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3 years ago

Help I’m being timed!!

Mathematics

2 answers:

sergiy2304 [10]3 years ago

7 0

Answer:

true I think. I rember some, sorry if its wrong

jok3333 [9.3K]3 years ago

6 0

Trueeeeeeeeeeeeeeeeeeee

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NEED ANSWER ASAP WILL GIVE BRAINLIEST

ch4aika [34]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

alvin and simon raced a distance of 2.9 x 10^2 kilometers. they need to race 7 times that distance in kilometer. how far must th

dimaraw [331]

The distance in kilometers in scientific notation $2.03 \times 10^3 km$

<h3>Scale factors</h3>

Scale factors are values or constants multiplied with a variable

If Alvin and Simon raced a distance of $2.9 \times 10^2$ kilometers and they need to race 7 times that distance in a kilometer, the distance traveled will be:

Distance travelled = $7(2.9 \times 10^2)$
Distance travelled = $2.03 \times 10^3 km$

Hence the distance in kilometers in scientific notation $2.03 \times 10^3 km$

Learn more on distance here: brainly.com/question/23848540

8 0

3 years ago

3. If 3, x, y, 18, are in arithmetic progression, (A, P) find the value of x and y

Luba_88 [7]

Answer:

Below in bold

Step-by-step explanation:

The sequence is:

3, x, y, 18

If this is an A P then

x - 3 = y - x

2x - y = 3 (A) and

y - x = 18 - y

2y - x = 18 (B)

Multiply (A) by 2:

4x - 2y = 6 (C)

Adding B and C:

3x = 24

x = 8.

and

2y - 8 = 18

2y = 26

y = 13.

So x = 8 and y = 13.

b) ar + ar^2 = 6ar^3 where a = first term and r = common ratio

Divide by a:

r + r^2 = 6r^3

6r^3 - r^2 - r = 0

r(6r^2 - r - 1) = 0

r(3r + 1)(2r - 1) = 0

So the 2 possible values of r

= -1/3 and 1/2.

i) The common ratio is positive so it must be 1/2.

Second term ar = 8

1/2 a = 8

a = 16.

So the first 6 terms are:

16, 8, 4, 2, 1, 1/2.

5 0

2 years ago

Uscles Gym has a membership fee of $40 every 3 months. Energy Gym has a membership fee of $93 every 6 months.

snow_lady [41]

Answer:

Muscles Gym: 13.33

Energy Gym: 15.00

Step-by-step explanation:

Muscles Gym: You divide "40.00" by "3", which will then give you the answer of "13.33".

Energy Gym: You divide "93.00" by "6", which will then give you the answer of "15.50".

You then add the zero to show the proper number of cents after the decimal point.

I hope this helps!

6 0

3 years ago

Given the system of equations, what is the solution?

fredd [130]

The solution for the given equations x + 3y = 5 and x - 3y = -1 are x=2 and y=1.

Step-by-step explanation:

The given is,

$x+3y=5$ ......................................(1)

$x-3y=-1$ ....................................(2)

Step:1

By elimination method,

Subtracting Equations (1) and (2),

$x+3y=5$

$x-3y=-1$

( - )

( $x-x$ ) + ( $3y+3y$ ) = ( $5 +1$ )

$6y$ = 6

$y$ = 1

Step:2

Substitute the value of y in equation (1),

$x+3y=5$

$x$ + ( 3 × 1 ) = 5

$x$ = 5-3

$x$ = 2

Step:3

Check for Solution,

Substitute the values of x and y in Eqn (1),

$x+3y=5$

2 + ( 3 × 1 ) = 5

5 = 5

Result:

The solution for the given equations x + 3y = 5 and x - 3y = -1 are x=2 and y=1, by elimination method.

7 0

3 years ago