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3 years ago

9

Help me please I’m not good at math

1 answer:

Deffense [45]3 years ago

6 0

Answer:

i think the answer is 7/4

You might be interested in

How do you convert fractions to decimals and percents

Levart [38]

Well when you convert fractions to decimals, you simply divide the numerator by the dominator.
To convert decimals to percents, you take the fraction and divide the numerator by the dominator and times that by 100.
For example, 4/25*100=16%

4 0

3 years ago

The length of a rectangle is three feet less than twice its width. If x

d1i1m1o1n [39]

So if the question says at most 30 sq ft than most likely the > is going to go this way even if it has a line that symbolizes equal or more so that kinda narrows it down to 2 and 4. The L is -3ft x 2 Id say 4. Hope I helped

5 0

3 years ago

If y = 3x^3 - 2x and dx/dt equals 3, find dy/dt when x = -2. Give only the numerical answer. For example, if dy, dt = 4, type on

Nadya [2.5K]

Answer:

$\frac{dy}{dt} = 102$

Step-by-step explanation:

<u>step(i)</u>

Given function y = 3 x³ - 2 x ... (i)

Differentiating equation (i) with respective to 'x'

$\frac{dy}{dx} = 3 (3 x^{2} ) - 2(1)$

Given x = -2

$(\frac{dy}{dx} ) x_{=-2} = 3 (3 (-2)^{2} ) - 2(1)$

$(\frac{dy}{dx} ) x_{=-2} = 36 -2 =34$

<u><em>Step(ii):-</em></u>

<u><em>we know that </em></u>

$\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

Given $\frac{dx}{dt} = 3 and \frac{dy}{dx} = 34$

$\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

substitute values $\frac{dx}{dt} = 3 and \frac{dy}{dx} = 34$

⇒ $34 = \frac{\frac{dy}{dt} }{3 }$

cross multiplication , we get

$\frac{dy}{dt} = 34( 3 ) = 102$

<u><em>Final answer</em></u>:-

$\frac{dy}{dt} = 34( 3 ) = 102$

8 0

3 years ago

What is 3 multiplied by 1 8/11 as a mixed number or fraction

marishachu [46]

Answer:

57/11 or 5 2/11

Step-by-step explanation:

Convert 1 8/11 into an improper fraction: 1 8/11 = 19/11.

Next, multiply this 19/11 by 3, obtaining 57/11.

This mixed numer is an improper fraction.

If you wish to go further, convert 57/11 into a mixed number:

57/11 = 5 2/11

4 0

3 years ago

Read 2 more answers

Hassan and Dionnie played a game of darts, and Dionnie scored 4 more points than Hassan. The total of their scores was 180. How

Varvara68 [4.7K]

Answer:

Let Hassan score be X

Then Dionnie score will be X + 4

: the sum of Hassan and Dionnie is 180

X + ( X + 4 ) = 180

X + X + 4 = 180

COLLECTING LIKE TERMS

2X = 180 – 4

2X = 176

DIVIDING EACH TERM BY 2

2X/2 = 176/2

X = 88

: Hassan scored 88 and Dionnie score 92

Step-by-step explanation:

6 0

2 years ago