{x}{ - 2}  +  \frac{y}{2}  = 1

Multiply through by 2

- x + y = 2

Solve for y,

\boxed {y = x + 2}

For the line with a negative slope,

the x-intercept is a=-4 and the y-intercept is b=-4

Its equation is

\frac{x}{ - 4}  +  \frac{y}{ - 4}  = 1

Multiply through by -4

x + y =  - 4

Solve for y

\boxed {y =  - x - 4}

4 0
3 years ago
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