Solve each system by graphing or using a table. Check your answers.
2x+y=−1
−x−2y=−4

Answer:

76

Step-by-step explanation:

(78+77+76+75+74)/5=x

x=76.

So the mean is 76.

Hope this helps plz hit the crown :D

Answer:

c.

Step-by-step explanation:

when an equation doesn't have a y-intercept. That means it is proportional.

Answer:

110 + 5x (I'm not sure if you need the dollar signs...if you do, one goes in front of the 110 and one goes in front of the 5)

Step-by-step explanation:

$20 + $90 = $110

Equation:

110 + 5x

110 represents the base cost of the turtle and the terrarium.

5 represents the cost of the turtle food

x represents the number of weeks that she is purchasing the food.

Answer:

if they answered U tell me plz ...

Answer:

-6

Step-by-step explanation:

look at the graph

Answer:

13

Step-by-step explanation:

Answer:

13

Step-by-step explanation:

6-(-7)=

6+7

=13

Answer:

The wording of this question is vague.  Are the numbers 3.4, 2.2, and 4.6 the weights in pounds (lbs) of the individual items carried by each hiker?  I will assume that each of x hikers carries 3 items of weights 3.4, 2.2, and 4.6 lbs, and I will assume that you seek the total weight W carried by the group of x hikers.

W = (number of hikers)(pounds carried by each hiker) = x(3.4 + 2.2 + 4.6) lbs.

There is not much more i can tell you without additional information or clarification.

Step-by-step explanation:

Answer:

"-7847 that is what I got

Answer:

21 R14

Step-by-step explanation:

413 / 19 = 21.736

19 x 21 = 399

413 - 399 = 14 as the remainder

Answer:

It is in the seocnd quadrant

Step-by-step explanation:

Because if you look on a graph you'll see that if you go to -2 on the x axis and then 3 on the y axis and count the quadrants it's in the second one.

Answer:

It lies on the 2nd quadrant.

Step-by-step explanation:

because in 1st quad elements having (+,+)are kept

2nd quad elements have(-,+)

3rd quad elements have (-,-)

4th quad elements have (+,-)

Answer:

40) y=2x+1

42) y=-4/3x-2

Step-by-step explanation:

Answer:

Step-by-step explanation:

we call one side x and the other side 4x-7. Because in a rectangle opposite sides are equal we can now set up an equation.

x + x + 4x-7 +4x-7 = 180

              10x - 14 = 180

                   10x = 194

                    x = 19.4

the lenght of the other side is 4(19.4)-7 = 70.6

Answer:

directly

Step-by-step explanation:

Answer:

[tex]\boxed{\begin{array}{c|c|c|}x & 1 & 10 \\ y & 6 & ?\end{array}}[/tex]

[tex]\sf x \propto y [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf x_1 y_2=x_2 y_1[/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 1×y_2=10\times6 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf y_2={\dfrac {10\times6}{1}}[/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf y_2=60 [/tex]

[tex]\therefore[/tex][tex]{\underline{\boxed{\bf y_2=60}}}[/tex]

Answer:

hi

Step-by-step explanation:

20

Answer:

20................................

Answer:

a = -10

Step-by-step explanation:

Answer:

(2*3a+6*2)=(4*a-4*2)

(6a+12)=(4a-8)

(6a-4a)=(12+8)

(2a)=(20)

a=20/2=10

Answer:

30.625

Explanation:

Hope this helps.

Answer:

Juan does not have enough lumber to make the five shelves.

Step-by-step explanation:

Let assume that:

If Juan bought a piece of lumber that is 18 feet long.

and the bookcase will have = 5 shelves

Also, the length of each bookcase = 2 1/2 long = 2.5 long

Then the amount required for the five shelves = 5 × 2.5

= 12.5 feet long

Therefore, we can say Juan does not have enough lumber to make the five shelves.

Hence, he will need an addition of: (18 - 12.5) feet = 5.5 feet piece of lumber

Answer:

$79.74

Step-by-step explanation:

$956.89 (annual cost of insurance) / 12 (months in a year) = $79.74

Answer: d, f

explanation:

Answer:

[-5,-13]

Step-by-step explanation:

To solve this, start by getting rid of the -1 by adding 1 to 8 now you're left with:

|x - 4| ≤ 9 now you will solve this like a regular absolute value inequality

Because the equation withing the absolute value signs can be negative, you will solve this equation twice, once with a negative answer, and the next time, with a positive answer. However, in order to get a negative answer the sign ≤ needs to be flipped. Now we can solve.

Equation 1:

x - 4 ≤ 9 add 4 to -4 so it cancels out, then add it to 9

x ≤ 13

Equation 2:

x - 4 ≥ -9 add 4 to -4 so it cancels out, then add it to -9

x ≥ -5

Both of these equations can be simplified and turned into one compound inequality:

-5 ≤ x ≤ 13

In interval notation, this would be written as:

[-5,13]

Answer:

the answer is for the question is 0

Answer:

I am guessing the question needed to be solved is the one in the green box if so, the answer is 0

Step-by-step explanation:

The coordinates being used are (3,0). 3 being the x and 0 being the y. For the green box, it is y-0 because we substitute it with the 0.

Answer:

wag umasa sa brainy

Step-by-step explanation:

dahil sa brainy nagiging tamad Ang tao

kailangan ikaw Ang mag sagot

Answer:

$18.70

Step-by-step explanation:

Answer:

Darius can buy 16 heads of cabbage

Step-by-step explanation:

28.80 divided by 1.80 is equal to 16.

Answer:

57 tickets

Step-by-step explanation:

This is because 650-200= 450 and 450/8 is 56.25

so round the answer up and you get 57

Answer:

(exact 56.25) rounded, more realistic 57 tickets

Step-by-step explanation:

650 total

650-200=450 this is the price removing the 200 as the starting investment.

450÷8 = 56.25 people would need to buy movie tickets.

since there can not be 0.25 of a ticket then, a rounded 57 people would have to buy tickets and they would have 456$

they only need 450 (56.25×8) so they have an extra 6 dollars to buy KitKats and candy or something.

[tex]y = - \frac{1}{2} x + 9[/tex]

since the slope-intercept equation is y=mx+b

m represents the slope

b represents the y-intercept

Answer:

n = 12

Step-by-step explanation:

Rewrite it as [tex]\frac{(n+3)}{5} = 3[/tex]

Multiply both sides by 5

(n+3) = 15

You can drop the parenthesis now.

n + 3 = 15

n = 12

Answer:

12/5

Step-by-step explanation: 12/5 + 3 ÷ 5 = 3

Answer:

5850 calories

Step-by-step explanation:

Answer:

They ate 17,550 calories in all

Step-by-step explanation:

325 x 3 = 975 calories for the three people in all for one day

975 x 18 = 17,550 calories in all

Answer:

rotation

Step-by-step explanation:

The transformation used to transform figure 1 into figure 2 is a dilation.

A dilation is a transformation that yields a picture that differs in size while maintaining the original image's shape.

Given that, figure 1 is transformed into figure 2, and figure 2 is transformed into figure 3 which s similar to figure 1.

Since figure 1 is similar to figure 3, as per the transitivity property, figure 1 is similar to figure 2.

Since figure 1 is similar to figure 2, the ratio of their side lengths is proportional.

Since the ratio of the side lengths of the two figures is proportional, the transformation is a dilation.

Hence, the transformation used to transform figure 1 into figure 2 is a dilation.

Learn more about the dilation:

https://brainly.com/question/13176891

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