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3 years ago

The first question please

Mathematics

2 answers:

konstantin123 [22]3 years ago

6 0

It is the first question u are looking for

Ulleksa [173]3 years ago

5 0

Don't understand which is the first

Read more about percentage at:

brainly.com/question/843074

#SPJ1

3 0

2 years ago

(08.06) Data are collected about the amount of time, in minutes, each band member spends practicing. How does a single outlier c

FrozenT [24]

Its A a single outlier causes the upper quartiles to move close together

im pretty sure

7 0

3 years ago

Read 2 more answers

Solve the system of equations by substitution. 3/8 x + 1/3 y =17/24 and <br> x + 7y = 8

goblinko [34]

$\left \{ {{ \frac{3}{8}x+ \frac{1}{3}y = \frac{17}{14} } \atop {x+7y=8}} \right.$

To solve this system by substitution, first isolate x in the second equation.

$x+7y=8$
$x+7y-7y=8-7y$
$x=8-7y$

Now, plug this expression ( $8-7y$ ) for x in the top equation to solve for y.

$\frac{3}{8} (8-7y)+ \frac{1}{3} y= \frac{17}{14}$
$3- \frac{21}{8} y+ \frac{1}{3} y= \frac{17}{24}$
$72-63y+8y=17$
$72-55y=17$
$-55y=17-72$
$-55y=-55$
$y=1$

Now that you have y, plug it into the second equation and solve for x.

$x+7y=8$
$x+7(1)=8$
$x+7=8$
$x=1$

Last step is to plug your x- and y-values in to both equations to check your work.

$\frac{3}{8} (1)+ \frac{1}{3} y= \frac{17}{24}$

$\frac{3}{8} * \frac{3}{3} = \frac{9}{24} ; \frac{1}{3} * \frac{8}{8} = \frac{8}{24}$

$\frac{9}{24} + \frac{8}{24} = \frac{17}{24}$ <--True

$1+7(1)=8$
$1+7=8$ <--True

Answer:
$x=1 \\ y=1$

5 0

3 years ago

Express in a simplified exponential notation 18a^3b^2/2ab

Sauron [17]

Hey there,

The answer is: 18a^3b2/2ab=9a^2*b

3 0

3 years ago

Read 2 more answers

Evaluate the expression when x=-2 y=3 and z = -1/5<br> xyz=

lakkis [162]

Answer: