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Deffense [45]
3 years ago
14

Which property was used to write the equation in step 2?

Mathematics
2 answers:
Troyanec [42]3 years ago
8 0

Answer:

distributive property

Step-by-step explanation:

almond37 [142]3 years ago
4 0

Answer:

It's the subtraction property of equality because you have to subtract.

Step-by-step explanation:

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Tell whether (3,5) is a solution of y = 5x – 10.
Ivanshal [37]

Answer:

yes it is

Step-by-step explanation:

plug x and y in

3 * 5 - 10 = 5 <== And this is true

6 0
3 years ago
Read 2 more answers
Evaluate a + b for a = 12 and b = 6.
den301095 [7]

Answer:

Here,

a= 12

b = 6

Then,

a+b

= 12 + 6

= 18

.°. 18 is the solution

3 0
3 years ago
Read 2 more answers
Y=2x-1 and y=x-8 using substitution​
Vitek1552 [10]

Answer:

Step-by-step explanation:

y = 2x - 1

y = x - 8 ------ (i)

substitute y = 2x - 1 in equation (i)

2x - 1 = x - 8

2x = x - 8 + 1

2x = x - 7

2x - x = -7

x = -7

Substitute x value in equation (i)

y = -7 - 8

y = -15

7 0
3 years ago
ABC and EDC are straight lines. EA is parallel to DB. EC = 8.1 cm. DC = 5.4 cm. DB = 2.6 cm. (a) Work out the length of AE. cm (
harkovskaia [24]

By applying the knowledge of similar triangles, the lengths of AE and AB are:

a. \mathbf{AE = 3.9 $ cm}\\\\

b. \mathbf{AB = 2.05 $ cm} \\\\

<em>See the image in the attachment for the referred diagram.</em>

<em />

  • The two triangles, triangle AEC and triangle BDC are similar triangles.
  • Therefore, the ratio of the corresponding sides of triangles AEC and BDC will be the same.

<em>This implies that</em>:

  • AC/BC = EC/DC = AE/DB

<em><u>Given:</u></em>

EC = 8.1 $ cm\\\\DC = 5.4 $ cm\\\\DB = 2.6 cm\\\\AC = 6.15 $ cm

<u>a. </u><u>Find the length of </u><u>AE</u><u>:</u>

EC/DC = AE/DB

  • Plug in the values

\frac{8.1}{5.4} = \frac{AE}{2.6}

  • Cross multiply

5.4 \times AE = 8.1 \times 2.6\\\\5.4 \times AE = 21.06

  • Divide both sides by 5.4

AE = \frac{21.06}{5.4} = 3.9 $ cm

<u>b. </u><u>Find the length of </u><u>AB:</u>

AB = AC - BC

AC = 6.15 cm

To find BC, use AC/BC = EC/DC.

  • Plug in the values

\frac{6.15}{BC} = \frac{8.1}{5.4}

  • Cross multiply

BC \times 8.1 = 6.15 \times 5.4\\\\BC = \frac{6.15 \times 5.4}{8.1} \\\\BC = 4.1

  • Thus:

AB = AC - BC

  • Substitute

AB = 6.15 - 4.1\\\\AB = 2.05 $ cm

Therefore, by applying the knowledge of similar triangles, the lengths of AE and AB are:

a. \mathbf{AE = 3.9 $ cm}\\\\

b. \mathbf{AB = 2.05 $ cm} \\\\

Learn more here:

brainly.com/question/14327552

3 0
3 years ago
HELP HOW DO YOU WORK THIS OUT!!
Harrizon [31]

Answer:

I believe it would be 4/6

Step-by-step explanation:

You have four different ways to get a sum of 7: 1 and 6; 2 and 5; 3 and 4; or 4 and 3.

4 0
3 years ago
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