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3 years ago

Solve the equation 13-2x=-7

2 answers:

8 0

Subtract 13 from both sides.

-13
-7 = -20

-2x = -20

Divide by 2 on both sides.
Remember: Negative divided by a negative makes a positive.

-2/-2 = 1
-20/-2 = 10

Your answer:
x = 10

Ilya [14]3 years ago

6 0

▶13 - 2(x) - -7 = ?
? = 0

▶20 - 2(x)
Two is a negative
So, -2 = ?
Remember, that I said the mysterious number is '0' until we get to the REAL answer!

▶ (x) - 10 = 0
If we 'add' from your side we will get your result!

▶We have One Solution in this problem◀

⚠So, lets test it out⚠

✔ x - 10 = 0
+10
-------
✔10✔

▶✅x = 10✅

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The events committee buys 80 flowers for a school dance. The flowers are a combination of carnations and roses. Each carnation c

Slav-nsk [51]

Answer:

64 carnations and 16 roses.

Step-by-step explanation:

The events committee buys 80 flowers

The flowers are a combination of carnations and roses.

Each carnation costs $0.50 and each rose costs $2.50

The committee spends a total of $72

Solution:

Let there be (c) carnations and (r) roses.

So,

c + r = 80 flowers

and $0.50c + $2.50 = $72

This forms a simultaneous equation:

c + r = 80 ... (i)

0.5c + 2.5r = 72 ... (ii)

Multiplying equation (i) by 0.5 and equation (ii) by 1 gives;

0.5c + 0.5r = 40 ... (i)

0.5c + 2.5r = 72 ... (ii)

Subtracting (i) from (ii) gives;

0c + 2r = 32

2r = 32

r = 32 ÷ 2 = 16

Therefore, there are 16 roses

and 80 - 16 = 64 carnations

7 0

3 years ago

CAN SOMEONE WHO KNOWS HOW TO DO THIS PLEASE HELP ME

7nadin3 [17]

Firstly start off with finding the lowest common multiple of 14 and 24. The LCM would be 168. Then you would look at your powers, here you have to choose the highest power of each letter. So 14x^4 and 24x^6 the highest is x^6, then for y it would be y^6 and then for z it would be z^8. So altogether your answer would be 168x^6y^6z^8

4 0

3 years ago

A rectangle measures 6 cm by 4 cm. Another rectangle with adjacent sides 8 cm and x cm is geometrically similar to it. Find the

Elis [28]

Answer:

5 1/3 or 5.33333333333333333333333333333333333333333333333333333

Step-by-step explanation:

to find the scale factor, you must divide the two equal sides.

$\frac{6}{8}$

which equals

$\frac{3}{4}$ or 0.75

Now, the way to get the value of x is to divide 4 by 3/4 0r 0.75

$\frac{4}{0.75}$

Which equals

5.333 repeating or 5 1/3

Hope this helps. If you have any follow-up questions, feel free to ask.

Have a great day! :)

6 0

3 years ago

S=3.2yd A=square Find the area

wlad13 [49]

since a square must be the same length on all sides to be a correct square, you can legit just multiply the length of one side times four to get the area.

3.2 x 4 = 12.6

8 0

2 years ago

Help please

Arisa [49]

Answer:

E. Leela Chitnis

Step-by-step explanation:

5 0

2 years ago

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