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2 years ago

The graph shows the solution to which systems of equations?

Mathematics

1 answer:

fgiga [73]2 years ago

8 0

Tell you the truth bro I don't know

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I'm doing daily spiral review 4-1 A building has 8 same- sized apartments. The area of 1 apartment is 725 square feet .Let t be

Oksana_A [137]

What is your question? that made no sense sweet heart.

7 0

2 years ago

Solve for t.<br><br> −3t≥39<br> Enter your answer as an inequality in the box.

Flauer [41]

Answer:

$t\leq -13$

Step-by-step explanation:

Given inequality is $−3t\geq39$

Simplifying:

$-t\geq \frac{39}{3}$

$=>-t\geq13$

Sign of the inequality changes of making both sides negative.

$=>t\leq -13$

Hence the solution for the given inequality is represented by $t\leq -13$

This means that the original inequality will be true only for those values of t which are less than or equal to -13.

6 0

2 years ago

Read 2 more answers

Solve the inequaltiy -24 < x - 3 - 8x

Sav [38]

Answer:

x < 3

Step-by-step explanation:

$x-3-8x > -24\\-7x-3 >- 24\\-7x-3(+3)>-24+3\\-7x > 21\\-7x/-7 > 21/-7\\x < 3$

5 0

3 years ago

Read 2 more answers

You know how yo make 7 different types of cookies.you have time to make any 5 of them how many different combinations of cookies

umka21 [38]

I think it would be 35 combinations but I may be wrong

4 0

1 year ago

Kathy is fencing in her yard that has an area of 800 square feet. Her yard is in the shape of a rectangle where the length is 60

anygoal [31]

Answer:

The dimensions of the yard are W=20ft and L=40ft.

Step-by-step explanation:

Let be:

W: width of the yard.

L:length.

Now, we can write the equation of that relates length and width:

$L=5W-60$ (Equation #1)

The area of the yard can be expressed as (using equation #1 into #2):

$Area=W*L=W*(5W-60)$ (Equation #2)

Since the Area of the yard is $800 ft^2$ , then equation #2 turns into:

$800=W*(5W-60)$

Now, we rearrange this equation:

$800=W*(5W-60)//800=5W^2-60W//5W^2-60W-800=0$

We can divide the equation by 5 :

$W^2-12W-160=0$

We need to find the solution for this quadratic. Let's find the factors of 160 that multiplied yields -160 and added yields -12. Let's choose -20 and 8, since $(-20)*8=160$ and $-20+8=-12$ . The equation factorised looks like this:

$(W-20)(W+8)=0$

Therefore the possible solutions are W=20 and W=-8. We discard W=-8 since width must be a positive number. To find the length, we substitute the value of W in equation #1:

$5*20-60=40$

Therefore, the dimensions of the yard are W=20ft and L=40ft.

7 0

2 years ago