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3 years ago

Which of the following could be the lengths of the sides of a 45°-45°-90° triangle?

Mathematics

1 answer:

REY [17]3 years ago

4 0

I think the answer is c

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sheldon bought 4 1/2 kg of plant food. he uses 1 2/3 kg on his strawberry plant and used 1/4 kg for his tomato plant. how many k

fenix001 [56]

Answer:

Sheldon have left $2\frac{7}{12}\ kg$ of food.

Step-by-step explanation:

Quantity of food = $4\frac{1}{2}=\frac{9}{2}$ kg

Quantity used on strawberry plant = $1\frac{2}{3} = \frac{5}{3}\ kg$

Quantity used on tomato plant = $\frac{1}{4}\ kg$

Food left = Total - used on strawberry - used on tomato

Food left = $\frac{9}{2}-\frac{5}{3}-\frac{1}{4}$

Food left = $\frac{54-20-3}{12} = \frac{31}{12}$

Food left = $2\frac{7}{12}\ kg$

Therefore,

Sheldon have left $2\frac{7}{12}\ kg$ of food.

4 0

2 years ago

Write an equation for the relationship shown on this graph if the price per ticket is doubled.

vlabodo [156]

Answer:

y = 2x

linear equations are just finding the right ratio and putting it in y = mx+b format

this graph is saying that two dollars are earned for every ticket sold, a 2:1 ratio.

so the equation would be y = 2x, two being the amount of money collected for one ticket, and x being the number of tickets sold.

8 0

3 years ago

7th grade math help me plzzz

Kaylis [27]

Answer:

Step-by-step explanation:

I hope this helps

7 0

3 years ago

I need to know the answer

Ghella [55]

A (-4,2)
B (4,6)
C (4,2)

7 0

3 years ago

Read 2 more answers

Write a system of equations to describe the situation below, solve using any method, and Fill in the blanks.

Tatiana [17]

Answer:

1 haircut = 47 dollars

1 colouring = 98 dollars

Step-by-step explanation:

Let $x$ be equal to the cost of 1 haircut.

Let $y$ be equal to the cost of 1 colouring treatment.

<u>1) Form equations</u>

Equation 1: 3 haircuts + 1 colour = 239 dollars

⇒ $3x+y=239$

Equation 2: 2 haircuts + 1 colour = 192 dollars

⇒ $2x+y=192$

<u>2) Solve the system of equations</u>

Subtract equation 2 from equation 1 to cancel out y (elimination)

- $3x+y=239\\2x+y=192$

⇒ $3x-2x+y-y=239-192\\x=47$

Therefore, Natalie charges 47 dollars for 1 haircut.

Plug x back into one of the equations to solve for y

$2(47)+y=192\\94+y=192$

Subtract both sides by 94

$94+y-94=192-94\\y=98$

Therefore, Natalie charges 98 dollars for 1 colouring treatment.

I hope this helps!

4 0

3 years ago