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3 years ago

What is the value of Fraction 1 over 2x3 + 3.4y when x = 2 and y = 5?

Mathematics

1 answer:

Triss [41]3 years ago

7 0

Answer:

C.21

Step-by-step explanation:

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3x=-5y 6x-7y=17 Solve the equation

love history [14]

3x = -5y -------------- (1)
6x - 7y = 17 --------- (2)

From (1):
3x = -5y
x = -5/3 y ---------- sub into (2)

6 (-5/3 y) - 7y = 17
-10y - 7y = 17
-17y = 17
y = -1 ------------ Sub into (1)
3x = -5 (-1)
3x = 5
x = 5/3

Ans: x = 5/3, y = -1

7 0

3 years ago

A car has a windshield wiper on the driver's side that has total arm length of 10 inches. It rotates

son4ous [18]

Answer:

75.44 Square Inches

Step-by-step explanation:

The diagram of the problem is produced and attached.

To determine the area of the cleaned sector:

Let the radius of the larger sector be R

Let the radius of the smaller sector be r

Area of the larger sector $=\frac{\theta}{360}X\pi R^2$

Area of the smaller sector $=\frac{\theta}{360}X\pi r^2$

Area of shaded part =Area of the larger sector-Area of the smaller sector

$=\frac{\theta}{360}X\pi R^2-\frac{\theta}{360}X\pi r^2\\=\frac{\theta \pi}{360}X (R^2- r^2)$

From the diagram, R=10 Inch, r=10-7=3 Inch, $\theta=95^\circ$

Therefore, Area of the sector cleaned

$=\frac{95 \pi}{360}X (10^2- 3^2)\\=75.44$ Square Inches$

7 0

3 years ago

On a shopping trip kellen spent $3 on a bus ticket $9 on a book and $5 after the trip . How much money did he start with

BaLLatris [955]

He would have $17 9+3=12 12+5=17

4 0

3 years ago

7) 72, 43, 15, 66, 32, 72, 52, 19, 28, 81 Mean : Median Mode Range

adell [148]

Mean (Average) 48
Median 47.5
Range 66
Mode 72, appeared 2 times
Geometric Mean 41.680398411848
Largest 81
Smallest 15
Sum 480
Count 10

8 0

2 years ago

1/6m=5/8 i can't slove this question 8th Grade Math

murzikaleks [220]

we are given

$\frac{1}{6} m=\frac{5}{8}$

Since, we have to solve for m

so, we will try to isolate m on anyone side

so, firstly , we will get rid of 1/6

so, we can multiply both sides by 6

$6*\frac{1}{6} m=6*\frac{5}{8}$

$m=6*\frac{5}{8}$

now, we can simplify right side

$m=3*\frac{5}{4}$

now, we can multiply them

and we get

$m=\frac{15}{4}$ ...........Answer

4 0

2 years ago

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