All categories

3 years ago

What is the value of 6x - 3y if x = 5 and y = -1?

Mathematics

2 answers:

Sergio [31]3 years ago

7 0

Answer:

G. 33

Step-by-step explanation:

$6x - 3y \\ 6(5) - 3( - 1) \\ 30 + 3 \\ 33$

Arisa [49]3 years ago

3 0

Now, if x = 5 and y = -1

6(5) -3(-1)

= 30+3

= 33

You might be interested in

A figure is composed of a semicircle and a right triangle. Determine the area of the shaded region. Use 3.14 for π and round to

Aliun [14]

Answer:

$A=9.5\ ft^2$

Step-by-step explanation:

we know that

The area of the shaded region is equal to the area of triangle plus the area of semicircle

$A=\frac{1}{2}bh+\frac{1}{2}\pi r^{2}$

we have

$b=4\ ft$

Find the height of the right triangle applying the Pythagorean Theorem

$5^2=h^2+4^2$

$h^2=9\\h=3\ ft$

The radius of the semicircle is half the height of triangle

$r=3/2=1.5\ ft$

substitute in the formula

$A=\frac{1}{2}(4)(3)+\frac{1}{2}(3.14)(1.5)^{2}$

$A=6+3.5=9.5\ ft^2$

5 0

3 years ago

Read 2 more answers

One positive number is five times another number is the difference between the two numbers is 1676 find the numbers

AleksAgata [21]

Answer:

The two numbers are -419 and -2095.

Step-by-step explanation:

5x=y

x-y=1676

----------------

x-5x=1676

-4x=1676

x=1676/-4

x=-419

5(-419)=y

y=-2095

4 0

3 years ago

Read 2 more answers

X/6 + 2x/3 = 5 what is the value of x in the equation

ycow [4]

The value of x is 6 in the equation.

Step-by-step explanation:

Given equation is;

$\frac{x}{6}+\frac{2x}{3}=5$

Taking least common multiple

$\frac{x+4x}{6}=5$

Multiplying both sides by 6

$6*\frac{5x}{6}=5*6\\5x=30$

Dividing both sides by 5

$\frac{5x}{5}=\frac{30}{5}\\x=6$

The value of x is 6 in the equation.

Keywords: linear equation, fraction

Learn more about linear equations at:

#LearnwithBrainly

5 0

3 years ago

If jeramiah can make 600 shirts in 8 hours how many hours with it take to make 1800

Vinil7 [7]

Answer:

24 hrs or a day

Step-by-step explanation:

I used cross multiplication.

600shirts =8 hrs

1800shirts=????

1800•8/600

=24

8 0

3 years ago

Akiko's bill at the restaurant was $14.05. She left a tip of 18% what is the tip amount (no rounding)

kozerog [31]

Answer:

$2.52

Step-by-step explanation:

8 0

2 years ago