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3 years ago

Can you help me with ratios?

Mathematics

2 answers:

miskamm [114]3 years ago

8 0

You didn’t add an equation or anything.

bija089 [108]3 years ago

7 0

Answer: yes I can help

Step-by-step explanation:

you divide by same factors.

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Please help me on #7

zhuklara [117]

Answer:

17.25

Step-by-step explanation:

34.50 divided by 2

5 0

3 years ago

Jazmine buys 12 pencil erasers. each costs $0.85. How much does Jazmine spend on the erasers before tax? *

andreev551 [17]

Answer:

Multiply them together on a calculator

12 x 0.85

My brother is borrowing my calculator so i dont have mine

Step-by-step explanation:

Hope that helped

8 0

4 years ago

4.1

Elina [12.6K]

Answer:

4.1 -

300/22= 13.65

so the answer is 13.63

4.2

distance/speed

330/110= 3

So it'll take 3 hours

4.3

sorry not sure for this one :(

7 0

3 years ago

Read 2 more answers

Assume that x and y are both differentiable functions of t and find the required values of dy/dt and dx/dt.

qwelly [4]

Answer:

$\displaystyle \frac{dy}{dt}=-\frac{33}{8}$

$\displaystyle \frac{dx}{dt}=\frac{3}{2}$

Step-by-step explanation:

x and y are differentiable functions of t, and we are given the equation:

$xy=6$

First, let's differentiate both sides of the equation with respect to t. So:

$\displaystyle \frac{d}{dt}\left[xy\right]=\frac{d}{dt}[6]$

By the Product Rule and rewriting:

$\displaystyle \frac{d}{dt}[x(t)]y+x\frac{d}{dt}[y(t)]=0$

Therefore:

$\displaystyle y\frac{dx}{dt}+x\frac{dy}{dt}=0$

We want to find dy/dt when x = 4 and dx/dt = 11.

Using our original equation, find y when x = 4:

$\displaystyle (4)y=6\Rightarrow y=\frac{3}{2}$

Therefore:

$\displaystyle \frac{3}{2}\left(11\right)+(4)\frac{dy}{dt}=0$

Solve for dy/dt:

$\displaystyle \frac{dy}{dt}=-\frac{33}{8}$

We want to find dx/dt when x = 1 and dy/dt = -9.

Again, using our original equation, find y when x = 1:

$(1)y=6\Rightarrow y=6$

Therefore:

$\displaystyle (6)\frac{dx}{dt}+(1)\left(-9)=0$

Solve for dx/dt:

$\displaystyle \frac{dx}{dt}=\frac{3}{2}$

5 0

3 years ago

will give brainslist!!!!! A local high school has 1250 students in grades 9 through 12. Twenty-eight percent of the students in

UNO [17]

Answer:

175 ride the bus

Step-by-step explanation:

28% of 1250 = 350

350 ÷ 2 = 175

7 0

3 years ago

Read 2 more answers

Can you help me with ratios?​

Can you help me with ratios?