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2 years ago

= 3x + 4, what is y when x is 1, 2, and 3

Mathematics

1 answer:

Sidana [21]2 years ago

6 0

Answer:

when x is 1 y is 7

when x is 2 y is 10

when x is 3 y is 13

Step-by-step explanation:

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Christiana and Marlena opened their first savings accounts on the same day. Christiana opened her account with $55 and plans to

PolarNik [594]

Answer: it will take 4 months for the amount to be the same and the amount would be $95

Step-by-step explanation:

Let x represent the number if months it will take for the two accounts have the same amount of money.

Christiana opened her account with $55 and plans to deposit $10 every month. This means that the amount that in the account after x months would be

10x + 55

Marlena opened her account with $35 and plans to deposit $15 every month. This means that the amount that in the account after x months would be

15x + 35

For the amount in the accounts to be the same, the number of months would be

15x + 35 = 10x + 55

15x - 10x = 55 - 35

5x = 20

x = 20/5

x = 4

The amount would be

15 × 4 + 35

= 60 + 35

= $95

8 0

3 years ago

Read 2 more answers

The sum of three numbers $x$ ,$y$, $z$ is 165. When the smallest number $x$ is multiplied by 7, the result is $n$. The value $n$

babymother [125]

You're given

x + y + z = 165

7x = n

n = y - 9

n = 9 + z

and you want to find xyz.

Solve the last three equations for x, y, and z :

7x = n → x = n/7

n = y - 9 → y = n + 9

n = 9 + z → z = n - 9

Substitute x, y, and z into the first equation and solve for n :

n/7 + (n + 9) + (n - 9) = 165

n/7 + 2n = 165

n + 14n = 1155

15n = 1155

n = 77

Now solve for x, y, and z :

x = 77/7 = 11

y = 77 + 9 = 86

z = 77 - 9 = 68

Then the product is

xyz = 11 • 86 • 68 = 64,328

6 0

2 years ago

Use the distributive property to remove the parentheses -9(-4x+3w-1)

Margarita [4]

Answer:

36x - 27w + 9

Explanation:

Multiply the outside by everything on the inside

7 0

2 years ago

Read 2 more answers

I need help!! Find the area of each shaded segment. Round your answer to the nearest 10th

guajiro [1.7K]

Given:

θ = 60°

Radius = 8 in

To find:

The area of the shaded segment.

Solution:

Vertically opposite angles are congruent.

Angle for the shaded segment = 60°

Area of the sector:

$$A=\pi r^2\times \frac{\theta}{360^\circ}$

$$A=3.14 \times 8^2\times \frac{60^\circ}{360^\circ}$

A = 33.5 in²

Area of the sector = 33.5 in²

Area of triangle:

$$A=\frac{1}{2} bh$

$$A=\frac{1}{2} \times 8\times 8$

A = 32 in²

Area of the triangle = 32 in²

Area of segment = Area of sector - Area of triangle

= 33.5 in² - 32 in²

= 1.5 in²

The area of the shaded segment is 1.5 square inches.

8 0

3 years ago

A store bought a leather couch at a cost of $500 and marked it up 140%. Bruce bought it and

Pepsi [2]

Answer:

$1,296

Step-by-step explanation:

5 0

2 years ago