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3 years ago

5

Please help me out!

2 answers:

alukav5142 [94]3 years ago

8 0

Answer:

i think its no soulution

Step-by-step explanation:

the numbers all cancel out

Zigmanuir [339]3 years ago

8 0

Answer:

A. Infinitely many solutions

Step-by-step explanation:

All you have to do is solve the equation on both side.

-7x + 3 = 2 - 7x + 1 (collect like terms)

-7x + 3 = -7x + 3 ( since they are in the same format on each side it would be infinite solutions because you can pick any number and they will have the same amount on each side)

For example, the number 5

-7(5) + 3 = -7(5)+ 3

-35 + 3 = -35 + 3

-32 = -32

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sveta [45]

Answer:

1/2 is the answer. i just took the quiz

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Which system has no solution?<br> Check all that appy.

Ainat [17]

The first equation has no solution

The picture shows all the work I did, the reason I took a pic is because it is a little hard to explain by text, but I hope this helped you!

7 0

3 years ago

PLEASE HELP !!!

Andrei [34K]

Answer:

12

Step-by-step explanation:

divide 90 by 3 then take that and divide it by 5 then multiply that by 3 then subtract that from the answer of 90 divide by 3

7 0

3 years ago

Decide whether each table could represent a proportional relationship. If the

Ymorist [56]

Answer:

Step-by-step explanation:

If given tables in the picture show the proportional relationship,

Number of wheels (w) ∝ Number of buses (b)

w ∝ b

w = kb

Here, k = proportionality constant

k = $\frac{w}{b}$

Number of buses (b) Number wheels (w) Wheels per bus $(\frac{w}{b})$

5 30 $\frac{30}{5}=6$

8 48 $\frac{48}{8}=6$

10 60 $\frac{60}{10}=6$

15 90 $\frac{90}{15}=6$

Here, proportionality constant is 6.

Similarly, If number of wheels (w) ∝ Number of train cars (t)

w = kt

Here, k = proportionality constant

k = $\frac{w}{t}$

Number of train cars(t) Number of wheels(w) Wheels per train car ( $\frac{w}{t}$ )

20 184 $\frac{184}{20}=9.2$

30 264 $\frac{264}{30}=8.8$

40 344 $\frac{344}{40}=8.6$

50 424 $\frac{424}{50}=8.48$

Since, ratio of w and t is not constant, relation between number of wheels and number of train cars is not proportional.

5 0

3 years ago

If y = 8 cm, what is the area of the blue section of this shape?

Ivahew [28]

Answer:

56 cm squared

Step-by-step explanation:

First things first: Cop one triangle off the rectangle, and attach it to the other one, so the shape looks like a L

Now I can actually solve this:

The left side is 8 cm (because y = 8 cm)

The top is 10 cm

The middle is 6 cm

The inside left is 3 cm

And the very bottom is 2 cm

First, we'll solve for the newly constructed rectangle: 3 x 2. That equals 6.

Next, solve for the longer rectangle: 10 x 5. That's 50.

Now, add the two areas, and we get 56. So the area of the whole thing is 56 cm squared.

(Please keep in mind that I could be wrong, so double check it for me, thanks!)

7 0

2 years ago