Is it possible to solve the following system by using substitution? Which method, substitution or elimination is more efficient? Complete the explanation.

braceleftze 3x − 2y = 11
x + 2y = 25
possible to use substitution. Solve the second equation for x to get x =
y + 25. Substitute x in the first equation and solve for y. Then substitute this value for y in either original equation to get a solution of (
). The elimination method is
efficient because there are
calculations and they are
to do.

Answer:

2/3*4/3= 8/9

Step-by-step explanation:

since the denonmeteres are the same you still multiply the 3's and the 2 and 4 and you get 8/9

since 8/9 can't be simplied it stays the same

Answer:

7.71 ft

Step-by-step explanation:

3.14x3=9.42

1/2 of 9.42=4.71

4.71+3=7.71 ft

Answer:

7.71 ft

Step-by-step explanation:

Answer:

Step-by-step explanation:

Rule: (x, y) → (-y, -x)

This means that the x, will now become y, and the y will now become x.

U (-7, -4) → (4, 7)

V (1, -4) → (4, -1)

W (-5, -9) → (9, 5)

U' (4, 7)

V' (4, -1)

W' (9, 5)

*View the attached graph*

Hope this helps!

Step-by-step explanation:

-13-7<-4x

-20<-4x

-4. -4

x=5

answer= B = -5

Answer:

B. -5

Step-by-step explanation:

-13 < 4x + 7

- 7          - 7

-20 < 4x

/4      /4

-5 < x

Also written as x > -5

Hope this helps!

Answer:

3000

Step-by-step explanation:

2% of 3000 is sixty

hope that helps

Now

volume:-

Answer:

Step-by-step explanation:

In the question we are given ,

And we are asked to find the volume of cone. We know that ,

[tex] \red{\boxed{ \rm{Volume \: of \: cone = \frac{1}{3} \pi r {}^{2}h }}}[/tex]

Where ,

So , for finding volume of cone we must have to find the height of cone using slant height formula i.e. ,

[tex] \green{\boxed{ \sf{l {}^{2} = h {}^{2} + r {}^{2} }}}[/tex]

Where ,

Now , substituting values :

[tex] \hookrightarrow \: 7.5 {}^{2} = h {}^{2} + 4.5 {}^{2} [/tex]

Transposing 4.5 to left hand side :

[tex] \hookrightarrow \: 7.5 {}^{2} - 4.5 {}^{2} = h {}^{2} [/tex]

[tex] \hookrightarrow \:56.25 - 20.25 = h {}^{2} [/tex]

On further calculations we get :

[tex] \hookrightarrow \:h {}^{2} = 36[/tex]

[tex] \hookrightarrow \:h = \sqrt{36} [/tex]

We know that 6 × 6 is equal to 36 that means square root of 36 is 6 . So :

[tex] \hookrightarrow \pink{\boxed{\bold{h = 6 \: cm}}}[/tex]

Substituting values in volume formula :

[tex] \longrightarrow\: \frac{1}{ \cancel{3} } \times 3.14 \times (4.5) {}^{2} \times \cancel{6}[/tex]

Step 1 : By cancelling 6 with 3 we get :

[tex] \longrightarrow \: 3.14 \times 20.25 \times 2[/tex]

Step 2 : Multiplying 20.25 with 2 :

[tex] \longrightarrow \:3.14 \times 40.50[/tex]

Step 3 : Multiplying 3.14 with 40.50 :

[tex] \longrightarrow \: \purple{\boxed{\bold{127.17 \: cm {}^{3} }}}[/tex]

Answer:

fROM what I am looking at it is four

Step-by-step explanation:

Answer:

I think the answer will be 32,768 cubic units..

Step-by-step explanation:

The volume formula is length times width times height and you say that the area of the shaded face is 96 square cm is better we divide

96/3 =32

So, we took the colume formula like this:

V= L x W x  H

  = 32 x 32 x 32

  =  1,024    x  32

  =   32,768 cubic units

Answer:

160

Step-by-step explanation:

Area of base x height

Area of base= 15x3=45

45 x height= 45 x 4

45 x 4= 180

Answer:

your answer is 8

Step-by-step explanation:

Since there is 5 school days in a week you will count all the X,s 5 and above.

HOPE THIS HELPSSSS AND HAVE A GREAT DAY :)

Answer:

8 students met or exceeded the goal

Step-by-step explanation:

There are 5 school days in one week meaning they would have to read a minimum of 5 chapters per week and out of the 12 students listed in the graph, only 4 students did not reach the required amount leaving 8 students who did.

Answer:

that is a tough one ;1000

Step-by-step explanation:

all that is to it

Answer:

68 inches

Step-by-step explanation:

8 • 8.5= 68

Answer:

10 units for the perimeter

6 square units for the Area

Step-by-step explanation:

May I get brainlest if I get this right.

