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2 years ago

Solve the system of substitution y=6x-14 y=-8x

1 answer:

Ivan2 years ago

8 0

6x−14y+−6x=−8x+−6x

−14y=−14x

−14y/−14=−14x/−14
y=x

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Devaughn is 13 years younger than Sydney. The sum of their ages is 75 . What is Sydney's age?

barxatty [35]

S= Sydney
devaughn= s-13

so s+s-13=75
2s-13=75
now I think you can solve the rest.

6 0

2 years ago

Somebody help me 33 please!!!

Lubov Fominskaja [6]

The circle is divided in to 6 pieces.

one of the pieces is shaded.

The shaded portion/the number of pieces

1/6

8 0

2 years ago

Read 2 more answers

Amelia works for 6 hours and earns $48. The graph shows the relationship between the number of hours Amelia works, x, and the to

Volgvan

Answer:

Option B.(1,8)

Step-by-step explanation:

Let

x ----> the number of hours worked

y ---->the amount earned in dollars

we know that

To find out the unit rate divide the total amount earned by the total hours worked

$\frac{\$48}{6}=\$8\ per\ hour$

That means

For x=1 hour, y=$8

therefore

The point that represent the unit rate is (1,8)

4 0

3 years ago

A computer is generating passwords. The computer generates six characters at random, and each is equally likely to be any of the

SVETLANKA909090 [29]

Answer:

0.1419 ( (if upper and lower cases are interchangeable)

0.348 ( if upper and lower cases are distinct letters)

Step-by-step explanation:

Each digit has 36 possible choices as 26+10

computer generates six characters

there are only 26 choices for letters only, (if we assume upper and lower cases are interchangeable)

For number of letters-only arrangements = $26^{6}$ = 308915776

For number of alphanumeric arrangements = $36^{6}$ = 2176782336

In order to find the probability of letters-only arrangements : $\frac{308915776}{2176782336}$

=>0.1419

Now, in different scenario if upper and lower cases are not interchangeable.

We will have 26+26+10=62 alphanumeric choices, and 52 alphabetic choices

Therefore, probability of letters-only arrangements will be $\frac{52^{6} }{62^{6} }$

=>0.348

4 0

2 years ago

Read 2 more answers

What is the value of x?

VARVARA [1.3K]

Ok, so first know that the angle x and the angle oposite it (next to 52 degrees) are the same
and the 2 other angles in the triangle with the 52 degre angle are the same measure

there are several ways to solve, but all of them require us to find all the angles
so
notice that 2 angles in the triangle are the same measure
so

and also all angles add to 180 in a triangle
so ?+?+52=180
2?+52=180
minus 52 both sides
2?=128
divide both sides by 2
?=64

now we do another thing
consider the bigger trignalg
it has angles of ?, 52+x, and x (the double angle measure thing means same)

so
they add to 180
and ?=64

64+52+x+x=180
116+2x=180
minus 116 both sides
2x=64
divide both sides by 2
x=32

4 0

2 years ago