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3 years ago

Help plz ill give u BRAINEST

Mathematics

1 answer:

d1i1m1o1n [39]3 years ago

3 0

Answer:

First option, relation 1 and relation 4

Step-by-step explanation:

Because they both cross one of the two axes once, which from what I remember, makes it a function.

Hope this makes sense, and please correct me if I'm wrong :)

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The frosty ice cream shop sells sundaes for $2 and banana splits for $3. On a hot day the shoot sold 8 more sundaes than banana

sashaice [31]

Let’s designate the number of banana splits sold as x. That means the number of sundaes sold is x + 8.

Now if we put this into an equation, also keeping in mind their costs, we get:
3(x) + 2(x + 8) = 156

Now to solve for x:
3x + 2(x + 8) = 156
3x + 2x + 16 = 156
5x = 140
x = 28

That means you’ve sold 28 banana splits and 36 sundaes! :)

7 0

4 years ago

The sum of a number and two times a smaller number is 98. The bigger number is 22 less than three times the smaller number.

Ghella [55]

The answer is 50 & 24

x - the bigger number
y - the smaller number

<span>The sum of a number and two times a smaller number is 98:
x + 2y = 98

</span><span>The bigger number is 22 less than three times the smaller number:
x = 3y - 22

</span>x + 2y = 98
x = 3y - 22
________
3y - 22 + 2y = 98
5y - 22 = 98
5y = 98 + 22
5y = 120
y = 120/5
y = 24

x = 3y - 22
x = 3 * 24 - 22
x = 72 - 22
x = 50

8 0

3 years ago

PLEASE HELP ASAP. SOLVE FOR X AND Y. SHOW ALL WORK.

ss7ja [257]

The solution to the system of equations is (-3.88, 0.66) and (3.04, 1.09)

<h3>How to determine the solution to the system of equations?</h3>

The system of equations is given as:

x^2y + yx^2 = 20

1/x + 1/y = 5/4

Multiply through the equation 1/x + 1/y = 5/4 by 4xy

So, we have:

4x + 4y = 5xy

So, we have the following system of equations

4x + 4y = 5xy

x^2y + yx^2 = 20

Next, we plot the graph of the system of equations

4x + 4y = 5xy

x^2y + yx^2 = 20

See attachment for the graph of the system

From the attached system, we have the point of intersection to be

(x, y) = (-3.88, 0.66) and (3.04, 1.09)

Hence, the solution to the system of equations is (-3.88, 0.66) and (3.04, 1.09)

Read more about system of equations at

brainly.com/question/13729904

#SPJ1

6 0

2 years ago

The rate of change of the volume V of water in a tank with respect to time t is directly proportional to the cubed root of the v

Svetllana [295]

Answer:

The differential equation becomes -

$\frac{dV}{dt} = k\sqrt[3]{V}$ i.e. $\frac{dV}{dt} = kV^{\frac{1}{3} }$

Step-by-step explanation:

Given - The rate of change of the volume V of water in a tank with respect to time t is directly proportional to the cubed root of the volume.

To find - Write a differential equation that describes the relationship.

Proof -

Rate of change of volume V with respect to time t is represented by $\frac{dV}{dt}$

Now,

Given that,

The rate of change of the volume V of water in a tank with respect to time t is directly proportional to the cubed root of the volume.

⇒ $\frac{dV}{dt}$ ∝ $\sqrt[3]{V}$

Now,

We know that, when we have to remove the Proportionality sign , we just put a constant sign.

Let k be any constant.

So,

The differential equation becomes -

$\frac{dV}{dt} = k\sqrt[3]{V}$ i.e. $\frac{dV}{dt} = kV^{\frac{1}{3} }$

6 0

3 years ago

What is 8 21/40 I don't understand how to do it

yaroslaw [1]

Hey, there !

If you want to know it as a "improper fraction" , you can

Multiply the denominator from the front number
Whatever the denominator and front number is , you add it to the numerator

So, for this problem we first have the multiply the front number from the denominator

Like: 8 (40)
That gives us the answer of: 320

Now we have to add 320 to 21

Like: 320 + 21

That gives us the answer of:341

We keep our denominator (which is "40" )

Your improper fraction would be:

341 / 40

Good luck on your assignment and enjoy your day!

~MeIsKaitlyn:)

3 0

4 years ago

Read 2 more answers

Help plz ill give u BRAINEST ​

Help plz ill give u BRAINEST