Answer: Perimeter is 10

Area is 6

Step-by-step explanation:

add all the squares around the blue squares for perimeter

Add the blue squares for area

Answer:

40%

Step-by-step explanation:

2/5 = 0.4 or 40% (2 x 2 = 4, 5 x 5 = 10)

Therefore 40% of the students earned an A.

Answer:

it's A, 3 feet by 4 feet by 5 feet

Answer:

333.3333 repeating

Step-by-step explanation:

Divide 500 by 3 then multiply the answer by 2.

With one dice the chance of rolling a one is 1/6.

With two you have twice the probability, so its 1/3.

This is because there are 6 sides on a dice.

Please mark brainliest if this helped!

Answer:

The probability of rolling at least one 1 is 1/3

Step-by-step explanation:

When there is one dice the probability of rolling a '1' is 1/6

When you roll two dice, the probability of rolling a '1' increases, making it a 1/3 of rolling a one.

-I hope this helps!

Answer:

80

Step-by-step explanation:

So, let's say the total number of pizzas is x

If 15% of x, the total, is 12, then x * 0.15 must = 12

Use this to make an equation

12 = 0.15x

Divide both sides by 0.15 to get x on its own

12 / 0.15 = x0.15 / 0.15

80 = x

80 pizzas were sold

Answer:

Monthly fee is $50

Step-by-step explanation:

100 + 12x = 700

12x = 600

x = 50

100 being the initial fee, 12x being the monthly fee (as there is 12 months in a year).

Answer:
The width of member is as follows:
b = 3 ft

b = 3 × 12 in.

b= 36 in.
The depth of member is as follows:

d = 8 ft

d = 8 × 12 in.

d=96 in.
Since the structure used is Douglas fir-Larch lumber of size 3 × 8 size. Hence, tensile strength, f =1000 psi
Calculate the net area of the member as follows:
A = (b - ∅) × d

A= (36 - 7/8) × 96
[tex]A = 3372in^{2}[/tex]
Calculate the maximum axial tensile load by ASD method as follows:
P = f × A

P = 1000 x 3372

P = 3372000 lbs  
P = 3372 kips

Answer:

D. 51.2 oz

Step-by-step explanation:

Since there are 16 ounces in one pound, multiply 3.2 by 16 to get the answer, 51.2. I can't see the choices for the second question so can't help with that one.

Hopefully this helps- let me know if you have any questions!

Answer:

D. 51.2oz

Step-by-step explanation:

1 pound = 16 oz

3.2 * 16

51.2 oz

Hope this helps!

Answer:

5 = |-5|

Step-by-step explanation:

Think of it as a number line, like in the picture below. The absolute value is how far a number is from zero (0). If 5 is 5 away from zero, then the opposite of 5 (-5) is also 5 away from zero.

Refer to the picture below for an illustration:

Answer:

Equal to.

Step-by-step explanation:

5 is the absolute value of -5. The bars you see indicate that you are trying to find the absolute value.

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The absolute value is the distance of that number from 0. The absolute value is always positive.

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|-5|= 5. If the bars were not there, then it would be [tex]5 > -5\\[/tex]. If the two terms were flipped, it would be [tex]-5 < 5[/tex]. But because the bars are there, it is resembling the absolute value.

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Here are a few more examples to help you understand:

|6| The absolute value of 6 is 6. It is 6 values away from 0.

|-1| The absolute value of -1 is 1. It is 1 value away from 0.

|-10| The absolute value of -10 is 10. It is 10 values away from 0.

|98| The absolute value of 98 is 98. It is 98 values away from 0.

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I hope this helps!

-No one

Answer:

She can make 41 bracelets!:D

Answer: сдхдкссахкайсефдуехф84

Step-by-step explanation:

Answer:

1.2 cm

Step-by-step explanation:

3/5, in decimal form, is 0.6.

You find the diameter by multiplying the radius by 2.

0.6 * 2 = 1.2

Answer:

1 1/5 or 1.2

Step-by-step explanation:

You multiply the radius (the number in the picture) by two, because the diameter is twice the radius

hope that helps

Answer:

Step-by-step explanation:

I'll the diagram of the this question

Answer:

The answer is D

Step-by-step explanation:

Red-Regular

Red - Premium

Silver-regular

Silver-premium

Yellow-regular

Yellow-Premium.

This all shows the space of choosing the color and gift box for the gift.

Because of the description.

If this answer is right pls give brainlest.

Answer:

mass of empty basket: 1.21 kg

Explanation:

the mass of basket is constant. Let the mass of basket be "b" and mass of each balls be "m"

Make equations:

solve them simultaneously,

mass of basket,

Now

So

So