What is the sum? 2/13 + 5/13 a. 10/169 b 7/26 c 7/13 d 10/13

Answers

Answer 1

Answer: $\sf(2)/(13)+(5)/(13)$

Add the numerators and keep the denominator:

$\sf(2+5)/(13)\rightarrow(7)/(13)$

Answer 2

Answer: I'm pretty sure it's 7/13 because u do not change the denominators when u are adding they stay the same. And 2+5 is 7 the answer is c 7/13

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What are the coordinates of the vertex of the table? Is it a minimum or a maximum?x y 0 1 -1 -2 -2 -3 Question 1 options: A.(-4, 1); minimum B.(-2, -3); maximum C.(-2, -3); minimum D.(1, 0); maximum. pleeeeez help me

A vegetable garden and a surrounding path are shaped like a square that together are 11 feet wide. The path is 2 feet wide. Fins the total area of the veget garden and path.

Answers

The area of a square is found by S^2 where S is the length of a side.

The garden and path are 11 feet wide, so the total area for both is 11^2 = 121 square feet.

The length of a side of just the garden would be 11 - 4 ( 2 feet of path on both sides) = 7 feet

The area of the garden would be 7^2 = 49 square feet.

the area of the path would be the total area minus the area of the garden: 121-49 = 72 square feet.

Wade's grandmother gave him $100 for his birthday. Wade wants to save his money to buy a new MP3 player that cost $275. Each month, he adds $25 to his MP3 savings. Write an equation in slope-intercept form for x, the number of months that it will take Wade to save $275

Answers

Answer:

The answer is:

275 = 25X + 100

Step-by-step explanation:

1.The equation for the slope- intercept is:

y = mx + b

2. Recognize and value variables

x = number of months

y = the expected range to arrive

m = is the amount Wade earns per month

b = the amount of money saved.

3. Solve the equation for X which is the unknown.

275 - 100 = 25X

175 / 25 = X

X = 7

4. . Show the result

275 = 25(7) + 100

275 = 275

5. Wade will take 7 months to buy your MP3 if he saves 25 for each month.

7 months because after the 100 dollars u add u 25 7 times to get 275

Suppose theta= 11pi/12. How do you use the sum identity to find the exact value of sin theta?

Answers

The better way is, first we have to find the equivalent in degrees

$2\pi=360\º$

$(11\pi)/(12)=345\º$

now we can change this value to $-15\º$

how do we get an angle like this?!

$30\º-45\º=-15\º$

then

$sin(30\º-45\º)=sin(30\º)*cos(45\º)-sin(45\º)*cos(30\º)$

$\begin{Bmatrix}sin(30\º)&=&(1)/(2)\n\nsin(45\º)&=&cos(45\º)&=&(√(2))/(2)}\end{matrix}\n\ncos(30\º)&=&(√(3))/(2)\end{matrix}$

now we replace this values

$sin(-15\º)=(1)/(2)*(√(2))/(2)-(√(2))/(2)*(√(3))/(2)$

$sin(-15\º)=(√(2))/(4)-(√(6))/(4)$

$\boxed{\boxed{sin(-15\º)=sin(345\º)=(√(2)-√(6))/(4)}}$

Chevy has some yarn that he wants to use to make hats and scarves. Each hat uses 0.20.20, point, 2 kilograms of yarn and each scarf uses 0.10.10, point, 1 kilograms of yarn. Chevy wants to use 222 kilograms of yarn to make a total of 151515 items.Let hhh be the number of hats Chevy makes and sss be the number of scarves he makes.
Which system of equations represents this situation?

Answers

Answer:

The following system of equations represents the situation:

0.2h + 0.1s = 2

s + h = 15

Step-by-step explanation:

Hi there!

The total amount of yarn is 2 kg and we know that each hat uses 0.2 kg yarn and each scarf uses 0.1 kg. Then, the amount of yarn used per hat times the number of hats made, plus the amount of yarn used per scarf times the number of scarves made will be 2 kg.

h = number of hats

s = number of scarves

0.2h + 0.1s = 2

We also know that the total quantity of items made is 15, then, the number of hats plus the number of scarves will be 15:

s + h = 15

Then, we obtain the following system of equations:

0.2h + 0.1s = 2

s + h = 15

Only for curiosity, let´s solve the system:

Solve for h in the second equation:

h = 15 - s

Replace h in the first equation:

0.2(15 - s) + 0.1s = 2

3 - 0.2s + 0.1s = 2

-0.1s = -1

s = -1/-0.1

s = 10

Then, h = 5

Answer:

0.2h + 0.1s = 2

h + s = 15

Step-by-step explanation:

answer on khan

The cost of 3 pounds of almonds is $8.58. What is the cost of cherries per
pound?

Answers

Answer:

$2.86

Step-by-step explanation:

you just need to do 8.58/3

Gallon of cleaner are on sale for 50% off the regular price of $3.18. a customer buys one gallon and the cashier $5.00 The customer change is

Answers

50% off $3.18 = 3.18 X .50 = 1.59

3.18 minus discount of 1.59 = 1.59

Now 5.00 - total cost of 1.59 = 3.41 in change

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