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Hatshy [7]
3 years ago
14

1 5 x + 1 3 = −1 2 x + 8 3

Mathematics
1 answer:
AveGali [126]3 years ago
8 0

Answer: yap

Step-by-step explanation:

15x + 13 = - 12x + 84

15x + 12x = 84 -13

27x = 71

X = 71 / 27

X = 2.63

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Noah has 5 meters of rope. how many pieces of rope of length 1/2 meter can he cut from it?​
Allushta [10]

Answer:

d unit er result kobe dibe na pakka bagh new delhi news online news portal from Bangladesh House no ma'am I have done a good time to explore new ways of learning and smart ways of learning

3 0
3 years ago
there are 48 students in Mr. Kings art class 1/6 of the students prefer working with oil paints 3/8 of the students prefer worki
VARVARA [1.3K]

Answer:

22 students

Step-by-step explanation:

First find a common denominator, which will be 48 here since it is more convieniant. Then multiply have all denominators equal 48, multiplying 6 by 8 and 8 by 6 to get 8/48 and 18/48. Then add them together and subtract them the 26 from 48 to get 22.

8 0
4 years ago
The power, P, of a gear varies directly with its radius, r. If the power of a certain gear is 550 and the radius for that gear i
hodyreva [135]

Answer/Step-by-step explanation:

Given that P varies directly with r, the equation for this direct variation would be:

P = rk,

Where,

P = power

r = radius

k = constant of variation.

If P = 550, when r = 11, constant of this direct variation is calculated as follows:

Plug in the values of P and r into the variation equation to find k.

550 = 11k

Divide both sides by 11

\frac{550}{11} = {11k}{11}

50 = k

Constant of variation = 50

To find the radius (r) of the gear whose power (P) = 715, substitute P = 715 and k = 50 in the variation equation.

P = rk

715 = r*50

\frac{715}{50} = \frac{50r}{50}

\frac{715}{50} = \frac{50r}{50}

14.3 = r

r = 14.3

4 0
4 years ago
Which expressions represent exponential decay? Check all that apply.
fiasKO [112]

The expressions that represent exponential decay are 900(0.05)^t, 700(0.9)^x and  53(1.75)(0.3)^x

<h3>How to determine the expressions?</h3>

An exponential function is represented as:

y = ab^x

The above means that options (f) and (g) are not exponential functions

When b is less than 1, then the function is an exponential decay.

From the list of options, we have:

900(0.05)^t => b = 0.05

700(0.9)^x => b = 0.9

53(1.75)(0.3)^x => b = 0.3

Hence, the expressions that represent exponential decay are 900(0.05)^t, 700(0.9)^x and  53(1.75)(0.3)^x

Read more about exponential decay at:

brainly.com/question/14355665

#SPJ1

5 0
2 years ago
the circle shown below is centered at the origin and contains the point (-4,-2). Which of the following is closest to the length
aniked [119]
We know the circle has its center at the origin, 0,0, and the point -4,-2 is on the circle, is just the distance from the center to a point on it, thus

\bf \textit{distance between 2 points}\\ \quad \\&#10;\begin{array}{lllll}&#10;&x_1&y_1&x_2&y_2\\&#10;%  (a,b)&#10;&({{ 0}}\quad ,&{{ 0}})\quad &#10;%  (c,d)&#10;&({{ -4}}\quad ,&{{ -2}})&#10;\end{array}\qquad &#10;%  distance value&#10;d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}&#10;\\\\\\&#10;r=\sqrt{(-4-0)^2+(-2-0)^2}\implies r=\sqrt{(-4)^2+(-2)^2}&#10;\\\\\\&#10;r=\sqrt{16+4}\implies r=\sqrt{20}\implies r=\sqrt{4\cdot 5}\implies r=\sqrt{2^2\cdot 5}&#10;\\\\\\&#10;r=2\sqrt{5}
8 0
3 years ago
Read 2 more answers
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