Test
Test
Active
1
2
3
4
5
TIME REMAINING
01:47:04
Which statement correctly explains how Andre could find the solution to the following system of linear equations using
elimination?
(85-9-15
(75-21-12
O Multiply the first equation by -7 and the second equation by 8, and then subtract
O Multiply the first equation by -7 and the second equation by 8, and then add.
O Multiply the first equation by 2 and the second equation by 9, and then add.
O Multiply the first equation by -2 and the second equation by 9, and then subtract.
​

Answer:

His savings be $32 and spendings be $112.

Step-by-step explanation:

Let her savings and spending be 2x and 7x.

Total earning is equal to the sum of savings and spending.

ATQ,

2x+7x=144

9x=144

x = 16

Savings = 2x = 2(16) = $32

Spendings = 7x = 7(16) = $112

Hence, his savings be $32 and spendings be $112.

Answer:

1:eaxctly two factors  2:more than two factors  3:neither prime nor composite

Step-by-step explanation:

I GOT IT RIGHT!

Answer:

Answer time!!

1. exactly 2 factors

2. more than 2 factors

3. niether prime nor compisite

Answer:

Y=5x - 12

Step-by-step explanation:

Take a point as (x,y) on the (4,8) line,

The slope of equation is 5,

[tex] \frac{y - 8}{x - 4} = 5[/tex]

Y-8 =5x-20

Y= 5x - 12

Answer: Greater than

Step-by-step explanation: 0.012 is 12 hundreths

0.12 is 12 tenths

Answer:

The mass of the steel ball is 4,235.9 gr

Step-by-step explanation:

Density

The density ρ of a substance is a measure of its mass per unit volume:

[tex]\displaystyle \rho=\frac{m}{V}[/tex]

If the density and the volume are given, the mass can be calculated by solving the above formula for m:

[tex]m=\rho.V[/tex]

We know the density of pure steel ρ=8.09 gr/cm3 and the diameter of a solid steel ball d=10 cm.

We need to calculate the volume of the sphere:

The volume of a sphere of radius r is given by:

[tex]\displaystyle V=\frac{4}{3}\cdot \pi\cdot r^3[/tex]

The radius is half the diameter: r= 10/2 = 5 cm. Thus:

[tex]\displaystyle V=\frac{4}{3}\cdot \pi\cdot 5^3[/tex]

Calculating:

[tex]V=523.6\ cm^3[/tex]

The mass is:

[tex]m=8.09 gr/cm^3 \cdot 523.6\ cm^3[/tex]

m=4,235.9 gr

The mass of the steel ball is 4,235.9 gr

Unit price matters because retailers and manufacturers have different sized packages, such as regular and family-sized cereal. Looking at the unit price gives you a consistent tool by which to determine which package is cheaper—although discounts often happen with larger amounts, bigger doesn't always mean you'll save.

PLEASE GIVE ME AS BRAINLIEST

Answer: true

Step-by-step explanation:

true

Answer:

23 is 31/100

Step-by-step explanation:

not sure about the rest sorry :(

Answer:

16. Garret

17. 0

18. 4140

19. 2,3

20. 29/69

21. 3 1/3

22. choice  A

23. 31/100

24. 7

Answer:

-8x + 13

Step-by-step explanation:

Write out the equation:

2x+9-10x+4

Combine Like Terms:

-8x+9+4=

-8x+13

Answer:

f(x)= 2/3x + 1

Step-by-step explanation:

Answer:

A. f(x) = 2/3x + 1

Step-by-step explanation:

Your y-intercept is + 1 because it the line crosses the y-axis at (0,1)

The slope is +2/3 because it rise up 2 units then right at 3 units; sloping to the right (positive slope)

Answer:

[0,12]

Step-by-step explanation:

Answer:

1. 1.6x10 08

2. 2.983x10 04

3.  3.5x10 -04

Step-by-step explanation:

the ones with the space goes on the Top and i did it in the calculator have a nice day y'all and stay safe :)

Answer:

(22, 11)

Step-by-step explanation:

Did the test on edge and got it right

Answer:

The answer is C

Step-by-step explanation:

got it right on edge

Answer:

The difference of a number and three

Step-by-step explanation:

This means you are taking 3 away from the number in this situation A

Answer:

Not sure what the "line" is! But I put a graph down below!

Step-by-step explanation:

To plot  ( 20 , 13 ) , start at the origin  ( 0 , 0 )  and move right  20  units and up  13  units.

Well I don’t know the answer lol but I’m just showing people that don’t know what it is.

Answer:

s = 5

Step-by-step explanation:

-40 = 10 - 10s

-10     -10

-50 = -10s

/-10      /-10

s = 5

Answer:

s=5

Step-by-step explanation:

Well first, to isolate x, we need to subtract 10 on both sides.

-40=10-10s

-10  -10

-50=-10s

Now, we can divide 10 on both sides to solve for s.

-50=-10s

/-10  /-10

5=s

Hope this helped you!!! Have an amazing day :3

Step-by-step explanation:

let the total charge be y

and the number of rose be x

Florist A charges

y=40+4.75x---------1

Florist B charges

y=25+5.2x--------2

to solve for the number of roses we need to equate 1 and 2

40+4.75x=25+5.2x

40-25=5.2x-4.75x

15=0.45x

x=15/0.45

x=33.33

The number of roses that will be less expensive to order from A is 33.33

Answer:

Step-by-step explanation:

33.33

Answer:

1/3

Step-by-step explanation:

Answer:

Value over a defined period of time, and it represents the momentum of a variable. ✨

Step-by-step explanation:

Answer:

22

Step-by-step explanation:

The side of the rectangle that is 20 feet divide it by 5

[tex]\dfrac{20}{5}=4[/tex]

Now we add one to this as the fence post each required in each 5 feet section.

The same is the case for the opposite side.

So, the number of fence posts for the 20 feet sides is [tex]5+5=10[/tex]

Now for the 35 feet side

[tex]\dfrac{35}{5}=7[/tex]

Remove 1 fence post from the ends as that fence post will be covered by the ones on the 20 feet side.

So, new posts on the 35 ft side is 6.

So, the number of fence posts for the 20 feet sides is [tex]6+6=12[/tex]

Total number of posts is [tex]10+12=22[/tex]

Answer:

24

Step-by-step explanation:

18/24=0.75

Hope this helps!

Answer:

I believe the answer is B.

Step-by-step explanation:

If you think about it, none of the other answers really make sense. This is the only one that I can see that actually makes sense. If I am wrong, I am very sorry.

Answer:

1w+4o=5

Step-by-step explanation:

w=water o=orange juice there is 4 liters of orange juice

Answer:

80% juice : 20% water

x  : 1 liter

80 ÷ 20 = 4

1 liter x 4 = 4 liter

x = 4

Part a = x÷4 or x/4

Part b = 4 liter

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

-1 x (-0.1 x -5 + 0.5)

= -1 x 1

= -1

Answer:

= 1.9509 × 10^10

Step-by-step explanation:

Look at the attachment below

Hope this helps (:

Answer: [tex]\frac{11}{21}[/tex]

[tex]\frac{5}{14} + \frac{1}{6}[/tex]

[tex]\frac{15}{42} + \frac{7}{42} = \frac{22}{42}[/tex]

[tex]\frac{22}{42} = \frac{11}{21}[/tex]